diff --git a/src/message.js b/src/message.js
index 4b21939..2a2d4de 100644
--- a/src/message.js
+++ b/src/message.js
@@ -43,6 +43,8 @@ window.addEventListener(
       } else {
         sevenClick();
       }
+      if (!window.soundInstance) return;
+      window.soundInstance.playBgm();
     }
 
     function playGame(data) {