diff --git a/keyboards/takashicompany/heavy_left/config.h b/keyboards/takashicompany/heavy_left/config.h
index e7f37f251c..b5a16def68 100644
--- a/keyboards/takashicompany/heavy_left/config.h
+++ b/keyboards/takashicompany/heavy_left/config.h
@@ -143,3 +143,5 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 /* Bootmagic Lite key configuration */
 //#define BOOTMAGIC_LITE_ROW 0
 //#define BOOTMAGIC_LITE_COLUMN 0
+
+#define EE_HANDS
\ No newline at end of file
diff --git a/keyboards/takashicompany/heavy_left/keymaps/takashicompany/keymap.c b/keyboards/takashicompany/heavy_left/keymaps/takashicompany/keymap.c
new file mode 100644
index 0000000000..11beb28ca0
--- /dev/null
+++ b/keyboards/takashicompany/heavy_left/keymaps/takashicompany/keymap.c
@@ -0,0 +1,69 @@
+/* Copyright 2021 takashicompany
+ *
+ * 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"
+
+// Defines the keycodes used by our macros in process_record_user
+enum custom_keycodes {
+    KC_00 = USER00,
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    
+    LAYOUT(
+        KC_NLCK, KC_PSLS, KC_PAST, KC_PMNS, KC_ESC, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_JYEN, KC_BSPC, KC_DEL,
+        KC_P7, KC_P8, KC_P9, KC_PPLS, 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_RBRC, KC_ENT, KC_HOME,
+        KC_P4, KC_P5, KC_P6, KC_PCMM,KC_LCTL, KC_A, KC_S, LT(2, KC_D), KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_NUHS, KC_END,
+        KC_P1, KC_P2, KC_P3, KC_PEQL, KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, JP_BSLS, KC_UP, KC_RSFT, KC_PGUP,
+        KC_P0, KC_00, KC_PDOT, KC_PENT, KC_LCTL, KC_LGUI, KC_LALT, LALT_T(KC_LANG2), LALT_T(KC_LANG2), LSFT_T(KC_TAB), KC_SPC, LT(1, KC_LANG1), KC_RALT, KC_RGUI, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT, MO(3)
+    ),
+
+    LAYOUT(
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_EQL, KC_LBRC, KC_SLSH, KC_MINS, KC_RO, KC_SCLN, KC_QUOT, KC_RBRC, KC_NUHS, KC_JYEN, KC_TRNS, KC_TRNS, KC_TRNS, 
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS
+    ),
+    
+    LAYOUT(
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_UP, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_LEFT, KC_DOWN, KC_RGHT, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS
+    ),
+
+      LAYOUT(
+        KC_NLCK, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, 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_TRNS, KC_TRNS, KC_TRNS,
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, RGB_TOG, RGB_MOD, RGB_HUI, RGB_SAI, RGB_VAI,   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, RGB_M_P, RGB_M_B, RGB_M_R, RGB_M_SW, RGB_M_SN, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, RGB_M_K, RGB_M_X, RGB_M_G, RGB_M_T, RGB_M_T,   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_CAPS,
+        KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,   KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS
+    )
+
+};
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    switch (keycode) {
+        case KC_00:
+            if (record->event.pressed) {
+                SEND_STRING("00");
+            }
+            return false;
+    }
+    return true;
+}
\ No newline at end of file
diff --git a/keyboards/takashicompany/heavy_left/keymaps/takashicompany/rules.mk b/keyboards/takashicompany/heavy_left/keymaps/takashicompany/rules.mk
new file mode 100644
index 0000000000..036bd6d1c3
--- /dev/null
+++ b/keyboards/takashicompany/heavy_left/keymaps/takashicompany/rules.mk
@@ -0,0 +1 @@
+VIA_ENABLE = yes
\ No newline at end of file
diff --git a/keyboards/takashicompany/heavy_left/rules.mk b/keyboards/takashicompany/heavy_left/rules.mk
index a92a794ed6..ce3c5bfaeb 100644
--- a/keyboards/takashicompany/heavy_left/rules.mk
+++ b/keyboards/takashicompany/heavy_left/rules.mk
@@ -14,7 +14,7 @@ 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
+RGBLIGHT_ENABLE = yes        # Enable keyboard RGB underglow
 AUDIO_ENABLE = no           # Audio output
 
 SPLIT_KEYBOARD=yes
\ No newline at end of file