diff --git a/app/src/main/java/one/nem/lacerta/AppBlankFragment.java b/app/src/main/java/one/nem/lacerta/AppBlankFragment.java
new file mode 100644
index 00000000..5a9ba291
--- /dev/null
+++ b/app/src/main/java/one/nem/lacerta/AppBlankFragment.java
@@ -0,0 +1,64 @@
+package one.nem.lacerta;
+
+import android.os.Bundle;
+
+import androidx.fragment.app.Fragment;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+/**
+ * A simple {@link Fragment} subclass.
+ * Use the {@link AppBlankFragment#newInstance} factory method to
+ * create an instance of this fragment.
+ */
+public class AppBlankFragment extends Fragment {
+
+    // TODO: Rename parameter arguments, choose names that match
+    // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
+    private static final String ARG_PARAM1 = "param1";
+    private static final String ARG_PARAM2 = "param2";
+
+    // TODO: Rename and change types of parameters
+    private String mParam1;
+    private String mParam2;
+
+    public AppBlankFragment() {
+        // Required empty public constructor
+    }
+
+    /**
+     * Use this factory method to create a new instance of
+     * this fragment using the provided parameters.
+     *
+     * @param param1 Parameter 1.
+     * @param param2 Parameter 2.
+     * @return A new instance of fragment AppBlankFragment.
+     */
+    // TODO: Rename and change types and number of parameters
+    public static AppBlankFragment newInstance(String param1, String param2) {
+        AppBlankFragment fragment = new AppBlankFragment();
+        Bundle args = new Bundle();
+        args.putString(ARG_PARAM1, param1);
+        args.putString(ARG_PARAM2, param2);
+        fragment.setArguments(args);
+        return fragment;
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        if (getArguments() != null) {
+            mParam1 = getArguments().getString(ARG_PARAM1);
+            mParam2 = getArguments().getString(ARG_PARAM2);
+        }
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+                             Bundle savedInstanceState) {
+        // Inflate the layout for this fragment
+        return inflater.inflate(R.layout.app_fragment_blank, container, false);
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/one/nem/lacerta/MainActivity.java b/app/src/main/java/one/nem/lacerta/MainActivity.java
index 1e990f71..c6e95e23 100644
--- a/app/src/main/java/one/nem/lacerta/MainActivity.java
+++ b/app/src/main/java/one/nem/lacerta/MainActivity.java
@@ -1,14 +1,32 @@
 package one.nem.lacerta;
 
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.fragment.app.FragmentManager;
+import androidx.navigation.NavController;
+import androidx.navigation.fragment.NavHostFragment;
+import androidx.navigation.ui.NavigationUI;
 
 import android.os.Bundle;
 
+import com.google.android.material.bottomnavigation.BottomNavigationView;
+
 public class MainActivity extends AppCompatActivity {
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+
+        // デバッグ
+        FragmentManager supportFragmentManager = getSupportFragmentManager();
+        NavHostFragment navHostFragment =
+                (NavHostFragment) supportFragmentManager.findFragmentById(R.id.nav_host_fragment);
+        NavController navController = navHostFragment.getNavController();
+        BottomNavigationView bottomNav = findViewById(R.id.nav_view);
+
+        NavigationUI.setupWithNavController(bottomNav, navController);
+
+        // デバッグ
+
     }
 }
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 6f43c270..ccf4c200 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -8,21 +8,26 @@
 
 
     <androidx.fragment.app.FragmentContainerView
-        android:id="@+id/fragmentContainerView2"
+        android:id="@+id/nav_host_fragment"
         android:name="androidx.navigation.fragment.NavHostFragment"
         android:layout_width="match_parent"
-        android:layout_height="match_parent"
+        android:layout_height="0dp"
+        app:defaultNavHost="true"
+        app:layout_constraintBottom_toTopOf="@id/nav_view"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+
+        app:layout_constraintTop_toTopOf="parent"
+        app:navGraph="@navigation/app_nav_graph" />
+
+    <com.google.android.material.bottomnavigation.BottomNavigationView
+        android:id="@+id/nav_view"
+        android:layout_width="0dp"
+        android:layout_height="wrap_content"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent"
-
-        app:defaultNavHost="true"
-        app:navGraph="@navigation/app_nav_graph"/>
-
-    <com.google.android.material.bottomnavigation.BottomNavigationView
-        android:layout_width="match_parent"
-        android:layout_height="match_parent" >
+        app:menu="@menu/bottom_menu">
 
