diff --git a/keyboards/gl516/a52gl/a52gl.c b/keyboards/gl516/a52gl/a52gl.c
new file mode 100644
index 00000000000..67c27d2d7dc
--- /dev/null
+++ b/keyboards/gl516/a52gl/a52gl.c
@@ -0,0 +1,18 @@
+/*
+Copyright 2021 Salicylic_Acid
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "a52gl.h"
diff --git a/keyboards/gl516/a52gl/a52gl.h b/keyboards/gl516/a52gl/a52gl.h
new file mode 100644
index 00000000000..6ff00c541f1
--- /dev/null
+++ b/keyboards/gl516/a52gl/a52gl.h
@@ -0,0 +1,37 @@
+/*
+Copyright 2021 Salicylic_Acid
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "quantum.h"
+
+#define LAYOUT( \
+    L00, L01, L02, L03, L04, L05,    L06, R00, R01, R02, R03, R04, R05, R06, \
+    L10, L11, L12, L13, L14, L15,    L16, R10, R11, R12, R13, R14, R15,      \
+    L20, L21, L22, L23, L24, L25,    L26, R20, R21, R22, R23, R24, R25, R26, \
+    L30, L31, L32,   L34,    L35,      L36,    R31,      R33, R34, R35, R36  \
+  ) \
+  { \
+    {   L00,   L01,   L02,   L03,   L04,   L05,   L06 }, \
+    {   L10,   L11,   L12,   L13,   L14,   L15,   L16 }, \
+    {   L20,   L21,   L22,   L23,   L24,   L25,   L26 }, \
+    {   L30,   L31,   L32, KC_NO,   L34,   L35,   L36 }, \
+    {   R00,   R01,   R02,   R03,   R04,   R05,   R06 }, \
+    {   R10,   R11,   R12,   R13,   R14,   R15, KC_NO }, \
+    {   R20,   R21,   R22,   R23,   R24,   R25,   R26 }, \
+    { KC_NO,   R31, KC_NO,   R33,   R34,   R35,   R36 }  \
+  }
diff --git a/keyboards/gl516/a52gl/config.h b/keyboards/gl516/a52gl/config.h
new file mode 100644
index 00000000000..c9f54e09282
--- /dev/null
+++ b/keyboards/gl516/a52gl/config.h
@@ -0,0 +1,44 @@
+/*
+Copyright 2021 Salicylic_Acid
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0x04D8
+#define PRODUCT_ID      0xE8D1
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    Salicylic_Acid
+#define PRODUCT         a52gl
+
+/* key matrix size */
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 7
+
+// wiring of each half
+#define MATRIX_ROW_PINS { D1, D0, D4, C6 }
+#define MATRIX_COL_PINS { F4, F5, F6, F7, B1, B3, B2 }
+#define UNUSED_PINS
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCE 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
diff --git a/keyboards/gl516/a52gl/info.json b/keyboards/gl516/a52gl/info.json
new file mode 100644
index 00000000000..406c7096ae4
--- /dev/null
+++ b/keyboards/gl516/a52gl/info.json
@@ -0,0 +1,63 @@
+{
+    "keyboard_name": "a52gl", 
+    "url": "https://salicylic-acid3.hatenablog.com/", 
+    "maintainer": "Salicylic_acid3", 
+    "layouts": {
+        "LAYOUT": {
+            "layout": [
+                {"label":"0,0", "x":0, "y":0},
+                {"label":"0,1", "x":1, "y":0},
+                {"label":"0,2", "x":2.25, "y":0},
+                {"label":"0,3", "x":3.25, "y":0},
+                {"label":"0,4", "x":4.25, "y":0},
+                {"label":"0,5", "x":5.25, "y":0},
+                {"label":"0,6", "x":7.75, "y":0},
+                {"label":"4,0", "x":8.75, "y":0},
+                {"label":"4,1", "x":9.75, "y":0},
+                {"label":"4,2", "x":10.75, "y":0},
+                {"label":"4,3", "x":12, "y":0},
+                {"label":"4,4", "x":13, "y":0},
+                {"label":"4,5", "x":14, "y":0},
+                {"label":"4,6", "x":15, "y":0, "w":1.5},
+                {"label":"1,0", "x":0, "y":1, "w":1.25},
+                {"label":"1,1", "x":1.25, "y":1},
+                {"label":"1,2", "x":2.52, "y":1},
+                {"label":"1,3", "x":3.52, "y":1},
+                {"label":"1,4", "x":4.52, "y":1},
+                {"label":"1,5", "x":5.52, "y":1},
+                {"label":"1,6", "x":8, "y":1},
+                {"label":"5,0", "x":9, "y":1},
+                {"label":"5,1", "x":10, "y":1},
+                {"label":"5,2", "x":11, "y":1},
+                {"label":"5,3", "x":12.25, "y":1},
+                {"label":"5,4", "x":13.25, "y":1},
+                {"label":"5,5", "x":14.25, "y":1, "w":2.25},
+                {"label":"2,0", "x":0, "y":2, "w":1.75},
+                {"label":"2,1", "x":1.75, "y":2},
+                {"label":"2,2", "x":3.05, "y":2},
+                {"label":"2,3", "x":4.05, "y":2},
+                {"label":"2,4", "x":5.05, "y":2},
+                {"label":"2,5", "x":6.05, "y":2},
+                {"label":"2,6", "x":7.5, "y":2},
+                {"label":"6,0", "x":8.5, "y":2},
+                {"label":"6,1", "x":9.5, "y":2},
+                {"label":"6,2", "x":10.5, "y":2},
+                {"label":"6,3", "x":12, "y":2},
+                {"label":"6,4", "x":13, "y":2},
+                {"label":"6,6", "x":15.5, "y":2},
+                {"label":"6,5", "x":14.25, "y":2.25},
+                {"label":"3,0", "x":0, "y":3, "w":1.25},
+                {"label":"3,1", "x":1.25, "y":3, "w":1.25},
+                {"label":"3,2", "x":3.05, "y":3},
+                {"label":"3,4", "x":4.05, "y":3, "w":2},
+                {"label":"3,5", "x":6.05, "y":3},
+                {"label":"3,6", "x":7.5, "y":3, "w":2.25},
+                {"label":"7,1", "x":9.75, "y":3, "w":1.25},
+                {"label":"7,3", "x":12.0, "y":3},
+                {"label":"7,4", "x":13.25, "y":3.25},
+                {"label":"7,5", "x":14.25, "y":3.25},
+                {"label":"7,6", "x":15.25, "y":3.25}
+            ]
+        }
+    }
+}
diff --git a/keyboards/gl516/a52gl/keymaps/default/keymap.c b/keyboards/gl516/a52gl/keymaps/default/keymap.c
new file mode 100644
index 00000000000..adcf71879d0
--- /dev/null
+++ b/keyboards/gl516/a52gl/keymaps/default/keymap.c
@@ -0,0 +1,52 @@
+/*
+Copyright 2021 Salicylic_Acid
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include QMK_KEYBOARD_H
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+enum layer_number {
+  _QWERTY = 0,
+  _FN,
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [_QWERTY] = LAYOUT(
+  //,-----------------------------------------------------|   |--------------------------------------------------------------.
+       KC_ESC,    KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,        KC_Y,    KC_U,    KC_I,    KC_O,    KC_P, KC_LBRC, KC_RBRC,  KC_BSPC,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+LT(_FN,KC_CAPS),  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,        KC_H,    KC_J,    KC_K,    KC_L, KC_SCLN, KC_QUOT,  KC_ENT,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      KC_LSFT,    KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,   KC_B,KC_N,    KC_M, KC_COMM,  KC_DOT, KC_SLSH,   KC_UP, KC_RSFT,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+     KC_LCTL, KC_LGUI, KC_LALT,       KC_SPC,      KC_SPC,         KC_SPC,       KC_LALT,KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT
+  //|-----------------------------------------------------|   |--------------------------------------------------------------'
+  ),
+  [_FN] = LAYOUT(
+  //,-----------------------------------------------------|   |--------------------------------------------------------------.
+        RESET,   KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,       KC_F6,   KC_F7,   KC_F8,   KC_F9,  KC_F10,  KC_F11,  KC_F12, _______,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      _______,    KC_1,    KC_2,    KC_3,    KC_4,    KC_5,        KC_6,    KC_7,    KC_8,    KC_9,    KC_0, _______, _______, 
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______,_______,_______,_______,_______,_______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______,     _______,      _______,         _______,      _______, _______, _______, _______, _______
+  //,-----------------------------------------------------|   |--------------------------------------------------------------.
+  )
+};
+
diff --git a/keyboards/gl516/a52gl/keymaps/salicylic/config.h b/keyboards/gl516/a52gl/keymaps/salicylic/config.h
new file mode 100644
index 00000000000..fd96baa819b
--- /dev/null
+++ b/keyboards/gl516/a52gl/keymaps/salicylic/config.h
@@ -0,0 +1,22 @@
+/* Copyright 2021 Salicylic_acid3
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+/* Select hand configuration */
+
+#define TAPPING_FORCE_HOLD
+#define TAPPING_TERM 180
diff --git a/keyboards/gl516/a52gl/keymaps/salicylic/keymap.c b/keyboards/gl516/a52gl/keymaps/salicylic/keymap.c
new file mode 100644
index 00000000000..4607d1dc506
--- /dev/null
+++ b/keyboards/gl516/a52gl/keymaps/salicylic/keymap.c
@@ -0,0 +1,65 @@
+/*
+Copyright 2021 Salicylic_Acid
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include QMK_KEYBOARD_H
+#include "keymap_jp.h"
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+enum layer_number {
+  _QWERTY = 0,
+  _LOWER,
+  _RAISE,
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [_QWERTY] = LAYOUT(
+  //,-----------------------------------------------------|   |--------------------------------------------------------------.
