diff --git a/src-python/controller.py b/src-python/controller.py
index c34abaf8..28c30734 100644
--- a/src-python/controller.py
+++ b/src-python/controller.py
@@ -298,9 +298,13 @@ class Controller:
                         # その他のエラーは通常通り処理
                         raise
 
-                if config.CONVERT_MESSAGE_TO_ROMAJI is True or config.CONVERT_MESSAGE_TO_HIRAGANA is True:
+                if config.CONVERT_MESSAGE_TO_HIRAGANA is True or config.CONVERT_MESSAGE_TO_ROMAJI is True:
                     if config.SELECTED_TARGET_LANGUAGES[config.SELECTED_TAB_NO]["1"]["language"] == "Japanese":
-                        transliteration = model.convertMessageToTransliteration(translation[0])
+                        transliteration = model.convertMessageToTransliteration(
+                            translation[0],
+                            hiragana=config.CONVERT_MESSAGE_TO_HIRAGANA,
+                            romaji=config.CONVERT_MESSAGE_TO_ROMAJI
+                        )
 
             if config.ENABLE_TRANSCRIPTION_SEND is True:
                 if config.SEND_MESSAGE_TO_VRC is True:
@@ -425,9 +429,13 @@ class Controller:
                         # その他のエラーは通常通り処理
                         raise
 
-                if config.CONVERT_MESSAGE_TO_ROMAJI is True or config.CONVERT_MESSAGE_TO_HIRAGANA is True:
+                if config.CONVERT_MESSAGE_TO_HIRAGANA is True or config.CONVERT_MESSAGE_TO_ROMAJI is True:
                     if config.SELECTED_TARGET_LANGUAGES[config.SELECTED_TAB_NO]["1"]["language"] == "Japanese":
-                        transliteration = model.convertMessageToTransliteration(message)
+                        transliteration = model.convertMessageToTransliteration(
+                            message,
+                            hiragana=config.CONVERT_MESSAGE_TO_HIRAGANA,
+                            romaji=config.CONVERT_MESSAGE_TO_ROMAJI
+                        )
 
             if config.ENABLE_TRANSCRIPTION_RECEIVE is True:
                 if config.OVERLAY_SMALL_LOG is True and model.overlay.initialized is True:
@@ -571,9 +579,13 @@ class Controller:
                         # その他のエラーは通常通り処理
                         raise
 
-                if config.CONVERT_MESSAGE_TO_ROMAJI is True or config.CONVERT_MESSAGE_TO_HIRAGANA is True:
+                if config.CONVERT_MESSAGE_TO_HIRAGANA is True or config.CONVERT_MESSAGE_TO_ROMAJI is True:
                     if config.SELECTED_TARGET_LANGUAGES[config.SELECTED_TAB_NO]["1"]["language"] == "Japanese":
-                        transliteration = model.convertMessageToTransliteration(translation[0])
+                        transliteration = model.convertMessageToTransliteration(
+                            translation[0],
+                            hiragana=config.CONVERT_MESSAGE_TO_HIRAGANA,
+                            romaji=config.CONVERT_MESSAGE_TO_ROMAJI
+                        )
 
             # send OSC message
             if config.SEND_MESSAGE_TO_VRC is True:
diff --git a/src-python/model.py b/src-python/model.py
index 333f1394..f7f1462c 100644
--- a/src-python/model.py
+++ b/src-python/model.py
@@ -275,13 +275,21 @@ class Model:
         self.previous_receive_message = message
         return repeat_flag
 
-    def convertMessageToTransliteration(self, message: str) -> str:
+    def convertMessageToTransliteration(self, message: str, hiragana: bool=True, romaji: bool=True) -> str:
+        if hiragana is False and romaji is False:
+            return message
+
+        keys_to_keep = {"orig"}
+        if hiragana:
+            keys_to_keep.add("hira")
+        if romaji:
+            keys_to_keep.add("hepburn")
+
         data_list = self.kks.convert(message)
-        keys_to_keep = {"orig", "hira", "hepburn"}
-        filtered_list = []
-        for item in data_list:
-            filtered_item = {key: value for key, value in item.items() if key in keys_to_keep}
-            filtered_list.append(filtered_item)
+        filtered_list = [
+            {key: value for key, value in item.items() if key in keys_to_keep}
+            for item in data_list
+        ]
         return filtered_list
 
     def setOscIpAddress(self, ip_address):