 
     </com.google.android.material.bottomnavigation.BottomNavigationView>
diff --git a/app/src/main/res/layout/app_fragment_blank.xml b/app/src/main/res/layout/app_fragment_blank.xml
new file mode 100644
index 00000000..f397bdba
--- /dev/null
+++ b/app/src/main/res/layout/app_fragment_blank.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".AppBlankFragment">
+
+    <!-- TODO: Update blank fragment layout -->
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:text="@string/hello_blank_fragment" />
+
+</FrameLayout>
\ No newline at end of file
diff --git a/app/src/main/res/menu/bottom_menu.xml b/app/src/main/res/menu/bottom_menu.xml
index dac74b82..b22aa058 100644
--- a/app/src/main/res/menu/bottom_menu.xml
+++ b/app/src/main/res/menu/bottom_menu.xml
@@ -2,7 +2,11 @@
 <menu xmlns:android="http://schemas.android.com/apk/res/android">
 
     <item
-        android:id="@+id/homeTestUi"
-        android:title="HomeTestUi" />
+        android:id="@id/ui_home_nav_graph"
+        android:title="HomeTestUi"/>
+
+    <item
+        android:id="@id/appBlankFragment"
+        android:title="app_fragment_blank"/>
 
 </menu>
\ No newline at end of file
diff --git a/app/src/main/res/navigation/app_nav_graph.xml b/app/src/main/res/navigation/app_nav_graph.xml
index 8941863b..e1fa1c2f 100644
--- a/app/src/main/res/navigation/app_nav_graph.xml
+++ b/app/src/main/res/navigation/app_nav_graph.xml
@@ -1,14 +1,23 @@
 <?xml version="1.0" encoding="utf-8"?>
 <navigation xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
     android:id="@+id/app_nav_graph"
-    app:startDestination="@id/placeholder">
+    app:startDestination="@id/appBlankFragment">
 
     <include app:graph="@navigation/ui_home_nav_graph" />
-    <fragment android:id="@+id/placeholder" >
+    <fragment
+        android:id="@+id/homeTestUi2"
+        android:name="one.nem.ui.home.HomeTestUi"
+        android:label="HomeTestUi" />
+    <fragment
+        android:id="@+id/appBlankFragment"
+        android:name="one.nem.lacerta.AppBlankFragment"
+        android:label="app_fragment_blank"
+        tools:layout="@layout/app_fragment_blank" >
         <action
-            android:id="@+id/action_placeholder_to_ui_home_nav_graph"
-            app:destination="@id/ui_home_nav_graph" />
+            android:id="@+id/action_appBlankFragment_to_homeTestUi22"
+            app:destination="@id/homeTestUi2" />
     </fragment>
 
 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index b3b9e87e..b23abf1a 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1,3 +1,5 @@
 <resources>
     <string name="app_name">Lacerta</string>
+    <!-- TODO: Remove or change this placeholder text -->
+    <string name="hello_blank_fragment">Hello blank fragment</string>
 </resources>
\ No newline at end of file
diff --git a/ui/home/build.gradle b/ui/home/build.gradle
index def6ac92..cd929f1f 100644
--- a/ui/home/build.gradle
+++ b/ui/home/build.gradle
@@ -3,7 +3,7 @@ plugins {
 }
 
 android {
-    namespace 'one.nem.lacerta.ui.home'
+    namespace 'one.nem.ui.home'
     compileSdk 33
 
     defaultConfig {
diff --git a/ui/home/src/main/res/layout/fragment_home_test_ui.xml b/ui/home/src/main/res/layout/fragment_home_test_ui.xml
index 09d8de78..d1e581e5 100644
--- a/ui/home/src/main/res/layout/fragment_home_test_ui.xml
+++ b/ui/home/src/main/res/layout/fragment_home_test_ui.xml
@@ -11,4 +11,10 @@
         android:layout_height="match_parent"
         android:text="@string/hello_blank_fragment" />
 
+    <Button
+        android:id="@+id/button"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Button" />
+
 </FrameLayout>
\ No newline at end of file