diff --git a/keyboards/plum47/info.json b/keyboards/plum47/info.json
new file mode 100644
index 00000000000..9ad37d17680
--- /dev/null
+++ b/keyboards/plum47/info.json
@@ -0,0 +1,80 @@
+{
+ "manufacturer": "Masayuki Takagi",
+ "keyboard_name": "plum47",
+ "maintainer": "awh-tokyo",
+ "bootloader": "caterina",
+ "diode_direction": "COL2ROW",
+ "features": {
+ "bootmagic": true,
+ "command": false,
+ "console": false,
+ "extrakey": true,
+ "mousekey": true,
+ "nkro": true
+ },
+ "matrix_pins": {
+ "cols": ["F4", "F5", "F6", "F7", "B1", "B3", "B2", "B6", "B5", "B4", "E6", "D7"],
+ "rows": ["D1", "D0", "D4", "C6"]
+ },
+ "processor": "atmega32u4",
+ "url": "ihttps://github.com/takagi/plum47_buildguide",
+ "usb": {
+ "device_version": "1.0.0",
+ "pid": "0x5E14",
+ "vid": "0xFEED"
+ },
+ "debounce": 5,
+ "layouts": {
+ "LAYOUT": {
+ "layout": [
+ { "matrix": [0, 0], "x": 0, "y": 0 },
+ { "matrix": [0, 1], "x": 1, "y": 0 },
+ { "matrix": [0, 2], "x": 2, "y": 0 },
+ { "matrix": [0, 3], "x": 3, "y": 0 },
+ { "matrix": [0, 4], "x": 4, "y": 0 },
+ { "matrix": [0, 5], "x": 5, "y": 0 },
+ { "matrix": [0, 6], "x": 6, "y": 0 },
+ { "matrix": [0, 7], "x": 7, "y": 0 },
+ { "matrix": [0, 8], "x": 8, "y": 0 },
+ { "matrix": [0, 9], "x": 9, "y": 0 },
+ { "matrix": [0, 10], "x": 10, "y": 0 },
+ { "matrix": [0, 11], "x": 11, "y": 0 },
+ { "matrix": [1, 0], "x": 0, "y": 1 },
+ { "matrix": [1, 1], "x": 1, "y": 1 },
+ { "matrix": [1, 2], "x": 2, "y": 1 },
+ { "matrix": [1, 3], "x": 3, "y": 1 },
+ { "matrix": [1, 4], "x": 4, "y": 1 },
+ { "matrix": [1, 5], "x": 5, "y": 1 },
+ { "matrix": [1, 6], "x": 6, "y": 1 },
+ { "matrix": [1, 7], "x": 7, "y": 1 },
+ { "matrix": [1, 8], "x": 8, "y": 1 },
+ { "matrix": [1, 9], "x": 9, "y": 1 },
+ { "matrix": [1, 10], "x": 10, "y": 1 },
+ { "matrix": [1, 11], "x": 11, "y": 1 },
+ { "matrix": [2, 0], "x": 0, "y": 2 },
+ { "matrix": [2, 1], "x": 1, "y": 2 },
+ { "matrix": [2, 2], "x": 2, "y": 2 },
+ { "matrix": [2, 3], "x": 3, "y": 2 },
+ { "matrix": [2, 4], "x": 4, "y": 2 },
+ { "matrix": [2, 5], "x": 5, "y": 2 },
+ { "matrix": [2, 6], "x": 6, "y": 2 },
+ { "matrix": [2, 7], "x": 7, "y": 2 },
+ { "matrix": [2, 8], "x": 8, "y": 2 },
+ { "matrix": [2, 9], "x": 9, "y": 2 },
+ { "matrix": [2, 10], "x": 10, "y": 2 },
+ { "matrix": [2, 11], "x": 11, "y": 2 },
+ { "matrix": [3, 0], "x": 0, "y": 3 },
+ { "matrix": [3, 1], "x": 1, "y": 3 },
+ { "matrix": [3, 2], "x": 2, "y": 3 },
+ { "matrix": [3, 3], "x": 3, "y": 3 },
+ { "matrix": [3, 4], "x": 4, "y": 3 },
+ { "matrix": [3, 5], "x": 5, "y": 3, "w": 2 },
+ { "matrix": [3, 7], "x": 7, "y": 3 },
+ { "matrix": [3, 8], "x": 8, "y": 3 },
+ { "matrix": [3, 9], "x": 9, "y": 3 },
+ { "matrix": [3, 10], "x": 10, "y": 3 },
+ { "matrix": [3, 11], "x": 11, "y": 3 }
+ ]
+ }
+ }
+}
diff --git a/keyboards/plum47/keymaps/default/keymap.c b/keyboards/plum47/keymaps/default/keymap.c
new file mode 100644
index 00000000000..dc6642d7f17
--- /dev/null
+++ b/keyboards/plum47/keymaps/default/keymap.c
@@ -0,0 +1,84 @@
+/* Copyright 2020 Masayuki Takagi
+ *
+ * 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 .
