diff --git a/app/src/main/java/io/github/chipppppppppp/lime/hooks/test.java b/app/src/main/java/io/github/chipppppppppp/lime/hooks/test.java
index c4a1d0a0..bf5b27a9 100644
--- a/app/src/main/java/io/github/chipppppppppp/lime/hooks/test.java
+++ b/app/src/main/java/io/github/chipppppppppp/lime/hooks/test.java
@@ -13,7 +13,7 @@
 
 public class test implements IHook {
     private Ringtone ringtone = null;
-    private boolean isPlaying = false; 
+    private boolean isPlaying = false; // 着信音が再生中かどうかを管理するフラグ
 
     @Override
     public void hook(LimeOptions limeOptions, XC_LoadPackage.LoadPackageParam loadPackageParam) throws Throwable {
@@ -21,42 +21,49 @@ public void hook(LimeOptions limeOptions, XC_LoadPackage.LoadPackageParam loadPa
                 loadPackageParam.classLoader.loadClass(Constants.RESPONSE_HOOK.className),
                 Constants.RESPONSE_HOOK.methodName,
                 new XC_MethodHook() {
+
                     @Override
                     protected void afterHookedMethod(MethodHookParam param) throws Throwable {
                         String paramValue = param.args[1].toString();
+
+                        // 着信音を再生する条件
                         if (paramValue.contains("type:NOTIFIED_RECEIVED_CALL,") && !isPlaying) {
                             try {
+                                // アプリケーションのコンテキストを取得
                                 Context context = AndroidAppHelper.currentApplication().getApplicationContext();
                                 if (context != null) {
                                     Uri ringtoneUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_RINGTONE);
                                     ringtone = RingtoneManager.getRingtone(context, ringtoneUri);
-                                    ringtone.play(); 
-                                    isPlaying = true; 
-                                   
+                                    ringtone.play(); // 着信音を再生
+                                    isPlaying = true; // 再生中フラグをセット
+                                    XposedBridge.log("Ringtone is playing."); // デバッグログ
                                 }
                             } catch (Exception e) {
                                 XposedBridge.log(e);
                             }
                         }
-                        
-                        if (paramValue.contains("type:RESULT=REJECTED,") ||
-                                paramValue.contains("type:RESULT=CANCELED,")) {
+
+                        // 着信音を停止する条件
+                        if (paramValue.contains("RESULT=REJECTED,") ||
+                                paramValue.contains("RESULT=REJECTED,")) {
                             if (ringtone != null && ringtone.isPlaying()) {
-                                ringtone.stop();
-                                isPlaying = false; 
-                            
+                                ringtone.stop(); // 着信音を停止
+                                isPlaying = false; // 再生中フラグをリセット
+                                XposedBridge.log("Ringtone has been stopped."); // デバッグログ
                             }
                         }
                     }
                 });
 
         Class<?> voIPBaseFragmentClass = loadPackageParam.classLoader.loadClass("com.linecorp.voip2.common.base.VoIPBaseFragment");
+
         XposedBridge.hookAllMethods(voIPBaseFragmentClass, "onCreate", new XC_MethodHook() {
             @Override
             protected void beforeHookedMethod(MethodHookParam param) throws Throwable {
                 if (ringtone != null && ringtone.isPlaying()) {
-                    ringtone.stop(); 
-                    isPlaying = false;
+                    ringtone.stop(); // フラグがリセットされる前に着信音を停止
+                    isPlaying = false; // 再生中フラグをリセット
+                    XposedBridge.log("Ringtone has been stopped in onCreate."); // デバッグログ
                 }
             }
         });