diff --git a/campaign/Readme.md b/campaign/Readme.md
index e4777b28d..925ecafc7 100644
--- a/campaign/Readme.md
+++ b/campaign/Readme.md
@@ -271,3 +271,4 @@ To add a new event, add a new row in here, and run `python -m module.config.conf
 | 20251120   | coalition 20251120       | DATE A LANE                                  | DATE A LANE                | DATE A LANE                                        | DATE A LANE                          | -                          |
 | 20251127   | coalition 20251120       | DATE A LANE                                  | -                          | -                                                  | -                                    | DATE A LANE                |
 | 20251211   | event 20251023 cn        | Tempesta and Islas de Libertád               | -                          | -                                                  | -                                    | 颶風與自由群島             |
+| 20251218   | event 20251218 cn        | A Note Through the Firmament                 | 响彻于天穹之音             | A Note Through the Firmament                       | 天穹に響く音謡                       | -                          |
diff --git a/module/config/argument/args.json b/module/config/argument/args.json
index d04dc7414..dc37419cc 100644
--- a/module/config/argument/args.json
+++ b/module/config/argument/args.json
@@ -1634,25 +1634,25 @@
         "type": "select",
         "value": "campaign_main",
         "option": [
-          "event_20230914_cn",
-          "event_20251023_cn"
+          "event_20251023_cn",
+          "event_20251218_cn"
         ],
         "display": "hide",
         "option_cn": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_en": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_jp": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_tw": [
           "event_20251023_cn"
         ],
         "option_bold": [
-          "event_20230914_cn",
-          "event_20251023_cn"
+          "event_20251023_cn",
+          "event_20251218_cn"
         ]
       },
       "Mode": {
@@ -1915,24 +1915,24 @@
         "type": "state",
         "value": "campaign_main",
         "option": [
-          "event_20230914_cn",
-          "event_20251023_cn"
+          "event_20251023_cn",
+          "event_20251218_cn"
         ],
         "option_cn": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_en": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_jp": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_tw": [
           "event_20251023_cn"
         ],
         "option_bold": [
-          "event_20230914_cn",
-          "event_20251023_cn"
+          "event_20251023_cn",
+          "event_20251218_cn"
         ]
       },
       "Mode": {
@@ -2310,24 +2310,24 @@
         "type": "state",
         "value": "campaign_main",
         "option": [
-          "event_20230914_cn",
-          "event_20251023_cn"
+          "event_20251023_cn",
+          "event_20251218_cn"
         ],
         "option_cn": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_en": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_jp": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_tw": [
           "event_20251023_cn"
         ],
         "option_bold": [
-          "event_20230914_cn",
-          "event_20251023_cn"
+          "event_20251023_cn",
+          "event_20251218_cn"
         ]
       },
       "Mode": {
@@ -4031,24 +4031,24 @@
         "type": "state",
         "value": "campaign_main",
         "option": [
-          "event_20230914_cn",
-          "event_20251023_cn"
+          "event_20251023_cn",
+          "event_20251218_cn"
         ],
         "option_cn": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_en": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_jp": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_tw": [
           "event_20251023_cn"
         ],
         "option_bold": [
-          "event_20230914_cn",
-          "event_20251023_cn"
+          "event_20251023_cn",
+          "event_20251218_cn"
         ]
       },
       "Mode": {
@@ -4443,24 +4443,24 @@
         "type": "state",
         "value": "campaign_main",
         "option": [
-          "event_20230914_cn",
-          "event_20251023_cn"
+          "event_20251023_cn",
+          "event_20251218_cn"
         ],