+       KC_ESC,    KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,        KC_Y,    KC_U,    KC_I,    KC_O,    KC_P, JP_LBRC, JP_RBRC, KC_BSPC,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+     KC_LCTL,    KC_A,    KC_S,    KC_D,    KC_F,    KC_G,        KC_H,    KC_J,    KC_K,    KC_L, JP_MINS, JP_BSLS,  KC_ENT,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      KC_LSFT,    KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,   KC_B,KC_N,    KC_M, KC_COMM,  KC_DOT, JP_SLSH,   KC_UP, KC_RSFT,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+  JP_ZKHK,KC_LALT,LGUI_T(JP_MHEN),LT(_LOWER,KC_ENT),KC_BSPC,LT(_RAISE,KC_SPC),ALT_T(JP_HENK),KC_APP,KC_LEFT, KC_DOWN, KC_RGHT
+  //|-----------------------------------------------------|   |--------------------------------------------------------------'
+  ),
+  [_LOWER] = LAYOUT(
+  //,-----------------------------------------------------|   |--------------------------------------------------------------.
+       KC_ESC, JP_EXLM, JP_QUES, JP_LBRC, JP_RBRC, JP_TILD,        KC_6,    KC_7,    KC_8,    KC_9, JP_ASTR, JP_SLSH, XXXXXXX, KC_DEL,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      JP_QUOT, JP_HASH,  JP_DQT, JP_LPRN, JP_RPRN,   JP_AT,     XXXXXXX,    KC_4,    KC_5,    KC_6, JP_MINS,  JP_EQL, _______, 
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      JP_CIRC, JP_PERC, JP_AMPR, JP_SCLN, JP_COLN, JP_PIPE,KC_LSFT,KC_0,    KC_1,    KC_2,    KC_3, JP_PLUS, _______, _______,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, JP_MHEN,   MO(_LOWER),     _______,       MO(_RAISE),      JP_DOT, _______, _______, _______, _______
+  //,-----------------------------------------------------|   |--------------------------------------------------------------.
+  ),
+  [_RAISE] = LAYOUT(
+  //,-----------------------------------------------------|   |--------------------------------------------------------------.
+       KC_ESC,    KC_1,    KC_2,    KC_3,    KC_4,    KC_5,        KC_6, XXXXXXX,   KC_UP, XXXXXXX, KC_PGUP,LALT(KC_PSCR),KC_PSCR, KC_DEL,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+LCTL_T(KC_F11),  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,     XXXXXXX, KC_LEFT, KC_DOWN, KC_RGHT, XXXXXXX, XXXXXXX, _______, 
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+SFT_T(KC_F12),   KC_F6,   KC_F7,   KC_F8,   KC_F9,  KC_F10,KC_LSFT,XXXXXXX,XXXXXXX,XXXXXXX,XXXXXXX, KC_PGDN, _______, _______,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, JP_MHEN,     _______,       KC_DEL,         _______,      JP_HENK, _______, _______, _______, _______
+  //,-----------------------------------------------------|   |--------------------------------------------------------------.
+  )
+};
+
diff --git a/keyboards/gl516/a52gl/keymaps/via/keymap.c b/keyboards/gl516/a52gl/keymaps/via/keymap.c
new file mode 100644
index 00000000000..77386f8a25c
--- /dev/null
+++ b/keyboards/gl516/a52gl/keymaps/via/keymap.c
@@ -0,0 +1,65 @@
+/*
+Copyright 2021 Salicylic_Acid
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [0] = LAYOUT(
+  //,-----------------------------------------------------|   |--------------------------------------------------------------.
+       KC_ESC,    KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,        KC_Y,    KC_U,    KC_I,    KC_O,    KC_P, KC_LBRC, KC_RBRC,  KC_BSPC,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+LT(1,KC_CAPS),    KC_A,    KC_S,    KC_D,    KC_F,    KC_G,        KC_H,    KC_J,    KC_K,    KC_L, KC_SCLN, KC_QUOT,  KC_ENT,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      KC_LSFT,    KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,   KC_B,KC_N,    KC_M, KC_COMM,  KC_DOT, KC_SLSH,   KC_UP, KC_RSFT,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+     KC_LCTL, KC_LGUI, KC_LALT,       KC_SPC,      KC_SPC,         KC_SPC,       KC_LALT,KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT
+  //|-----------------------------------------------------|   |--------------------------------------------------------------'
+  ),
+  [1] = LAYOUT(
+  //,-----------------------------------------------------|   |--------------------------------------------------------------.
+        RESET,   KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,       KC_F6,   KC_F7,   KC_F8,   KC_F9,  KC_F10,  KC_F11,  KC_F12, _______,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      _______,    KC_1,    KC_2,    KC_3,    KC_4,    KC_5,        KC_6,    KC_7,    KC_8,    KC_9,    KC_0, _______, _______, 
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______,_______,_______,_______,_______,_______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______,     _______,      _______,         _______,      _______, _______, _______, _______, _______
+  //,-----------------------------------------------------|   |--------------------------------------------------------------.
+  ),
+  [2] = LAYOUT(
+  //,-----------------------------------------------------|   |--------------------------------------------------------------.
+      _______, _______, _______, _______, _______, _______,     _______, _______, _______, _______, _______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______,     _______, _______, _______, _______, _______, _______, _______, 
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______,_______,_______,_______,_______,_______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______,     _______,      _______,         _______,      _______, _______, _______, _______, _______
+  //,-----------------------------------------------------|   |--------------------------------------------------------------.
+  ),
+  [3] = LAYOUT(
+  //,-----------------------------------------------------|   |--------------------------------------------------------------.
+      _______, _______, _______, _______, _______, _______,     _______, _______, _______, _______, _______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______,     _______, _______, _______, _______, _______, _______, _______, 
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______,_______,_______,_______,_______,_______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------|   |--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______,     _______,      _______,         _______,      _______, _______, _______, _______, _______
+  //,-----------------------------------------------------|   |--------------------------------------------------------------.
+  )
+};
diff --git a/keyboards/gl516/a52gl/keymaps/via/rules.mk b/keyboards/gl516/a52gl/keymaps/via/rules.mk
new file mode 100644
index 00000000000..036bd6d1c3e
--- /dev/null
+++ b/keyboards/gl516/a52gl/keymaps/via/rules.mk
@@ -0,0 +1 @@
+VIA_ENABLE = yes
\ No newline at end of file
diff --git a/keyboards/gl516/a52gl/matrix.c b/keyboards/gl516/a52gl/matrix.c
new file mode 100644
index 00000000000..1a97fdfd614
--- /dev/null
+++ b/keyboards/gl516/a52gl/matrix.c
@@ -0,0 +1,158 @@
+/*
+Copyright 2012-2018 Jun Wako, Jack Humbert, Yiancar
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include "matrix.h"
+#include "quantum.h"
+
+static const pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
+
+static void select_row(uint8_t row)
+{
+    setPinOutput(row_pins[row]);
+    writePinLow(row_pins[row]);
+}
+
+static void unselect_row(uint8_t row)
+{
+    setPinInputHigh(row_pins[row]);
+}
+
+static void unselect_rows(void)
+{
+    for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        setPinInputHigh(row_pins[x]);
+    }
+}
+
+static void select_col(uint8_t col)
+{
+    setPinOutput(col_pins[col]);
+    writePinLow(col_pins[col]);
+}
+
+static void unselect_col(uint8_t col)
+{
+    setPinInputHigh(col_pins[col]);
+}
+
+static void unselect_cols(void)
+{
+    for(uint8_t x = 0; x < MATRIX_COLS; x++) {
+        setPinInputHigh(col_pins[x]);
+    }
+}
+
+static void init_pins(void) {
+  unselect_rows();
+  unselect_cols();
+  for (uint8_t x = 0; x < MATRIX_COLS; x++) {
+    setPinInputHigh(col_pins[x]);
+  }
+  for (uint8_t x = 0; x < MATRIX_ROWS; x++) {
+    setPinInputHigh(row_pins[x]);
+  }
+}
+
+static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
+{
+    // Store last value of row prior to reading
+    matrix_row_t last_row_value = current_matrix[current_row];
+
+    // Clear data in matrix row
+    current_matrix[current_row] = 0;
+
+    // Select row and wait for row selecton to stabilize
+    select_row(current_row);
+    matrix_io_delay();
+
+    // For each col...
+    for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
+
+        // Select the col pin to read (active low)
+        uint8_t pin_state = readPin(col_pins[col_index]);
+
+        // Populate the matrix row with the state of the col pin
+        current_matrix[current_row] |=  pin_state ? 0 : (MATRIX_ROW_SHIFTER << col_index);
+    }
+
+    // Unselect row
+    unselect_row(current_row);
+
+    return (last_row_value != current_matrix[current_row]);
+}
+
+static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
+{
+    bool matrix_changed = false;
+
+    // Select col and wait for col selecton to stabilize
+    select_col(current_col);
+    matrix_io_delay();
+
+    // For each row...
