diff --git a/Marlin/language_kana.h b/Marlin/language_kana.h
index d8bc9bd20cb7aa23b41901e992ced54b89812e47..76e28a86f470f5d6ed204a42fc6c66e70368cb2b 100644
--- a/Marlin/language_kana.h
+++ b/Marlin/language_kana.h
@@ -246,6 +246,8 @@
 #define MSG_INFO_EXTRUDERS                  "\xb4\xb8\xbd\xc4\xd9\xb0\xc0\xde\xb0\xbd\xb3"                     // "ｴｸｽﾄﾙｰﾀﾞｰｽｳ" ("Extruders")
 #define MSG_INFO_BAUDRATE                   "\xce\xde\xb0\xda\xb0\xc4"                                         // "ﾎﾞｰﾚｰﾄ" ("Baud")
 #define MSG_INFO_PROTOCOL                   "\xcc\xdf\xdb\xc4\xba\xd9"                                         // "ﾌﾟﾛﾄｺﾙ" ("Protocol")
+#define MSG_LIGHTS_ON                       "\xb7\xae\xb3\xc0\xb2\xc5\xb2\xbc\xae\xb3\xd2\xb2\x20\xb5\xdd"     // "ｷｮｳﾀｲﾅｲｼｮｳﾒｲ ｵﾝ" ("Case light on")
+#define MSG_LIGHTS_OFF                      "\xb7\xae\xb3\xc0\xb2\xc5\xb2\xbc\xae\xb3\xd2\xb2\x20\xb5\xcc"     // "ｷｮｳﾀｲﾅｲｼｮｳﾒｲ ｵﾌ" ("Case light off")
 #define MSG_INFO_PRINT_COUNT                "\xcc\xdf\xd8\xdd\xc4\xbd\xb3"                                     // "ﾌﾟﾘﾝﾄｽｳ" ("Print Count")
 #define MSG_INFO_COMPLETED_PRINTS           "\xb6\xdd\xd8\xae\xb3\xbd\xb3"                                     // "ｶﾝﾘｮｳｽｳ" ("Completed")
 #define MSG_INFO_PRINT_TIME                 "\xcc\xdf\xd8\xdd\xc4\xbc\xde\xb6\xdd\xd9\xb2\xb9\xb2"             // "ﾌﾟﾘﾝﾄｼﾞｶﾝﾙｲｹｲ" ("Total print time")
diff --git a/Marlin/language_kana_utf8.h b/Marlin/language_kana_utf8.h
index 330ee0ab9522ae318624cc661b4a5a86e3392fb7..f23c7c2aaa9f1f846c2456bffc532a41231270a9 100644
--- a/Marlin/language_kana_utf8.h
+++ b/Marlin/language_kana_utf8.h
@@ -190,6 +190,8 @@
 #define MSG_INFO_EXTRUDERS                  "エクストルーダースウ"             // "Extruders"
 #define MSG_INFO_BAUDRATE                   "ボーレート"                    // "Baud"
 #define MSG_INFO_PROTOCOL                   "プロトコル"                    // "Protocol"
+#define MSG_LIGHTS_ON                       "キョウタイナイショウメイ オン"       // "Case light on"
+#define MSG_LIGHTS_OFF                      "キョウタイナイショウメイ オフ"       // "Case light off"
 #define MSG_INFO_PRINT_COUNT                "プリントスウ "                  // "Print Count"
 #define MSG_INFO_COMPLETED_PRINTS           "カンリョウスウ"                  // "Completed"
 #define MSG_INFO_PRINT_TIME                 "プリントジカンルイケイ"            // "Total print time"