         "option_cn": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_en": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_jp": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_tw": [
           "event_20251023_cn"
         ],
         "option_bold": [
-          "event_20230914_cn",
-          "event_20251023_cn"
+          "event_20251023_cn",
+          "event_20251218_cn"
         ]
       },
       "Mode": {
@@ -4855,24 +4855,24 @@
         "type": "state",
         "value": "campaign_main",
         "option": [
-          "event_20230914_cn",
-          "event_20251023_cn"
+          "event_20251023_cn",
+          "event_20251218_cn"
         ],
         "option_cn": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_en": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_jp": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_tw": [
           "event_20251023_cn"
         ],
         "option_bold": [
-          "event_20230914_cn",
-          "event_20251023_cn"
+          "event_20251023_cn",
+          "event_20251218_cn"
         ]
       },
       "Mode": {
@@ -5267,24 +5267,24 @@
         "type": "state",
         "value": "campaign_main",
         "option": [
-          "event_20230914_cn",
-          "event_20251023_cn"
+          "event_20251023_cn",
+          "event_20251218_cn"
         ],
         "option_cn": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_en": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_jp": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_tw": [
           "event_20251023_cn"
         ],
         "option_bold": [
-          "event_20230914_cn",
-          "event_20251023_cn"
+          "event_20251023_cn",
+          "event_20251218_cn"
         ]
       },
       "Mode": {
@@ -5669,24 +5669,24 @@
         "type": "state",
         "value": "campaign_main",
         "option": [
-          "event_20230914_cn",
-          "event_20251023_cn"
+          "event_20251023_cn",
+          "event_20251218_cn"
         ],
         "option_cn": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_en": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_jp": [
-          "event_20230914_cn"
+          "event_20251218_cn"
         ],
         "option_tw": [
           "event_20251023_cn"
         ],
         "option_bold": [
-          "event_20230914_cn",
-          "event_20251023_cn"
+          "event_20251023_cn",
+          "event_20251218_cn"
         ]
       },
       "Mode": {
diff --git a/module/config/i18n/en-US.json b/module/config/i18n/en-US.json
index 847c50e06..a44582f70 100644
--- a/module/config/i18n/en-US.json
+++ b/module/config/i18n/en-US.json
@@ -763,6 +763,7 @@
       "event_20250814_cn": "Secrets of the Abyss",
       "event_20250912_cn": "A Dance for Amahara Above",
       "event_20251023_cn": "Tempesta and Islas de Libertád",
+      "event_20251218_cn": "A Note Through the Firmament",
       "raid_20200624": "Air Raid Drills with Essex Rerun",
       "raid_20210708": "Cross Wave rerun",
       "raid_20220127": "Mystery Investigation",
diff --git a/module/config/i18n/ja-JP.json b/module/config/i18n/ja-JP.json
index 604b90644..18183507e 100644
--- a/module/config/i18n/ja-JP.json
+++ b/module/config/i18n/ja-JP.json
@@ -763,6 +763,7 @@
       "event_20250814_cn": "淵層界の秘密",
       "event_20250912_cn": "アマハラに舞い奉れ",
       "event_20251023_cn": "テンペスタと自由群島",
+      "event_20251218_cn": "天穹に響く音謡",
       "raid_20200624": "特別演習超空強襲波（復刻）",
       "raid_20210708": "交錯する新たな波 (復刻)",
       "raid_20220127": "秘密事件調査",
diff --git a/module/config/i18n/zh-CN.json b/module/config/i18n/zh-CN.json
index 399021004..8237150a2 100644
--- a/module/config/i18n/zh-CN.json
+++ b/module/config/i18n/zh-CN.json
@@ -763,6 +763,7 @@
       "event_20250814_cn": "奇渊下的秘密",
       "event_20250912_cn": "起舞于天原之上",
       "event_20251023_cn": "飓风与自由群岛",
+      "event_20251218_cn": "响彻于天穹之音",
       "raid_20200624": "复刻特别演习埃塞克斯级",
       "raid_20210708": "复刻穿越彼方的水线",
       "raid_20220127": "演习神秘事件调查",
diff --git a/module/config/i18n/zh-TW.json b/module/config/i18n/zh-TW.json
index a057b8ece..15e3c7e8f 100644
--- a/module/config/i18n/zh-TW.json
+++ b/module/config/i18n/zh-TW.json
@@ -763,6 +763,7 @@
       "event_20250814_cn": "奇淵下的秘密",
       "event_20250912_cn": "起舞於天原之上",
       "event_20251023_cn": "颶風與自由群島",
+      "event_20251218_cn": "A Note Through the Firmament",
       "raid_20200624": "特別演習埃塞克斯級(復刻)",
       "raid_20210708": "復刻穿越彼方的水線",
       "raid_20220127": "演習神秘事件調查",