+    for(uint8_t row_index = 0; row_index < MATRIX_ROWS/2; row_index++)
+    {
+        uint8_t tmp = row_index + MATRIX_ROWS/2;
+        // Store last value of row prior to reading
+        matrix_row_t last_row_value = current_matrix[tmp];
+
+        // Check row pin state
+        if (readPin(row_pins[row_index]) == 0)
+        {
+            // Pin LO, set col bit
+            current_matrix[tmp] |= (MATRIX_ROW_SHIFTER << current_col);
+        }
+        else
+        {
+            // Pin HI, clear col bit
+            current_matrix[tmp] &= ~(MATRIX_ROW_SHIFTER << current_col);
+        }
+
+        // Determine if the matrix changed state
+        if ((last_row_value != current_matrix[tmp]) && !(matrix_changed))
+        {
+            matrix_changed = true;
+        }
+    }
+
+    // Unselect col
+    unselect_col(current_col);
+
+    return matrix_changed;
+}
+
+void matrix_init_custom(void) {
+    // initialize key pins
+    init_pins();
+}
+
+bool matrix_scan_custom(matrix_row_t current_matrix[])
+{
+  bool changed = false;
+
+  // Set row, read cols
+  for (uint8_t current_row = 0; current_row < MATRIX_ROWS / 2; current_row++) {
+    changed |= read_cols_on_row(current_matrix, current_row);
+  }
+  //else
+  // Set col, read rows
+  for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
+    changed |= read_rows_on_col(current_matrix, current_col);
+  }
+  
+  return changed;
+}
diff --git a/keyboards/gl516/a52gl/readme.md b/keyboards/gl516/a52gl/readme.md
new file mode 100644
index 00000000000..cfc7277eefe
--- /dev/null
+++ b/keyboards/gl516/a52gl/readme.md
@@ -0,0 +1,26 @@
+# a52gl
+
+![a52gl](https://cdn-ak.f.st-hatena.com/images/fotolife/S/Salicylic_acid3/20210911/20210911005227.jpg)
+
+This is 52 keys Alice style keyboard.
+Use the GL516 case.
+
+* Keyboard Maintainer: [Salicylic_acid3](https://github.com/Salicylic-acid3)
+* Hardware Supported: a52gl PCB, Pro Micro
+* Hardware Availability: [PCB & Case Data](https://github.com/Salicylic-acid3/GL516_Exemple), [yushakobo Shop](https://shop.yushakobo.jp/products/3342)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make gl516/a52gl:default
+
+## Bootloader
+
+Enter the bootloader in 3 ways:
+
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard
+* **Physical reset button**: Briefly press the button on the back of the PCB - some may have pads you must short instead
+* **Keycode in layout**: Press the key mapped to `RESET` if it is available
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
+
+[Build guide](https://salicylic-acid3.hatenablog.com/entry/a52gl-j73gl-build-guide)
diff --git a/keyboards/gl516/a52gl/rules.mk b/keyboards/gl516/a52gl/rules.mk
new file mode 100644
index 00000000000..37fe9349c67
--- /dev/null
+++ b/keyboards/gl516/a52gl/rules.mk
@@ -0,0 +1,22 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+BOOTLOADER = caterina
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = yes      # Enable Bootmagic Lite
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = no         # Commands for debug and configuration
+NKRO_ENABLE = no            # Enable N-Key Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output
+
+CUSTOM_MATRIX = lite
+
+SRC += matrix.c
\ No newline at end of file
diff --git a/keyboards/gl516/j73gl/config.h b/keyboards/gl516/j73gl/config.h
new file mode 100644
index 00000000000..50d745ebb17
--- /dev/null
+++ b/keyboards/gl516/j73gl/config.h
@@ -0,0 +1,63 @@
+/*
+Copyright 2021 Salicylic_Acid
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0x04D8
+#define PRODUCT_ID      0xE8D0
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    Salicylic_Acid
+#define PRODUCT         j73gl
+
+/* key matrix size */
+#define MATRIX_ROWS 10
+#define MATRIX_COLS 8
+
+// wiring of each half
+#define MATRIX_ROW_PINS { D1, D0, D4, C6, D7 }
+#define MATRIX_COL_PINS { F4, F5, F6, F7, B1, B3, B2, E6 }
+#define UNUSED_PINS
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCE 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* ws2812 RGB LED */
+#define RGB_DI_PIN D3
+
+#ifndef RGBLED_NUM
+  #define RGBLED_NUM 73
+#endif
+
+#define RGBLIGHT_EFFECT_BREATHING
+#define RGBLIGHT_EFFECT_RAINBOW_MOOD
+#define RGBLIGHT_EFFECT_RAINBOW_SWIRL
+#define RGBLIGHT_EFFECT_SNAKE
+#define RGBLIGHT_EFFECT_KNIGHT
+#define RGBLIGHT_EFFECT_CHRISTMAS
+#define RGBLIGHT_EFFECT_STATIC_GRADIENT
+#define RGBLIGHT_EFFECT_RGB_TEST
+#define RGBLIGHT_EFFECT_ALTERNATING
+#define RGBLIGHT_EFFECT_TWINKLE
+
diff --git a/keyboards/gl516/j73gl/info.json b/keyboards/gl516/j73gl/info.json
new file mode 100644
index 00000000000..fc79f923a5b
--- /dev/null
+++ b/keyboards/gl516/j73gl/info.json
@@ -0,0 +1,84 @@
+{
+    "keyboard_name": "j73gl", 
+    "url": "https://salicylic-acid3.hatenablog.com/", 
+    "maintainer": "Salicylic_acid3", 
+    "layouts": {
+        "LAYOUT": {
+            "layout": [
+                {"label":"0,0", "x":0, "y":0},
+                {"label":"0,1", "x":1, "y":0},
+                {"label":"0,2", "x":2, "y":0},
+                {"label":"0,3", "x":3, "y":0},
+                {"label":"0,4", "x":4, "y":0},
+                {"label":"0,5", "x":5, "y":0},
+                {"label":"0,6", "x":6, "y":0},
+                {"label":"5,0", "x":7, "y":0},
+                {"label":"5,1", "x":8, "y":0},
+                {"label":"5,2", "x":9, "y":0},
+                {"label":"5,3", "x":10, "y":0},
+                {"label":"5,4", "x":11, "y":0},
+                {"label":"5,5", "x":12, "y":0},
+                {"label":"5,6", "x":13, "y":0},
+                {"label":"6,6", "x":14, "y":0},
+                {"label":"5,7", "x":15, "y":0},
+                {"label":"1,0", "x":0, "y":1, "w":1.5},
+                {"label":"1,1", "x":1.5, "y":1},
+                {"label":"1,2", "x":2.5, "y":1},
+                {"label":"1,3", "x":3.5, "y":1},
+                {"label":"1,4", "x":4.5, "y":1},
+                {"label":"1,5", "x":5.5, "y":1},
+                {"label":"1,6", "x":6.5, "y":1},
+                {"label":"6,0", "x":7.5, "y":1},
+                {"label":"6,1", "x":8.5, "y":1},
+                {"label":"6,2", "x":9.5, "y":1},
+                {"label":"6,3", "x":10.5, "y":1},
+                {"label":"6,4", "x":11.5, "y":1},
+                {"label":"6,5", "x":12.5, "y":1},
+                {"label":"7,6", "x":13.75, "y":1, "w":1.25, "h":2},
+                {"label":"6,7", "x":15, "y":1},
+                {"label":"2,0", "x":0, "y":2, "w":1.75},
+                {"label":"2,1", "x":1.75, "y":2},
+                {"label":"2,2", "x":2.75, "y":2},
+                {"label":"2,3", "x":3.75, "y":2},
+                {"label":"2,4", "x":4.75, "y":2},
+                {"label":"2,5", "x":5.75, "y":2},
+                {"label":"2,6", "x":6.75, "y":2},
+                {"label":"7,0", "x":7.75, "y":2},
+                {"label":"7,1", "x":8.75, "y":2},
+                {"label":"7,2", "x":9.75, "y":2},
+                {"label":"7,3", "x":10.75, "y":2},
+                {"label":"7,4", "x":11.75, "y":2},
+                {"label":"7,5", "x":12.75, "y":2},
+                {"label":"7,7", "x":15, "y":2},
+                {"label":"3,0", "x":0, "y":3, "w":2.25},
+                {"label":"3,1", "x":2.25, "y":3},
+                {"label":"3,2", "x":3.25, "y":3},
+                {"label":"3,3", "x":4.25, "y":3},
+                {"label":"3,4", "x":5.25, "y":3},
+                {"label":"3,5", "x":6.25, "y":3},
+                {"label":"3,6", "x":7.25, "y":3},
+                {"label":"8,0", "x":8.25, "y":3},
+                {"label":"8,1", "x":9.25, "y":3},
+                {"label":"8,2", "x":10.25, "y":3},
+                {"label":"8,3", "x":11.25, "y":3},
+                {"label":"8,5", "x":12.25, "y":3, "w":1.75},
+                {"label":"8,6", "x":14, "y":3},
+                {"label":"8,7", "x":15, "y":3},
+                {"label":"4,0", "x":0, "y":4, "w":1.25},
+                {"label":"4,1", "x":1.25, "y":4},
+                {"label":"4,2", "x":2.25, "y":4, "w":1.25},
+                {"label":"4,3", "x":3.5, "y":4},
+                {"label":"4,4", "x":4.5, "y":4, "w":1.25},
+                {"label":"4,5", "x":5.75, "y":4},
+                {"label":"4,6", "x":6.75, "y":4},
+                {"label":"9,0", "x":7.75, "y":4, "w":1.25},
+                {"label":"9,1", "x":9, "y":4},
+                {"label":"9,2", "x":10, "y":4, "w":1.25},
+                {"label":"9,3", "x":11.25, "y":4, "w":1.25},
+                {"label":"9,5", "x":13, "y":4},
+                {"label":"9,6", "x":14, "y":4},
+                {"label":"9,7", "x":15, "y":4}
+            ]
+        }
+    }
+}
diff --git a/keyboards/gl516/j73gl/j73gl.c b/keyboards/gl516/j73gl/j73gl.c
new file mode 100644
index 00000000000..483b0058448
--- /dev/null
+++ b/keyboards/gl516/j73gl/j73gl.c
@@ -0,0 +1,55 @@
+/*
+Copyright 2021 Salicylic_Acid
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "j73gl.h"
