diff --git a/Assets/01_Scenes/blackjack.unity b/Assets/01_Scenes/blackjack.unity
index 7a97dd29..dcb56037 100644
--- a/Assets/01_Scenes/blackjack.unity
+++ b/Assets/01_Scenes/blackjack.unity
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:b5006eee2dd72bb0344d001f395405d77c95cda23a3d6e932687232a6728bf4f
-size 2308027
+oid sha256:b593ef51335c380326430e147b400c442953ef410da8e3899d88bc8042c35c14
+size 2310050
diff --git a/Assets/02_Scripts/Zone.cs b/Assets/02_Scripts/Zone.cs
index 605a4d86..7a1469d4 100644
--- a/Assets/02_Scripts/Zone.cs
+++ b/Assets/02_Scripts/Zone.cs
@@ -8,5 +8,6 @@ public enum Zone
     Seaside,
     BlackjackGame,
     BlackBgm,
-    MazeRoomSound
+    MazeRoomSound,
+    cavebgm,
 }
diff --git a/ProjectSettings/EditorBuildSettings.asset b/ProjectSettings/EditorBuildSettings.asset
index d42f1967..8098a1c1 100644
--- a/ProjectSettings/EditorBuildSettings.asset
+++ b/ProjectSettings/EditorBuildSettings.asset
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:4f6b61f6821d80d13471aa364a5b681770e7ab678c120bdf8b4d4ee081242477
-size 1481
+oid sha256:4b3467d1c5f4da50d7fbb1eb81ec73866329eee6f5c6b0fdffa4838e2de6cac6
+size 1608