+ */
+#include QMK_KEYBOARD_H
+
+// Defines names for use in layer keycodes and the keymap
+enum layer_names {
+ _QWERTY = 0,
+ _LOWER,
+ _RAISE
+};
+
+#define LOWER MO(_LOWER)
+#define RAISE MO(_RAISE)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab | Q | W | E | R | T | Y | U | I | O | P | Bksp |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Esc | A | S | D | F | G | H | J | K | L | ; | ' |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Shift| Z | X | C | V | B | N | M | , | . | / |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | Ctrl | Alt | GUI |Lower | Space |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = LAYOUT(
+ KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC,
+ KC_ESC, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT,
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_ENT ,
+ KC_NO, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * | ~ | ! | @ | # | $ | % | ^ | & | * | ( | ) | Bksp |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Del | F1 | F2 | F3 | F4 | F5 | F6 | _ | + | { | } | | |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | F7 | F8 | F9 | F10 | F11 | F12 | | | Home | End | |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | | | | | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = LAYOUT(
+ KC_TILD, KC_EXLM, KC_AT, KC_HASH, KC_DLR, KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC,
+ KC_DEL, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE,
+ _______, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, _______, _______, KC_HOME, KC_END, _______,
+ _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * | ` | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | Bksp |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Del | F1 | F2 | F3 | F4 | F5 | F6 | - | = | [ | ] | \ |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | F7 | F8 | F9 | F10 | F11 | F12 | | |Pg Up |Pg Dn | |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | | | | | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = LAYOUT(
+ KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSPC,
+ KC_DEL, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_MINS, KC_EQL, KC_LBRC, KC_RBRC, KC_BSLS,
+ _______, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, _______, _______, KC_PGUP, KC_PGDN, _______,
+ _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY
+)
+
+};
+
diff --git a/keyboards/plum47/keymaps/via/keymap.c b/keyboards/plum47/keymaps/via/keymap.c
new file mode 100644
index 00000000000..8927fa4f761
--- /dev/null
+++ b/keyboards/plum47/keymaps/via/keymap.c
@@ -0,0 +1,92 @@
+/* Copyright 2020 Masayuki Takagi
+ *
+ * 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 .
+ */
+#include QMK_KEYBOARD_H
+
+// Defines names for use in layer keycodes and the keymap
+enum layer_names {
+ _QWERTY = 0,
+ _LOWER,
+ _RAISE,
+ _BLANK
+};
+
+#define LOWER FN_MO13
+#define RAISE FN_MO23
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab | Q | W | E | R | T | Y | U | I | O | P | Bksp |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Esc | A | S | D | F | G | H | J | K | L | ; | ' |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Shift| Z | X | C | V | B | N | M | , | . | / |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | Ctrl | Alt | GUI |Lower | Space |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = LAYOUT(
+ KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC,
+ KC_ESC, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT,
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_ENT ,
+ KC_NO, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * | ~ | ! | @ | # | $ | % | ^ | & | * | ( | ) | Bksp |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Del | F1 | F2 | F3 | F4 | F5 | F6 | _ | + | { | } | | |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | F7 | F8 | F9 | F10 | F11 | F12 | | | Home | End | |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | | | | | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = LAYOUT(
+ KC_TILD, KC_EXLM, KC_AT, KC_HASH, KC_DLR, KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC,
+ KC_DEL, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE,
+ _______, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, _______, _______, KC_HOME, KC_END, _______,
+ _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * | ` | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | Bksp |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Del | F1 | F2 | F3 | F4 | F5 | F6 | - | = | [ | ] | \ |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | F7 | F8 | F9 | F10 | F11 | F12 | | |Pg Up |Pg Dn | |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | | | | | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = LAYOUT(
+ KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSPC,
+ KC_DEL, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_MINS, KC_EQL, KC_LBRC, KC_RBRC, KC_BSLS,
+ _______, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, _______, _______, KC_PGUP, KC_PGDN, _______,
+ _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY
+),
+
+// Blank layer because via needs 4 by default
+[_BLANK] = LAYOUT(
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+)
+};
+
diff --git a/keyboards/plum47/keymaps/via/rules.mk b/keyboards/plum47/keymaps/via/rules.mk
new file mode 100644
index 00000000000..1e5b99807cb
--- /dev/null
+++ b/keyboards/plum47/keymaps/via/rules.mk
@@ -0,0 +1 @@
+VIA_ENABLE = yes
diff --git a/keyboards/plum47/readme.md b/keyboards/plum47/readme.md
new file mode 100644
index 00000000000..7e8745249c1
--- /dev/null
+++ b/keyboards/plum47/readme.md
@@ -0,0 +1,28 @@
+# plum47
+
+
+
+Plum47 is a 4-row, 12-column (47 key) ortholinear keyboard sold domestically in Japan as a
+home build kit. It features MX sockets for hot-swap keyswitch support, and a bezel-less
+acrylic sandwich case. The controller is a Pro Micro.
+
+* Keyboard Developer: [Masayuki Takagi](https://github.com/takagi)
+* Keyboard submitted by [Andrew Hamilton](https://github.com/awh-tokyo)
+* Hardware Supported: plum47 keyboard kit including PCB and Pro Micro controller
+* Hardware Availability: https://shop.yushakobo.jp/products/consign_plum47
+
+Make example for this keyboard (after setting up your build environment):
+
+ make plum47:default
+
+Flashing example for this keyboard:
+
+ make plum47:default:flash
+
+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).
+
+## Bootloader
+
+Enter the bootloader as follows:
+
+* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (usually the top left key or Escape) and plug in the keyboard
diff --git a/keyboards/plum47/rules.mk b/keyboards/plum47/rules.mk
new file mode 100644
index 00000000000..6e7633bfe01
--- /dev/null
+++ b/keyboards/plum47/rules.mk
@@ -0,0 +1 @@
+# This file intentionally left blank