+
+#ifdef RGB_MATRIX_ENABLE
+    led_config_t g_led_config = { {
+    // Key Matrix to LED Index
+        { 67,66,60,59,50,49,40,39 },
+        {  68,65,61,58,51,46,48,41 },
+        {   69,64,62,57,52,45,47,42 },
+        {     70,63,56,53,46,43,36,33 },
+        {  71, 72, 55, 54, 45,44,35,34 },
+        { 30,29,20,19,10, 9, 8, 0 },
+        {  38,31,28,21,18,11,   1 },
+        {   37,32,27,22,17,12,7,2 },
+        {     26,23,16,  13,  6,3 },
+        {      25, 24, 15, 14,5,4 }
+    }, {
+    // LED Index to Physical Position
+        { 224,   0 }, { 224,  16 }, { 224,  32 }, { 224,  48 }, { 224,  64 },{ 209,  64 }, { 209,  48 }, { 206,  24 }, { 209,   0 }, { 194,   0 },
+        { 179,   0 }, { 188,  16 }, { 191,  32 }, { 189,  48 }, { 194,  64 },{ 171,  64 }, { 169,  48 }, { 176,  32 }, { 173,  16 }, { 165,   0 },
+        { 150,   0 }, { 156,  16 }, { 161,  32 }, { 154,  48 }, { 152,  64 },{ 135,  64 }, { 139,  48 }, { 146,  32 }, { 143,  16 }, { 135,   0 },
+        { 120,   0 }, { 128,  16 }, { 131,  32 }, { 124,  48 }, { 118,  64 },{ 101,  64 }, { 109,  48 }, { 116,  32 }, { 113,  16 }, { 105,   0 },
+        {  90,   0 }, {  98,  16 }, { 101,  32 }, {  94,  48 }, {  86,  64 },{  69,  64 }, {  79,  48 }, {  86,  32 }, {  83,  16 }, {  75,   0 },
+        {  60,   0 }, {  68,  16 }, {  71,  32 }, {  64,  48 }, {  53,  64 },{  36,  64 }, {  49,  48 }, {  56,  32 }, {  53,  16 }, {  45,   0 },
+        {  30,   0 }, {  38,  16 }, {  41,  32 }, {  34,  48 }, {  26,  32 },{  23,  16 }, {  15,  48 }, {   0,   0 }, {  11,  16 }, {  13,  32 },
+        {  17,  48 }, {  2,   64 }, {  19,  64 }
+    }, {
+    // LED Index to Flag
+        4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+        4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+        4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+        4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+        4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+        4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+        4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
+        4, 4, 4
+} };
+#endif
+
diff --git a/keyboards/gl516/j73gl/j73gl.h b/keyboards/gl516/j73gl/j73gl.h
new file mode 100644
index 00000000000..ad4821461ae
--- /dev/null
+++ b/keyboards/gl516/j73gl/j73gl.h
@@ -0,0 +1,40 @@
+/*
+Copyright 2021 Salicylic_Acid
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "quantum.h"
+
+#define LAYOUT( \
+    L00, L01, L02, L03, L04, L05, L06, R00, R01, R02, R03, R04, R05, R06, R16, R07, \
+    L10, L11, L12, L13, L14, L15, L16, R10, R11, R12, R13, R14, R15,           R17, \
+    L20, L21, L22, L23, L24, L25, L26, R20, R21, R22, R23, R24, R25,    R26,   R27, \
+    L30,      L31, L32, L33, L34, L35, L36, R30, R31, R32, R33,      R35, R36, R37, \
+    L40,  L41,  L42, L43,  L44, L45,  L46, R40, R41, R42,  R43,      R45, R46, R47  \
+  ) \
+  { \
+    { L00,   L01,   L02,   L03,   L04,   L05,   L06, KC_NO }, \
+    { L10,   L11,   L12,   L13,   L14,   L15,   L16, KC_NO }, \
+    { L20,   L21,   L22,   L23,   L24,   L25,   L26, KC_NO }, \
+    { L30,   L31,   L32,   L33,   L34,   L35,   L36, KC_NO }, \
+    { L40,   L41,   L42,   L43,   L44,   L45,   L46, KC_NO }, \
+    { R00,   R01,   R02,   R03,   R04,   R05,   R06,   R07 }, \
+    { R10,   R11,   R12,   R13,   R14,   R15,   R16,   R17 }, \
+    { R20,   R21,   R22,   R23,   R24,   R25,   R26,   R27 }, \
+    { R30,   R31,   R32,   R33, KC_NO,   R35,   R36,   R37 }, \
+    { R40,   R41,   R42,   R43, KC_NO,   R45,   R46,   R47 }  \
+  }
diff --git a/keyboards/gl516/j73gl/keymaps/default/keymap.c b/keyboards/gl516/j73gl/keymaps/default/keymap.c
new file mode 100644
index 00000000000..846df7d2b7a
--- /dev/null
+++ b/keyboards/gl516/j73gl/keymaps/default/keymap.c
@@ -0,0 +1,57 @@
+/*
+Copyright 2021 Salicylic_Acid
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include QMK_KEYBOARD_H
+#include "keymap_jp.h"
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+enum layer_number {
+  _QWERTY = 0,
+  _FN,
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [_QWERTY] = LAYOUT(
+  //,-----------------------------------------------------+--------------------------------------------------------------------------------.
+       KC_ESC,    KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0, JP_MINS, JP_CIRC,  JP_YEN, KC_BSPC, KC_HOME,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+       KC_TAB,    KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,   JP_AT, JP_LBRC,           KC_END,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+LT(_FN,JP_ZKHK),  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L, JP_SCLN, JP_COLN, JP_RBRC,  KC_ENT, KC_PGUP,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      KC_LSFT,    KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M, KC_COMM,  KC_DOT, KC_SLSH,  RSFT_T(JP_BSLS),   KC_UP, KC_PGDN,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+     KC_LCTL, KC_LGUI, KC_LALT, JP_MHEN,  KC_SPC,  KC_SPC,  KC_SPC,  KC_SPC, JP_HENK, JP_KANA,  KC_APP,          KC_LEFT, KC_DOWN, KC_RGHT
+  //|-----------------------------------------------------+--------------------------------------------------------------------------------'
+  ),
+  [_FN] = LAYOUT(
+  //,-----------------------------------------------------+--------------------------------------------------------------------------------.
+        RESET,   KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,  KC_F10,  KC_F11,  KC_F12, _______,  KC_DEL, KC_PSCR,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,           KC_INS,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, RGB_TOG, RGB_MOD, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, RGB_VAD, RGB_VAI, RGB_HUD, RGB_HUI, RGB_SAD, RGB_SAI, _______, _______, _______, _______,          _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______ 
+  //|-----------------------------------------------------+--------------------------------------------------------------------------------'
+  )
+};
+
diff --git a/keyboards/gl516/j73gl/keymaps/via/keymap.c b/keyboards/gl516/j73gl/keymaps/via/keymap.c
new file mode 100644
index 00000000000..3e8fba928d1
--- /dev/null
+++ b/keyboards/gl516/j73gl/keymaps/via/keymap.c
@@ -0,0 +1,74 @@
+/*
+Copyright 2021 Salicylic_Acid
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include QMK_KEYBOARD_H
+#include "keymap_jp.h"
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [0] = LAYOUT(
+  //,-----------------------------------------------------+--------------------------------------------------------------------------------.
+       KC_ESC,    KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0, JP_MINS, JP_CIRC,  JP_YEN, KC_BSPC, KC_HOME,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+       KC_TAB,    KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,   JP_AT, JP_LBRC,           KC_END,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+LT(1,JP_ZKHK),    KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L, JP_SCLN, JP_COLN, JP_RBRC,  KC_ENT, KC_PGUP,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      KC_LSFT,    KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M, KC_COMM,  KC_DOT, KC_SLSH,  RSFT_T(JP_BSLS),   KC_UP, KC_PGDN,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+     KC_LCTL, KC_LGUI, KC_LALT, JP_MHEN,  KC_SPC,  KC_SPC,  KC_SPC,  KC_SPC, JP_HENK, JP_KANA,  KC_APP,          KC_LEFT, KC_DOWN, KC_RGHT
+  //|-----------------------------------------------------+--------------------------------------------------------------------------------'
+  ),
+  [1] = LAYOUT(
+  //,-----------------------------------------------------+--------------------------------------------------------------------------------.
+        RESET,   KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,  KC_F10,  KC_F11,  KC_F12, _______,  KC_DEL, KC_PSCR,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,           KC_INS,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, RGB_TOG, RGB_MOD, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, RGB_VAD, RGB_VAI, RGB_HUD, RGB_HUI, RGB_SAD, RGB_SAI, _______, _______, _______, _______,          _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______ 
+  //|-----------------------------------------------------+--------------------------------------------------------------------------------'
+  ),
+  [2] = LAYOUT(
+  //,-----------------------------------------------------+--------------------------------------------------------------------------------.
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______ 
+  //|-----------------------------------------------------+--------------------------------------------------------------------------------'
+  ),
+  [3] = LAYOUT(
+  //,-----------------------------------------------------+--------------------------------------------------------------------------------.
