diff --git a/.idea/deploymentTargetDropDown.xml b/.idea/deploymentTargetDropDown.xml
index 69e56fe..10746e9 100644
--- a/.idea/deploymentTargetDropDown.xml
+++ b/.idea/deploymentTargetDropDown.xml
@@ -7,11 +7,11 @@
         <deviceKey>
           <Key>
             <type value="VIRTUAL_DEVICE_PATH" />
-            <value value="C:\Users\student\.android\avd\Pixel_2_API_30_2.avd" />
+            <value value="C:\Users\student\.android\avd\Pixel_3_API_28.avd" />
           </Key>
         </deviceKey>
       </Target>
     </targetSelectedWithDropDown>
-    <timeTargetWasSelectedWithDropDown value="2023-06-13T07:48:15.183956700Z" />
+    <timeTargetWasSelectedWithDropDown value="2023-06-15T06:31:14.869908800Z" />
   </component>
 </project>
\ No newline at end of file
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index bdd5b80..43cf19a 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -39,12 +39,12 @@
             android:exported="true"
             android:label="@string/title_activity_sign_up">
 
-<!--             <intent-filter>-->
-<!--             <action android:name="android.intent.action.MAIN" />-->
+             <intent-filter>
+             <action android:name="android.intent.action.MAIN" />
 
 
-<!--             <category android:name="android.intent.category.LAUNCHER" />-->
-<!--             </intent-filter>-->
+             <category android:name="android.intent.category.LAUNCHER" />
+             </intent-filter>
         </activity>
         <activity
             android:name=".LoginActivity"
@@ -68,11 +68,11 @@
             android:name=".MyPageActivity"
             android:exported="true"
             android:label="@string/title_activity_my_page">
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
+<!--            <intent-filter>-->
+<!--                <action android:name="android.intent.action.MAIN" />-->
 
-                <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
+<!--                <category android:name="android.intent.category.LAUNCHER" />-->
+<!--            </intent-filter>-->
         </activity>
 
         <meta-data
@@ -94,11 +94,11 @@
             android:name=".TestActivity"
             android:exported="true"
             android:label="@string/title_activity_test">
-            <intent-filter>
-                <action android:name="android.intent.action.MAIN" />
+<!--            <intent-filter>-->
+<!--                <action android:name="android.intent.action.MAIN" />-->
 
-                <category android:name="android.intent.category.LAUNCHER" />
-            </intent-filter>
+<!--                <category android:name="android.intent.category.LAUNCHER" />-->
+<!--            </intent-filter>-->
         </activity>
 
         <activity
diff --git a/app/src/main/java/com/example/nemophila/TestActivity.java b/app/src/main/java/com/example/nemophila/TestActivity.java
index 3b2af0b..e5793d0 100644
--- a/app/src/main/java/com/example/nemophila/TestActivity.java
+++ b/app/src/main/java/com/example/nemophila/TestActivity.java
@@ -57,8 +57,8 @@
                 switch (position){
                     //ここにテストしたい処理を追加する（ 0はShopsViewModel、1はAccountViewModel、2はPostsViewModel）
                     case 0:
-                        // shopsViewModel.setViewArea(20.0, 40.0, 10.0, 30.0);
-                        shopsViewModel.start(500, nemophila);
+                        shopsViewModel.setViewArea(20.0, 40.0, 10.0, 30.0);
+                        // shopsViewModel.start(500, nemophila);
                         break;
                     case 1:
                         //accountViewModel.getAccount("1111");
diff --git a/app/src/main/java/com/example/nemophila/entities/Shop.java b/app/src/main/java/com/example/nemophila/entities/Shop.java
index 9095f5a..13522f2 100644
--- a/app/src/main/java/com/example/nemophila/entities/Shop.java
+++ b/app/src/main/java/com/example/nemophila/entities/Shop.java
@@ -7,7 +7,6 @@
     private String name;
     private double longitude;
     private double latitude;
-    private ArrayList<Post> posts = new ArrayList<>();
 
     //Getter
     public String getSid() {
@@ -22,9 +21,6 @@
     public double getLatitude() {
         return  latitude;
     }
-    public ArrayList<Post> getPosts() {
-        return posts;
-    }
 
     //Setter
     public void setSid(String id) {
@@ -39,7 +35,16 @@
     public void setLatitude(double latitude) {
         this.latitude = latitude;
     }
-    public void setPosts(ArrayList<Post> posts) {
-        this.posts = posts;
+
+    @Override
+    public boolean equals(Object other) {
+        if (other == null || !(other instanceof Shop)) {
+            return false;
+        }
+        Shop shop = (Shop) other;
+        if (!this.id.equals(shop.id)) {
+            return false;
+        }
+        return true;
     }
 }
diff --git a/app/src/main/java/com/example/nemophila/viewmodels/ShopsViewModel.java b/app/src/main/java/com/example/nemophila/viewmodels/ShopsViewModel.java
index 4f0d8d3..738202d 100644
--- a/app/src/main/java/com/example/nemophila/viewmodels/ShopsViewModel.java
+++ b/app/src/main/java/com/example/nemophila/viewmodels/ShopsViewModel.java
@@ -7,6 +7,7 @@
 import com.example.nemophila.entities.Shop;
 import com.example.nemophila.resources.ShopsRest;
 
+import java.util.ArrayList;
 import java.util.Collection;
 
 import retrofit2.Call;
@@ -24,11 +25,14 @@
     private double lx;
     private double ly;
 
+    // 更新比較用
+    private Collection<Shop> shopsPreData;
+
     // ライブデータ
     final private MutableLiveData<Collection<Shop>> shopsLiveData;
 
     // コンストラクタ
-    public ShopsViewModel(){
+    public ShopsViewModel() {
         this.shopsLiveData = new MutableLiveData<>();
         this.retrofit = new Retrofit.Builder()
                 .baseUrl("http://nitta-lab-www.is.konan-u.ac.jp/nemophila/")
@@ -68,7 +72,15 @@
                 // 通信が正常に動作
                 if (response.isSuccessful()) {
                     if (response.body() != null) {
-                        shopsLiveData.setValue(response.body());  // LiveDataを書き換える
+                        // LiveDataとresponse.body()が異なるときは更新する
+                        if (shopsPreData == null || !shopsPreData.containsAll(response.body())) {
+                            System.out.println(shopsPreData);
+                            System.out.println(response.body());
+                            shopsLiveData.setValue(response.body());  // LiveDataを書き換える
+                            shopsPreData = response.body();
+                        } else {
+                            System.out.println("LiveDataとresponse.body()が一致");
+                        }
                     } else {
                         System.out.println("response null : setViewModel");
                     }