diff --git a/.gitignore b/.gitignore
index 3fec32c84..eca1c9fab 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 tmp/
+.idea
\ No newline at end of file
diff --git a/qmk_firmware/keyboards/keyball/keyball39/keyball39.c b/qmk_firmware/keyboards/keyball/keyball39/keyball39.c
index 5472a0d48..a92c9153f 100644
--- a/qmk_firmware/keyboards/keyball/keyball39/keyball39.c
+++ b/qmk_firmware/keyboards/keyball/keyball39/keyball39.c
@@ -14,6 +14,28 @@ 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/>.
+-------------------------------------------------------------------
+参考文献：
+- リポジトリ：
+  https://github.com/kamiichi99/keyball/tree/main/qmk_firmware/keyboards/keyball/keyball39/keymaps/kamidai
+- keyballの販売ページ
+  https://shirogane-lab.com/collections/all
+コード表：
+- 公式ファームウェアのキーコード：
+  KBC_RST(0x5DA5): Keyball 設定のリセット
+  KBC_SAVE(0x5DA6): 現在の Keyball 設定を EEPROM に保存します
+  CPI_I100(0x5DA7): CPI を 100 増加させます(最大:12000)
+  CPI_D100(0x5DA8): CPI を 100 減少させます(最小:100)
+  CPI_I1K(0x5DA9): CPI を 1000 増加させます(最大:12000)
+  CPI_D1K(0x5DAA): CPI を 1000 減少させます(最小:100)
+  SCRL_TO(0x5DAB): タップごとにスクロールモードの ON/OFF を切り替えます
+  SCRL_MO(0x5DAC): キーを押している間、スクロールモードになります
+  SCRL_DVI(0x5DAD): スクロール除数を１つ上げます(max D7 = 1/128)← 最もスクロール遅い
+  SCRL_DVD(0x5DAE): スクロール除数を１つ下げます(min D0 = 1/1)← 最もスクロール速い
+- オリジナルのキーコード：
+  KC_BACK_TO_LAYER0_BTN1(0x5DAF): レイヤー0に遷移できるBTN1
+  KC_DOUBLE_CLICK_BTN1(0x5DB0): 1タップでダブルクリックできるBTN1
+  KC_TRIPLE_CLICK_BTN1(0x5DB1): 1タップでトリプルクリックできるBTN1
 */
 
 #include QMK_KEYBOARD_H
diff --git a/qmk_firmware/keyboards/keyball/keyball39/keymaps/default/keymap.c b/qmk_firmware/keyboards/keyball/keyball39/keymaps/default/keymap.c
index ebc396758..ffe46bf22 100644
--- a/qmk_firmware/keyboards/keyball/keyball39/keymaps/default/keymap.c
+++ b/qmk_firmware/keyboards/keyball/keyball39/keymaps/default/keymap.c
@@ -50,12 +50,35 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     RGB_RMOD , RGB_HUD  , RGB_SAD  , RGB_VAD  , SCRL_DVD ,                            CPI_D1K  , CPI_D100 , CPI_I100 , CPI_I1K  , KBC_SAVE ,
     QK_BOOT  , KBC_RST  , _______  , _______  , _______  , _______  ,      _______  , _______  , _______  , _______  , KBC_RST  , QK_BOOT
   ),
+
+  [4] = LAYOUT_universal(
+    _______  , _______  , _______  , _______  , _______  ,                            _______  , _______  , _______  , _______  , _______  ,
+    _______  , _______  , _______  , _______  , _______  ,                            _______  , _______  , _______  , _______  , _______  ,
+    _______  , _______  , _______  , _______  , _______  ,                            _______  , _______  , _______  , _______  , _______  ,
+    _______  , _______  , _______  , _______  , _______  , _______  ,      _______  , _______  , _______  , _______  , _______  , _______
+  ),
+
+  [5] = LAYOUT_universal(
+    _______  , _______  , _______  , _______  , _______  ,                            _______  , SCRL_DVI , CPI_I100 , _______  , RGB_TOG  ,
+    _______  , _______  , _______  , _______  , _______  ,                            SCRL_DVD , CPI_D100 , _______  , _______  , _______  ,
+    _______  , _______  , _______  , _______  , _______  ,                            _______  , _______  , _______  , _______  , _______  ,
+    _______  , _______  , _______  , _______  , _______  , _______  ,        RESET  , KBC_RST  , _______  , _______  , _______  , _______
+  ),
+
+  [6] = LAYOUT_universal(
+    _______  , _______  , _______  , _______  , _______  ,                            _______  , _______  , _______  , _______  , _______  ,
+    KC_LALT  , KC_LSFT  , _______  ,KC_MS_BTN1, _______ ,                            _______  ,KC_MS_BTN1,KC_MS_BTN3,KC_MS_BTN2, _______  ,
+    _______  , _______  , _______  , _______  , _______  ,                            _______  , _______  , _______  , _______  , _______  ,
+    _______  , _______  , _______  , _______  , _______  , _______  ,      _______  , _______  , _______  , _______  , _______  , _______
+  )
 };
 // clang-format on
 
 layer_state_t layer_state_set_user(layer_state_t state) {
     // Auto enable scroll mode when the highest layer is 3
-    keyball_set_scroll_mode(get_highest_layer(state) == 3);
+    // keyball_set_scroll_mode(get_highest_layer(state) == 3);
+    // 自動スクロール有効化
+    keyball_set_scroll_mode(get_highest_layer(state) == 1 || get_highest_layer(state) == 3);
     return state;
 }
 
diff --git a/qmk_firmware/keyboards/keyball/keyball39/keymaps/default/rules.mk b/qmk_firmware/keyboards/keyball/keyball39/keymaps/default/rules.mk
index 5746ccd28..a1dc59227 100644
--- a/qmk_firmware/keyboards/keyball/keyball39/keymaps/default/rules.mk
+++ b/qmk_firmware/keyboards/keyball/keyball39/keymaps/default/rules.mk
@@ -1,3 +1,3 @@
-RGBLIGHT_ENABLE = yes
+RGBLIGHT_ENABLE = no
 
 OLED_ENABLE = yes