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______ 
+  //|-----------------------------------------------------+--------------------------------------------------------------------------------'
+  )
+};
diff --git a/keyboards/gl516/j73gl/keymaps/via/rules.mk b/keyboards/gl516/j73gl/keymaps/via/rules.mk
new file mode 100644
index 00000000000..036bd6d1c3e
--- /dev/null
+++ b/keyboards/gl516/j73gl/keymaps/via/rules.mk
@@ -0,0 +1 @@
+VIA_ENABLE = yes
\ No newline at end of file
diff --git a/keyboards/gl516/j73gl/keymaps/via_rgb_matrix/config.h b/keyboards/gl516/j73gl/keymaps/via_rgb_matrix/config.h
new file mode 100644
index 00000000000..d2e1d208932
--- /dev/null
+++ b/keyboards/gl516/j73gl/keymaps/via_rgb_matrix/config.h
@@ -0,0 +1,43 @@
+/* Copyright 2018 Salicylic_acid3
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+/* Select hand configuration */
+
+#define TAPPING_FORCE_HOLD
+#define TAPPING_TERM 180
+
+#ifdef RGBLED_NUM
+  #undef RGBLED_NUM
+#endif
+
+#define DRIVER_LED_TOTAL 73
+
+#ifdef RGB_MATRIX_ENABLE
+#    define RGB_MATRIX_KEYPRESSES  // reacts to keypresses
+// #   define RGB_MATRIX_KEYRELEASES // reacts to keyreleases (instead of keypresses)
+// #   define RGB_DISABLE_AFTER_TIMEOUT 0 // number of ticks to wait until disabling effects
+// #    define RGB_DISABLE_WHEN_USB_SUSPENDED  // turn off effects when suspended
+// #   define RGB_MATRIX_LED_PROCESS_LIMIT (DRIVER_LED_TOTAL + 4) / 5 // limits the number of LEDs to process in an animation per task run (increases keyboard responsiveness)
+// #   define RGB_MATRIX_LED_FLUSH_LIMIT 16 // limits in milliseconds how frequently an animation will update the LEDs. 16 (16ms) is equivalent to limiting to 60fps (increases keyboard responsiveness)
+// #   define RGB_MATRIX_MAXIMUM_BRIGHTNESS 150  // limits maximum brightness of LEDs to 200 out of 255. If not defined maximum brightness is set to 255
+#    define RGB_MATRIX_HUE_STEP 8
+#    define RGB_MATRIX_SAT_STEP 8
+#    define RGB_MATRIX_MAXIMUM_BRIGHTNESS 150
+#    define RGB_MATRIX_VAL_STEP 5
+#    define RGB_MATRIX_SPD_STEP 10
+#endif
diff --git a/keyboards/gl516/j73gl/keymaps/via_rgb_matrix/keymap.c b/keyboards/gl516/j73gl/keymaps/via_rgb_matrix/keymap.c
new file mode 100644
index 00000000000..3e8fba928d1
--- /dev/null
+++ b/keyboards/gl516/j73gl/keymaps/via_rgb_matrix/keymap.c
@@ -0,0 +1,74 @@
+/*
+Copyright 2021 Salicylic_Acid
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include QMK_KEYBOARD_H
+#include "keymap_jp.h"
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [0] = LAYOUT(
+  //,-----------------------------------------------------+--------------------------------------------------------------------------------.
+       KC_ESC,    KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0, JP_MINS, JP_CIRC,  JP_YEN, KC_BSPC, KC_HOME,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+       KC_TAB,    KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,   JP_AT, JP_LBRC,           KC_END,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+LT(1,JP_ZKHK),    KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L, JP_SCLN, JP_COLN, JP_RBRC,  KC_ENT, KC_PGUP,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      KC_LSFT,    KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M, KC_COMM,  KC_DOT, KC_SLSH,  RSFT_T(JP_BSLS),   KC_UP, KC_PGDN,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+     KC_LCTL, KC_LGUI, KC_LALT, JP_MHEN,  KC_SPC,  KC_SPC,  KC_SPC,  KC_SPC, JP_HENK, JP_KANA,  KC_APP,          KC_LEFT, KC_DOWN, KC_RGHT
+  //|-----------------------------------------------------+--------------------------------------------------------------------------------'
+  ),
+  [1] = LAYOUT(
+  //,-----------------------------------------------------+--------------------------------------------------------------------------------.
+        RESET,   KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,  KC_F10,  KC_F11,  KC_F12, _______,  KC_DEL, KC_PSCR,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,           KC_INS,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, RGB_TOG, RGB_MOD, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, RGB_VAD, RGB_VAI, RGB_HUD, RGB_HUI, RGB_SAD, RGB_SAI, _______, _______, _______, _______,          _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______ 
+  //|-----------------------------------------------------+--------------------------------------------------------------------------------'
+  ),
+  [2] = LAYOUT(
+  //,-----------------------------------------------------+--------------------------------------------------------------------------------.
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______ 
+  //|-----------------------------------------------------+--------------------------------------------------------------------------------'
+  ),
+  [3] = LAYOUT(
+  //,-----------------------------------------------------+--------------------------------------------------------------------------------.
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______ 
+  //|-----------------------------------------------------+--------------------------------------------------------------------------------'
+  )
+};
diff --git a/keyboards/gl516/j73gl/keymaps/via_rgb_matrix/rules.mk b/keyboards/gl516/j73gl/keymaps/via_rgb_matrix/rules.mk
new file mode 100644
index 00000000000..294015d80b8
--- /dev/null
+++ b/keyboards/gl516/j73gl/keymaps/via_rgb_matrix/rules.mk
@@ -0,0 +1,7 @@
+RGBLIGHT_ENABLE = no
+RGB_MATRIX_ENABLE = yes
+RGB_MATRIX_DRIVER = WS2812
+VIA_ENABLE = yes
+LTO_ENABLE = yes
+SPACE_CADET_ENABLE = no
+MAGIC_ENABLE = no
diff --git a/keyboards/gl516/j73gl/matrix.c b/keyboards/gl516/j73gl/matrix.c
new file mode 100644
index 00000000000..1a97fdfd614
--- /dev/null
+++ b/keyboards/gl516/j73gl/matrix.c
@@ -0,0 +1,158 @@
+/*
+Copyright 2012-2018 Jun Wako, Jack Humbert, Yiancar
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include "matrix.h"
+#include "quantum.h"
+
+static const pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
+
+static void select_row(uint8_t row)
+{
+    setPinOutput(row_pins[row]);
+    writePinLow(row_pins[row]);
+}
+
+static void unselect_row(uint8_t row)
+{
+    setPinInputHigh(row_pins[row]);
+}
+
+static void unselect_rows(void)
+{
+    for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        setPinInputHigh(row_pins[x]);
+    }
+}
+
+static void select_col(uint8_t col)
+{
+    setPinOutput(col_pins[col]);
+    writePinLow(col_pins[col]);
+}
+
+static void unselect_col(uint8_t col)
+{
+    setPinInputHigh(col_pins[col]);
+}
+
+static void unselect_cols(void)
+{
+    for(uint8_t x = 0; x < MATRIX_COLS; x++) {
+        setPinInputHigh(col_pins[x]);
+    }
+}
+
+static void init_pins(void) {
+  unselect_rows();
+  unselect_cols();
+  for (uint8_t x = 0; x < MATRIX_COLS; x++) {
+    setPinInputHigh(col_pins[x]);
+  }
+  for (uint8_t x = 0; x < MATRIX_ROWS; x++) {
+    setPinInputHigh(row_pins[x]);
+  }
+}
+
+static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
+{
+    // Store last value of row prior to reading
+    matrix_row_t last_row_value = current_matrix[current_row];
+
+    // Clear data in matrix row
+    current_matrix[current_row] = 0;
+
+    // Select row and wait for row selecton to stabilize
+    select_row(current_row);
+    matrix_io_delay();
+
+    // For each col...
+    for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
+
+        // Select the col pin to read (active low)
+        uint8_t pin_state = readPin(col_pins[col_index]);
+
+        // Populate the matrix row with the state of the col pin
+        current_matrix[current_row] |=  pin_state ? 0 : (MATRIX_ROW_SHIFTER << col_index);
+    }
+
+    // Unselect row
+    unselect_row(current_row);
+
+    return (last_row_value != current_matrix[current_row]);
+}
+
+static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
+{
+    bool matrix_changed = false;
+
+    // Select col and wait for col selecton to stabilize
+    select_col(current_col);
+    matrix_io_delay();
+
+    // For each row...
+    for(uint8_t row_index = 0; row_index < MATRIX_ROWS/2; row_index++)
+    {
+        uint8_t tmp = row_index + MATRIX_ROWS/2;
+        // Store last value of row prior to reading
+        matrix_row_t last_row_value = current_matrix[tmp];
+
+        // Check row pin state
+        if (readPin(row_pins[row_index]) == 0)
+        {
+            // Pin LO, set col bit
+            current_matrix[tmp] |= (MATRIX_ROW_SHIFTER << current_col);
+        }
+        else
+        {
+            // Pin HI, clear col bit
+            current_matrix[tmp] &= ~(MATRIX_ROW_SHIFTER << current_col);
+        }
+
+        // Determine if the matrix changed state
+        if ((last_row_value != current_matrix[tmp]) && !(matrix_changed))
+        {
+            matrix_changed = true;
+        }
+    }
+
+    // Unselect col
+    unselect_col(current_col);
+
+    return matrix_changed;
+}
+
+void matrix_init_custom(void) {
+    // initialize key pins
+    init_pins();
+}
+
+bool matrix_scan_custom(matrix_row_t current_matrix[])
+{
+  bool changed = false;
+
+  // Set row, read cols
+  for (uint8_t current_row = 0; current_row < MATRIX_ROWS / 2; current_row++) {
+    changed |= read_cols_on_row(current_matrix, current_row);
+  }
+  //else
+  // Set col, read rows
+  for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
+    changed |= read_rows_on_col(current_matrix, current_col);
+  }
+  
+  return changed;
+}
diff --git a/keyboards/gl516/j73gl/readme.md b/keyboards/gl516/j73gl/readme.md
new file mode 100644
index 00000000000..b6f1ebdc243
--- /dev/null
+++ b/keyboards/gl516/j73gl/readme.md
@@ -0,0 +1,27 @@
+# j73gl
+
+![j73gl](https://cdn-ak.f.st-hatena.com/images/fotolife/S/Salicylic_acid3/20210911/20210911015520.png)
+
+This is 73 keys Japanese style keyboard.
+Use the GL516 case.
