diff --git a/feature/debug/src/main/java/one/nem/lacerta/feature/debug/DebugMenuFragment.java b/feature/debug/src/main/java/one/nem/lacerta/feature/debug/DebugMenuFragment.java
index ec5cc9a6..c9fad449 100644
--- a/feature/debug/src/main/java/one/nem/lacerta/feature/debug/DebugMenuFragment.java
+++ b/feature/debug/src/main/java/one/nem/lacerta/feature/debug/DebugMenuFragment.java
@@ -77,5 +77,9 @@ public class DebugMenuFragment extends Fragment {
         view.findViewById(R.id.btn_debug_menu_call_play_ground).setOnClickListener( v -> {
             Navigation.findNavController(view).navigate(R.id.action_debugMenuFragment_to_debugPlayGroundFragment);
         });
+
+        view.findViewById(R.id.btn_debug_menu_get_external_path).setOnClickListener( v -> {
+            Toast.makeText(getContext(), getContext().getExternalFilesDir(null).toPath().toString(), Toast.LENGTH_SHORT).show();
+        });
     }
 }
\ No newline at end of file
diff --git a/feature/debug/src/main/java/one/nem/lacerta/feature/debug/DebugSharedPrefEditorFragment.java b/feature/debug/src/main/java/one/nem/lacerta/feature/debug/DebugSharedPrefEditorFragment.java
index c3bb6ad7..79100cf3 100644
--- a/feature/debug/src/main/java/one/nem/lacerta/feature/debug/DebugSharedPrefEditorFragment.java
+++ b/feature/debug/src/main/java/one/nem/lacerta/feature/debug/DebugSharedPrefEditorFragment.java
@@ -18,7 +18,6 @@ import org.w3c.dom.Text;
 import java.util.Map;
 
 import one.nem.lacerta.data.model.shared_pref.enums.SharedPrefType;
-import one.nem.lacerta.source.pref.repository.Common; //TODO-rca: 名前変えるべきかも
 
 import one.nem.lacerta.data.repository.SharedPref;
 
@@ -34,9 +33,6 @@ import dagger.hilt.android.AndroidEntryPoint;
 @AndroidEntryPoint
 public class DebugSharedPrefEditorFragment extends Fragment {
 
-    @Inject
-    Common prefCommon;
-
     @Inject
     SharedPref sharedPref;