+
+* Keyboard Maintainer: [Salicylic_acid3](https://github.com/Salicylic-acid3)
+* Hardware Supported: j73gl PCB, Pro Micro
+* Hardware Availability: [PCB & Case Data](https://github.com/Salicylic-acid3/GL516_Exemple), [yushakobo Shop](https://shop.yushakobo.jp/products/3342)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make gl516/j73gl:default
+
+## Bootloader
+
+Enter the bootloader in 3 ways:
+
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard
+* **Physical reset button**: Briefly press the button on the back of the PCB - some may have pads you must short instead
+* **Keycode in layout**: Press the key mapped to `RESET` if it is available
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
+
+[Build guide](https://salicylic-acid3.hatenablog.com/entry/a52gl-j73gl-build-guide)
+
diff --git a/keyboards/gl516/j73gl/rules.mk b/keyboards/gl516/j73gl/rules.mk
new file mode 100644
index 00000000000..a7521a0e408
--- /dev/null
+++ b/keyboards/gl516/j73gl/rules.mk
@@ -0,0 +1,22 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+BOOTLOADER = caterina
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = yes      # Enable Bootmagic Lite
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = no         # Commands for debug and configuration
+NKRO_ENABLE = no            # Enable N-Key Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = yes       # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output
+
+CUSTOM_MATRIX = lite
+
+SRC += matrix.c
\ No newline at end of file
diff --git a/keyboards/gl516/n51gl/config.h b/keyboards/gl516/n51gl/config.h
new file mode 100644
index 00000000000..ea50fcfa1ab
--- /dev/null
+++ b/keyboards/gl516/n51gl/config.h
@@ -0,0 +1,67 @@
+/*
+Copyright 2021 Salicylic_Acid
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0x04D8
+#define PRODUCT_ID      0xE8CF
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    Salicylic_Acid
+#define PRODUCT         n51gl
+
+/* key matrix size */
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 7
+
+// wiring of each half
+#define MATRIX_ROW_PINS { D1, D0, D4, C6 }
+#define MATRIX_COL_PINS { F4, F5, F6, F7, B1, B3, B2 }
+#define UNUSED_PINS
+
+#define ENCODERS_PAD_A { D7 }
+#define ENCODERS_PAD_B { E6 }
+#define ENCODER_RESOLUTION 3
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCE 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* ws2812 RGB LED */
+#define RGB_DI_PIN D3
+
+#ifndef RGBLED_NUM
+  #define RGBLED_NUM 15
+#endif
+
+#define RGBLIGHT_EFFECT_BREATHING
+#define RGBLIGHT_EFFECT_RAINBOW_MOOD
+#define RGBLIGHT_EFFECT_RAINBOW_SWIRL
+#define RGBLIGHT_EFFECT_SNAKE
+#define RGBLIGHT_EFFECT_KNIGHT
+#define RGBLIGHT_EFFECT_CHRISTMAS
+#define RGBLIGHT_EFFECT_STATIC_GRADIENT
+#define RGBLIGHT_EFFECT_RGB_TEST
+#define RGBLIGHT_EFFECT_ALTERNATING
+#define RGBLIGHT_EFFECT_TWINKLE
+
diff --git a/keyboards/gl516/n51gl/info.json b/keyboards/gl516/n51gl/info.json
new file mode 100644
index 00000000000..eb8d639825b
--- /dev/null
+++ b/keyboards/gl516/n51gl/info.json
@@ -0,0 +1,63 @@
+{
+    "keyboard_name": "n51gl", 
+    "url": "https://salicylic-acid3.hatenablog.com/", 
+    "maintainer": "Salicylic_acid3", 
+    "layouts": {
+        "LAYOUT": {
+            "layout": [
+                {"label":"0,0", "x":0, "y":0},
+                {"label":"0,1", "x":1.25, "y":0},
+                {"label":"4,0", "x":8.25, "y":0},
+                {"label":"4,1", "x":9.25, "y":0},
+                {"label":"4,2", "x":10.25, "y":0},
+                {"label":"4,3", "x":11.25, "y":0},
+                {"label":"4,4", "x":12.25, "y":0},
+                {"label":"4,5", "x":13.25, "y":0},
+                {"label":"4,6", "x":14.25, "y":0},
+                {"label":"1,1", "x":0.25, "y":1, "w":1.75},
+                {"label":"1,2", "x":2, "y":1},
+                {"label":"5,0", "x":8.5, "y":1},
+                {"label":"5,1", "x":9.5, "y":1},
+                {"label":"5,2", "x":10.5, "y":1},
+                {"label":"5,3", "x":11.5, "y":1},
+                {"label":"5,4", "x":12.5, "y":1},
+                {"label":"5,5", "x":13.5, "y":1},
+                {"label":"5,6", "x":14.5, "y":1},
+                {"label":"2,1", "x":0, "y":2, "w":1.75},
+                {"label":"2,2", "x":1.75, "y":2},
+                {"label":"2,0", "x":7.25, "y":2},
+                {"label":"6,0", "x":8.75, "y":2},
+                {"label":"6,1", "x":9.75, "y":2},
+                {"label":"6,2", "x":10.75, "y":2},
+                {"label":"6,3", "x":11.75, "y":2},
+                {"label":"6,4", "x":12.75, "y":2},
+                {"label":"6,5", "x":13.75, "y":2},
+                {"label":"6,6", "x":14.75, "y":2},
+                {"label":"3,1", "x":0.25, "y":3, "w":1.25},
+                {"label":"3,2", "x":1.5, "y":3, "w":1.25},
+                {"label":"7,0", "x":8.5, "y":3},
+                {"label":"7,1", "x":9.5, "y":3, "w":1.25},
+                {"label":"7,2", "x":10.75, "y":3},
+                {"label":"7,4", "x":12.75, "y":3},
+                {"label":"7,5", "x":13.75, "y":3},
+                {"label":"7,6", "x":14.75, "y":3},
+                {"label":"0,2", "x":-0.75, "y":4},
+                {"label":"0,3", "x":0.25, "y":4},
+                {"label":"0,4", "x":1.25, "y":4},
+                {"label":"0,5", "x":2.25, "y":4},
+                {"label":"0,6", "x":3.25, "y":4},
+                {"label":"1,3", "x":0, "y":5},
+                {"label":"1,4", "x":1, "y":5},
+                {"label":"1,5", "x":2, "y":5},
+                {"label":"1,6", "x":3, "y":5},
+                {"label":"2,3", "x":-0.25, "y":6},
+                {"label":"2,4", "x":0.75, "y":6},
+                {"label":"2,5", "x":1.75, "y":6},
+                {"label":"2,6", "x":2.75, "y":6},
+                {"label":"3,4", "x":0.75, "y":7},
+                {"label":"3,5", "x":1.75, "y":7, "w":1.25},
+                {"label":"3,6", "x":3, "y":7}
+            ]
+        }
+    }
+}
diff --git a/keyboards/gl516/n51gl/keymaps/default/keymap.c b/keyboards/gl516/n51gl/keymaps/default/keymap.c
new file mode 100644
index 00000000000..469626d8515
--- /dev/null
+++ b/keyboards/gl516/n51gl/keymaps/default/keymap.c
@@ -0,0 +1,60 @@
+/*
+Copyright 2021 Salicylic_Acid
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include QMK_KEYBOARD_H
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+enum layer_number {
+  _QWERTY = 0,
+  _FN,
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [_QWERTY] = LAYOUT(
+  //,--------------------------------------------------------------|        |--------------------------------------------------------------.
+       KC_ESC,  KC_TAB,    KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,             KC_Y,    KC_U,    KC_I,    KC_O,    KC_P, KC_LBRC, KC_BSPC,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+       LT(_FN,KC_CAPS),    KC_A,    KC_S,    KC_D,    KC_F,    KC_G,             KC_H,    KC_J,    KC_K,    KC_L, KC_SCLN, KC_QUOT,  KC_ENT,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               KC_LSFT,    KC_Z,    KC_X,    KC_C,    KC_V,    KC_B, KC_MUTE,    KC_N,    KC_M, KC_COMM,  KC_DOT, KC_SLSH,   KC_UP, KC_RSFT,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+              KC_LCTL, KC_LGUI,          KC_LALT,  KC_SPC,  KC_SPC,           KC_SPC,  KC_SPC, KC_LALT,          KC_LEFT, KC_DOWN, KC_RGHT
+  //|--------------------------------------------------------------|        |--------------------------------------------------------------'
+  ),
+  [_FN] = LAYOUT(
+  //,--------------------------------------------------------------|        |--------------------------------------------------------------.
+      _______,   RESET,   KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,            KC_F6,   KC_F7,   KC_F8,   KC_F9,  KC_F10,  KC_F11,  KC_F12,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               _______,    KC_1,    KC_2,    KC_3,    KC_4,    KC_5,             KC_6,    KC_7,    KC_8,    KC_9,    KC_0, _______, _______, 
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               _______, _______,         _______, _______, _______,          _______, _______, _______,          _______, _______, _______
+  //|--------------------------------------------------------------|        |--------------------------------------------------------------'
+  )
+};
+
+bool encoder_update_user(uint8_t index, bool clockwise) {
+    if (clockwise) {
+        tap_code16(KC_VOLD);
+    } else {
+        tap_code16(KC_VOLU);
+    }
+    return true;
+}
diff --git a/keyboards/gl516/n51gl/keymaps/salicylic/config.h b/keyboards/gl516/n51gl/keymaps/salicylic/config.h
new file mode 100644
index 00000000000..fd96baa819b
--- /dev/null
+++ b/keyboards/gl516/n51gl/keymaps/salicylic/config.h
@@ -0,0 +1,22 @@
+/* Copyright 2021 Salicylic_acid3
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+/* Select hand configuration */
+
+#define TAPPING_FORCE_HOLD
+#define TAPPING_TERM 180
diff --git a/keyboards/gl516/n51gl/keymaps/salicylic/keymap.c b/keyboards/gl516/n51gl/keymaps/salicylic/keymap.c
new file mode 100644
index 00000000000..819ac94e37b
--- /dev/null
+++ b/keyboards/gl516/n51gl/keymaps/salicylic/keymap.c
@@ -0,0 +1,117 @@
+/*
+Copyright 2021 Salicylic_Acid
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include QMK_KEYBOARD_H
+#include "keymap_jp.h"
+
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+enum layer_number {
+  _QWERTY = 0,
+  _LOWER,
+  _RAISE,
+  _ADJUST,
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [_QWERTY] = LAYOUT_rotary_layer(
+  //,--------------------------------------------------------------|        |--------------------------------------------------------------.
+       KC_ESC,  KC_TAB,    KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,             KC_Y,    KC_U,    KC_I,    KC_O,    KC_P, KC_LBRC, KC_BSPC,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+              KC_LCTL,    KC_A,    KC_S,    KC_D,    KC_F,    KC_G, KC_VOLU,    KC_H,    KC_J,    KC_K,    KC_L, JP_MINS, JP_BSLS,  KC_ENT,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               KC_LSFT,    KC_Z,    KC_X,    KC_C,    KC_V,    KC_B, KC_MUTE,    KC_N,    KC_M, KC_COMM,  KC_DOT, JP_SLSH,   KC_UP, KC_RSFT,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+         JP_ZKHK, KC_LALT,LGUI_T(JP_MHEN),LT(_LOWER,KC_ENT),KC_BSPC, KC_VOLD, KC_DEL,LT(_RAISE,KC_SPC),ALT_T(JP_HENK),KC_LEFT, KC_DOWN, KC_RGHT
+  //|--------------------------------------------------------------|        |--------------------------------------------------------------'
+  ),
+  [_LOWER] = LAYOUT_rotary_layer(
+  //,--------------------------------------------------------------|        |--------------------------------------------------------------.
+      _______, _______, JP_EXLM, JP_QUES, JP_LBRC, JP_RBRC, JP_TILD,             KC_6,    KC_7,    KC_8,    KC_9, JP_ASTR, JP_SLSH, KC_BSPC,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               JP_QUOT, JP_HASH,  JP_DQT, JP_LPRN, JP_RPRN,   JP_AT, KC_WH_U, XXXXXXX,    KC_4,    KC_5,    KC_6, JP_MINS,  JP_EQL, _______,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               JP_CIRC, JP_PERC, JP_AMPR, JP_SCLN, JP_COLN, JP_PIPE, KC_BTN3,    KC_0,    KC_1,    KC_2,    KC_3, JP_PLUS, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               _______, _______,       JP_MHEN, MO(_LOWER), _______, KC_WH_D, _______, MO(_RAISE), JP_DOT,        _______, _______, _______
+  //|--------------------------------------------------------------|        |--------------------------------------------------------------'
+  ),
+
+  [_RAISE] = LAYOUT_rotary_layer(
+  //,--------------------------------------------------------------|        |--------------------------------------------------------------.
+      _______, _______,    KC_1,    KC_2,    KC_3,    KC_4,    KC_5,             KC_6, XXXXXXX,   KC_UP, XXXXXXX, KC_PGUP,LALT(KC_PSCR),KC_PSCR,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+        LCTL_T(KC_F11),   KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5, KC_WH_L, XXXXXXX, KC_LEFT, KC_DOWN, KC_RGHT, XXXXXXX, XXXXXXX, _______,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               KC_LSFT,   KC_F6,   KC_F7,   KC_F8,   KC_F9,  KC_F10, _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_PGDN, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               _______, _______,          _______, _______, _______, KC_WH_R, _______, _______, JP_HENK,          _______, _______, _______
+  //|--------------------------------------------------------------|        |--------------------------------------------------------------'
+  ),
+
+  [_ADJUST] = LAYOUT_rotary_layer(
+  //,--------------------------------------------------------------|        |--------------------------------------------------------------.
+        RESET,  KC_TAB, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,          XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,LALT(KC_PSCR),KC_PSCR,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+              KC_LCTL, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, RGB_MOD, RGB_TOG, RGB_MOD, RGB_SAD, RGB_SAI, XXXXXXX, XXXXXXX, _______,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+         SFT_T(KC_F12), XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, RGB_TOG, RGB_VAD, RGB_VAI, RGB_HUD, RGB_HUI, XXXXXXX, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               _______, _______,          _______, _______, _______,RGB_RMOD, _______, _______, _______,          _______, _______, _______
+  //|--------------------------------------------------------------|        |--------------------------------------------------------------'
+  )
+};
+
+//A description for expressing the layer position in LED mode.
+layer_state_t layer_state_set_user(layer_state_t state) {
+  state = update_tri_layer_state(state, _RAISE, _LOWER, _ADJUST);
+#ifdef RGBLIGHT_ENABLE
+    switch (get_highest_layer(state)) {
+    case _LOWER:
+      rgblight_sethsv_at(HSV_BLUE, 0);
+      break;
+    case _RAISE:
+      rgblight_sethsv_at(HSV_RED, 0);
+      break;
+    case _ADJUST:
+      rgblight_sethsv_at(HSV_PURPLE, 0);
+      break;
+    default: //  for any other layers, or the default layer
+      rgblight_sethsv_at( 0, 0, 0, 0);
+      break;
+    }
+    rgblight_set_effect_range( 1, 14);
+#endif
+return state;
+}
+
+bool encoder_update_user(uint8_t index, bool clockwise) {
+    keypos_t key;
+    if (clockwise) {
+        key.row = 3;
+        key.col = 0;
+    } else {
+        key.row = 1;
+        key.col = 0;
+    }
+    action_exec((keyevent_t){.key = key, .pressed = true, .time = (timer_read() | 1)});
+    action_exec((keyevent_t){.key = key, .pressed = false, .time = (timer_read() | 1)});
+    return true;
+}
diff --git a/keyboards/gl516/n51gl/keymaps/via/config.h b/keyboards/gl516/n51gl/keymaps/via/config.h
new file mode 100644
index 00000000000..fd96baa819b
--- /dev/null
+++ b/keyboards/gl516/n51gl/keymaps/via/config.h
@@ -0,0 +1,22 @@
+/* Copyright 2021 Salicylic_acid3
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+/* Select hand configuration */
+
+#define TAPPING_FORCE_HOLD
+#define TAPPING_TERM 180
diff --git a/keyboards/gl516/n51gl/keymaps/via/keymap.c b/keyboards/gl516/n51gl/keymaps/via/keymap.c
new file mode 100644
index 00000000000..3ad85edcba7
--- /dev/null
+++ b/keyboards/gl516/n51gl/keymaps/via/keymap.c
@@ -0,0 +1,102 @@
+/*
+Copyright 2021 Salicylic_Acid
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [0] = LAYOUT_rotary_layer(
+  //,--------------------------------------------------------------|        |--------------------------------------------------------------.
+       KC_ESC,  KC_TAB,    KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,             KC_Y,    KC_U,    KC_I,    KC_O,    KC_P, KC_LBRC, KC_BSPC,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+         LT(1,KC_CAPS),    KC_A,    KC_S,    KC_D,    KC_F,    KC_G, KC_VOLU,    KC_H,    KC_J,    KC_K,    KC_L, KC_SCLN, KC_QUOT,  KC_ENT,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               KC_LSFT,    KC_Z,    KC_X,    KC_C,    KC_V,    KC_B, KC_MUTE,    KC_N,    KC_M, KC_COMM,  KC_DOT, KC_SLSH,   KC_UP, KC_RSFT,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+              KC_LCTL, KC_LGUI,          KC_LALT,  KC_SPC,  KC_SPC, KC_VOLD,  KC_SPC,  KC_SPC, KC_LALT,          KC_LEFT, KC_DOWN, KC_RGHT
+  //|--------------------------------------------------------------|        |--------------------------------------------------------------'
+  ),
+  [1] = LAYOUT_rotary_layer(
+  //,--------------------------------------------------------------|        |--------------------------------------------------------------.
+      _______,   RESET,   KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,            KC_F6,   KC_F7,   KC_F8,   KC_F9,  KC_F10,  KC_F11,  KC_F12,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               _______,    KC_1,    KC_2,    KC_3,    KC_4,    KC_5, _______,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0, _______, _______, 
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               _______, _______,          _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______
+  //|--------------------------------------------------------------|        |--------------------------------------------------------------'
+  ),
+  [2] = LAYOUT_rotary_layer(
+  //,--------------------------------------------------------------|        |--------------------------------------------------------------.
+      XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,          XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               XXXXXXX, XXXXXXX,          XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,          XXXXXXX, XXXXXXX, XXXXXXX
+  //|--------------------------------------------------------------|        |--------------------------------------------------------------'
+  ),
+  [3] = LAYOUT_rotary_layer(
+  //,--------------------------------------------------------------|        |--------------------------------------------------------------.
+      XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,          XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+  //|--------+--------+--------+--------+--------+--------+--------|        |--------+--------+--------+--------+--------+--------+--------|
+               XXXXXXX, XXXXXXX,          XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,          XXXXXXX, XXXXXXX, XXXXXXX
+  //|--------------------------------------------------------------|        |--------------------------------------------------------------'
+  )
+};
+
+//A description for expressing the layer position in LED mode.
+layer_state_t layer_state_set_user(layer_state_t state) {
+  state = update_tri_layer_state(state, 2, 1, 3);
+#ifdef RGBLIGHT_ENABLE
+    switch (get_highest_layer(state)) {
+    case 1:
+      rgblight_sethsv_at(HSV_BLUE, 0);
+      break;
+    case 2:
+      rgblight_sethsv_at(HSV_RED, 0);
+      break;
+    case 3:
+      rgblight_sethsv_at(HSV_PURPLE, 0);
+      break;
+    default: //  for any other layers, or the default layer
+      rgblight_sethsv_at( 0, 0, 0, 0);
+      break;
+    }
+    rgblight_set_effect_range( 1, 14);
+#endif
+return state;
+}
+
+bool encoder_update_user(uint8_t index, bool clockwise) {
+    keypos_t key;
+    if (clockwise) {
+        key.row = 3;
+        key.col = 0;
+    } else {
+        key.row = 1;
+        key.col = 0;
+    }
+    action_exec((keyevent_t){.key = key, .pressed = true, .time = (timer_read() | 1)});
+    action_exec((keyevent_t){.key = key, .pressed = false, .time = (timer_read() | 1)});
+    return true;
+}
diff --git a/keyboards/gl516/n51gl/keymaps/via/rules.mk b/keyboards/gl516/n51gl/keymaps/via/rules.mk
new file mode 100644
index 00000000000..036bd6d1c3e
--- /dev/null
+++ b/keyboards/gl516/n51gl/keymaps/via/rules.mk
@@ -0,0 +1 @@
+VIA_ENABLE = yes
\ No newline at end of file
diff --git a/keyboards/gl516/n51gl/matrix.c b/keyboards/gl516/n51gl/matrix.c
new file mode 100644
index 00000000000..1a97fdfd614
--- /dev/null
+++ b/keyboards/gl516/n51gl/matrix.c
@@ -0,0 +1,158 @@
+/*
+Copyright 2012-2018 Jun Wako, Jack Humbert, Yiancar
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include "matrix.h"
+#include "quantum.h"
+
+static const pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static const pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
+
+static void select_row(uint8_t row)
+{
+    setPinOutput(row_pins[row]);
+    writePinLow(row_pins[row]);
+}
+
+static void unselect_row(uint8_t row)
+{
+    setPinInputHigh(row_pins[row]);
+}
+
+static void unselect_rows(void)
+{
+    for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        setPinInputHigh(row_pins[x]);
+    }
+}
+
+static void select_col(uint8_t col)
+{
+    setPinOutput(col_pins[col]);
+    writePinLow(col_pins[col]);
+}
+
+static void unselect_col(uint8_t col)
+{
+    setPinInputHigh(col_pins[col]);
+}
+
+static void unselect_cols(void)
+{
+    for(uint8_t x = 0; x < MATRIX_COLS; x++) {
+        setPinInputHigh(col_pins[x]);
+    }
+}
+
+static void init_pins(void) {
+  unselect_rows();
+  unselect_cols();
+  for (uint8_t x = 0; x < MATRIX_COLS; x++) {
+    setPinInputHigh(col_pins[x]);
+  }
+  for (uint8_t x = 0; x < MATRIX_ROWS; x++) {
+    setPinInputHigh(row_pins[x]);
+  }
+}
+
+static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
+{
+    // Store last value of row prior to reading
+    matrix_row_t last_row_value = current_matrix[current_row];
+
+    // Clear data in matrix row
+    current_matrix[current_row] = 0;
+
+    // Select row and wait for row selecton to stabilize
+    select_row(current_row);
+    matrix_io_delay();
+
+    // For each col...
+    for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
+
+        // Select the col pin to read (active low)
+        uint8_t pin_state = readPin(col_pins[col_index]);
+
+        // Populate the matrix row with the state of the col pin
+        current_matrix[current_row] |=  pin_state ? 0 : (MATRIX_ROW_SHIFTER << col_index);
+    }
+
+    // Unselect row
+    unselect_row(current_row);
+
+    return (last_row_value != current_matrix[current_row]);
+}
+
+static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
+{
+    bool matrix_changed = false;
+
+    // Select col and wait for col selecton to stabilize
+    select_col(current_col);
+    matrix_io_delay();
+
+    // For each row...
+    for(uint8_t row_index = 0; row_index < MATRIX_ROWS/2; row_index++)
+    {
+        uint8_t tmp = row_index + MATRIX_ROWS/2;
+        // Store last value of row prior to reading
+        matrix_row_t last_row_value = current_matrix[tmp];
+
+        // Check row pin state
+        if (readPin(row_pins[row_index]) == 0)
+        {
+            // Pin LO, set col bit
+            current_matrix[tmp] |= (MATRIX_ROW_SHIFTER << current_col);
+        }
+        else
+        {
+            // Pin HI, clear col bit
+            current_matrix[tmp] &= ~(MATRIX_ROW_SHIFTER << current_col);
+        }
+
+        // Determine if the matrix changed state
+        if ((last_row_value != current_matrix[tmp]) && !(matrix_changed))
+        {
+            matrix_changed = true;
+        }
+    }
+
+    // Unselect col
+    unselect_col(current_col);
+
+    return matrix_changed;
+}
+
+void matrix_init_custom(void) {
+    // initialize key pins
+    init_pins();
+}
+
+bool matrix_scan_custom(matrix_row_t current_matrix[])
+{
+  bool changed = false;
+
+  // Set row, read cols
+  for (uint8_t current_row = 0; current_row < MATRIX_ROWS / 2; current_row++) {
+    changed |= read_cols_on_row(current_matrix, current_row);
+  }
+  //else
+  // Set col, read rows
+  for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
+    changed |= read_rows_on_col(current_matrix, current_col);
+  }
+  
+  return changed;
+}
diff --git a/keyboards/gl516/n51gl/n51gl.c b/keyboards/gl516/n51gl/n51gl.c
new file mode 100644
index 00000000000..f13d0cd78e6
--- /dev/null
+++ b/keyboards/gl516/n51gl/n51gl.c
@@ -0,0 +1,18 @@
+/*
+Copyright 2021 Salicylic_Acid
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include "n51gl.h"
diff --git a/keyboards/gl516/n51gl/n51gl.h b/keyboards/gl516/n51gl/n51gl.h
new file mode 100644
index 00000000000..6429b78fd0a
--- /dev/null
+++ b/keyboards/gl516/n51gl/n51gl.h
@@ -0,0 +1,54 @@
+/*
+Copyright 2021 Salicylic_Acid
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "quantum.h"
+
+#define LAYOUT( \
+    L00, L01, L02, L03, L04, L05, L06,      R00, R01, R02, R03, R04, R05, R06, \
+         L11, L12, L13, L14, L15, L16,      R10, R11, R12, R13, R14, R15, R16, \
+         L21, L22, L23, L24, L25, L26, L20, R20, R21, R22, R23, R24, R25, R26, \
+         L31, L32,      L34, L35, L36,      R30, R31, R32,      R34, R35, R36  \
+  ) \
+  { \
+    {   L00,   L01,   L02,   L03,   L04,   L05,   L06 }, \
+    { KC_NO,   L11,   L12,   L13,   L14,   L15,   L16 }, \
+    {   L20,   L21,   L22,   L23,   L24,   L25,   L26 }, \
+    { KC_NO,   L31,   L32, KC_NO,   L34,   L35,   L36 }, \
+    {   R00,   R01,   R02,   R03,   R04,   R05,   R06 }, \
+    {   R10,   R11,   R12,   R13,   R14,   R15,   R16 }, \
+    {   R20,   R21,   R22,   R23,   R24,   R25,   R26 }, \
+    {   R30,   R31,   R32, KC_NO,   R34,   R35,   R36 }  \
+  }
+
+#define LAYOUT_rotary_layer( \
+    L00, L01, L02, L03, L04, L05, L06,      R00, R01, R02, R03, R04, R05, R06, \
+         L11, L12, L13, L14, L15, L16, L10, R10, R11, R12, R13, R14, R15, R16, \
+         L21, L22, L23, L24, L25, L26, L20, R20, R21, R22, R23, R24, R25, R26, \
+         L31, L32,      L34, L35, L36, L30, R30, R31, R32,      R34, R35, R36  \
+  ) \
+  { \
+    {   L00,   L01,   L02,   L03,   L04,   L05,   L06 }, \
+    {   L10,   L11,   L12,   L13,   L14,   L15,   L16 }, \
+    {   L20,   L21,   L22,   L23,   L24,   L25,   L26 }, \
+    {   L30,   L31,   L32, KC_NO,   L34,   L35,   L36 }, \
+    {   R00,   R01,   R02,   R03,   R04,   R05,   R06 }, \
+    {   R10,   R11,   R12,   R13,   R14,   R15,   R16 }, \
+    {   R20,   R21,   R22,   R23,   R24,   R25,   R26 }, \
+    {   R30,   R31,   R32, KC_NO,   R34,   R35,   R36 }  \
+  }
diff --git a/keyboards/gl516/n51gl/readme.md b/keyboards/gl516/n51gl/readme.md
new file mode 100644
index 00000000000..916b8ff6718
--- /dev/null
+++ b/keyboards/gl516/n51gl/readme.md
@@ -0,0 +1,27 @@
+# n51gl
+
+![n51gl](https://cdn-ak.f.st-hatena.com/images/fotolife/S/Salicylic_acid3/20210911/20210911015705.png)
+
+This is 51 keys Custom keyboard.
+Use the GL516 case.
+
+* Keyboard Maintainer: [Salicylic_acid3](https://github.com/Salicylic-acid3)
+* Hardware Supported: nknl7 PCB, Pro Micro
+* Hardware Availability: [PCB & Case Data](https://github.com/Salicylic-acid3/GL516_Exemple)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make gl516/n51gl:default
+
+## Bootloader
+
+Enter the bootloader in 3 ways:
+
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard
+* **Physical reset button**: Briefly press the button on the back of the PCB - some may have pads you must short instead
+* **Keycode in layout**: Press the key mapped to `RESET` if it is available
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
+
+[Build guide](https://salicylic-acid3.hatenablog.com/entry/a52gl-j73gl-build-guide)
+
diff --git a/keyboards/gl516/n51gl/rules.mk b/keyboards/gl516/n51gl/rules.mk
new file mode 100644
index 00000000000..6279bfb0e0d
--- /dev/null
+++ b/keyboards/gl516/n51gl/rules.mk
@@ -0,0 +1,22 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+BOOTLOADER = caterina
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = yes      # Enable Bootmagic Lite
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = no         # Commands for debug and configuration
+NKRO_ENABLE = no            # Enable N-Key Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = yes       # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output
+ENCODER_ENABLE = yes
+CUSTOM_MATRIX = lite
+
+SRC += matrix.c
\ No newline at end of file