diff --git a/app/src/main/java/com/example/nemophila/MyPageActivity.java b/app/src/main/java/com/example/nemophila/MyPageActivity.java
index 502a50b..f90011a 100644
--- a/app/src/main/java/com/example/nemophila/MyPageActivity.java
+++ b/app/src/main/java/com/example/nemophila/MyPageActivity.java
@@ -1,5 +1,6 @@
 package com.example.nemophila;
 
+import androidx.annotation.NonNull;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.lifecycle.Observer;
 import androidx.lifecycle.ViewModelProvider;
@@ -99,22 +100,22 @@
             }
         });
 
-        /* ここからあんまわかっていない */
         RecyclerView rv = findViewById(R.id.postsList);
         LinearLayoutManager llm = new LinearLayoutManager(this);
         List<MyPageActDataModel> myPageActDataset = new ArrayList<>();
         MyPageActAdapter adapter = new MyPageActAdapter(myPageActDataset) {
+            // 「（投稿）削除」ボタンを押した後、「Yes」を押すと対象の投稿を削除する
             @Override
             void onDeleteButtonClick(View view, int position, MyPageActDataModel dataModel) {
                 new AlertDialog.Builder(MyPageActivity.this)
                         .setTitle("警告")
-                        .setMessage("この投稿を削除しますか？")
+                        .setMessage("この投稿を削除しますか？\n削除すると元に戻せなくなります！")
                         .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
                             @Override
                             public void onClick(DialogInterface dialogInterface, int i) {
-                                Toast.makeText(MyPageActivity.this, dataModel.getPid(), Toast.LENGTH_SHORT).show();
+                                Toast.makeText(MyPageActivity.this, "投稿を削除しました。", Toast.LENGTH_SHORT).show();
                                 System.out.println("投稿を削除しました。");
-//                                accountViewModel.deleteAccountPost(dataModel.getSid(), uid, dataModel.getPid(), token);
+                                accountViewModel.deleteAccountPost(uid, dataModel.getPid(), token);
                             }
                         })
                         .setNegativeButton("No", null)
@@ -127,6 +128,7 @@
         rv.setLayoutManager(llm);
         rv.setAdapter(adapter);
 
+        // getAccountPostsLiveDataとの通信により今までにユーザーがしている投稿を表示する
         accountViewModel.getAccountPosts(uid);
         accountViewModel.getAccountPostsLiveData().observe(this, new Observer <Collection<Post>>() {
             @Override
@@ -149,6 +151,7 @@
                     data.setRate(strRate);
                     data.setGenre(post.getGenre());
                     data.setComment(post.getComment());
+                    data.setPid(post.getPid());
                     myPageActDataset.add(data);
                 }
 
@@ -168,7 +171,7 @@
         public MyPageActAdapter(List<MyPageActDataModel> list) { this.list = list; }
 
         @Override
-        public MyPageActViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+        public MyPageActViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
             View inflate = LayoutInflater.from(parent.getContext()).inflate(R.layout.layout_my_page_activity_posts, parent,false);
             MyPageActViewHolder vh = new MyPageActViewHolder(inflate);
 
@@ -184,7 +187,7 @@
         }
 
         @Override
-        public void onBindViewHolder(MyPageActViewHolder holder, int position) {
+        public void onBindViewHolder(@NonNull MyPageActViewHolder holder, int position) {
             holder.dateView.setText(list.get(position).getDate());
             holder.rateView.setText(list.get(position).getRate());
             holder.genreView.setText(list.get(position).getGenre());
@@ -205,7 +208,7 @@
         public TextView commentView;
         public ImageButton deleteButton;
 
-        public MyPageActViewHolder(View view) {
+        public MyPageActViewHolder(@NonNull View view) {
             super(view);
             dateView = (TextView) view.findViewById(R.id.date);
             rateView = (TextView) view.findViewById(R.id.rate);
@@ -216,12 +219,11 @@
     }
 
     // DataModel
-    public class MyPageActDataModel {
+    public static class MyPageActDataModel {
         private String date;
         private String rate;
         private String genre;
         private String comment;
-        private String sid;
         private String pid;
 
         public String getDate() {
@@ -252,9 +254,6 @@
             this.comment = comment;
         }
 
-        public String getSid() { return sid; }
-        public void setSid(String sid) { this.sid = sid; }
-
         public String getPid() { return pid; }
         public void setPid(String sid) { this.pid = pid; }
     }
diff --git a/app/src/main/java/com/example/nemophila/resources/AccountsRest.java b/app/src/main/java/com/example/nemophila/resources/AccountsRest.java
index a3bf6ff..02a6203 100644
--- a/app/src/main/java/com/example/nemophila/resources/AccountsRest.java
+++ b/app/src/main/java/com/example/nemophila/resources/AccountsRest.java
@@ -71,9 +71,8 @@
     );
 
     @FormUrlEncoded
-    @POST("shops/{sid}/posts/{uid}/{pid}")
+    @POST("accounts/{uid}/posts/{pid}")
     Call<Void> deletePost(
-            @Path("sid") String sid,
             @Path("uid") String uid,
             @Path("pid") String pid,
             @Field("token") String token
diff --git a/app/src/main/java/com/example/nemophila/viewmodels/AccountViewModel.java b/app/src/main/java/com/example/nemophila/viewmodels/AccountViewModel.java
index 3216931..300fbe7 100644
--- a/app/src/main/java/com/example/nemophila/viewmodels/AccountViewModel.java
+++ b/app/src/main/java/com/example/nemophila/viewmodels/AccountViewModel.java
@@ -6,6 +6,7 @@
 import com.example.nemophila.R;
 import com.example.nemophila.entities.Account;
 import com.example.nemophila.entities.AccountJson;
+import com.example.nemophila.entities.AccountNameJson;
 import com.example.nemophila.entities.Post;
 import com.example.nemophila.entities.PostJson;
 import com.example.nemophila.resources.AccountsRest;
@@ -211,13 +212,14 @@
     }
 
     // 対象のアカウントがした投稿の削除
-    public void deleteAccountPost(String sid, String uid, String pid, String token) {
-        Call<Void> call = accountsRest.deletePost(sid, uid, pid, token);
+    public void deleteAccountPost(String uid, String pid, String token) {
+        Call<Void> call = accountsRest.deletePost(uid, pid, token);
 
         call.enqueue(new Callback<Void>() {
             @Override
             public void onResponse(Call<Void> call, Response<Void> response) {
                 if (response.isSuccessful()) {
+                    deleteAccountPostLiveData(pid);
                     System.out.println("successful");
                 } else {
                     System.out.println("response error");
@@ -229,4 +231,15 @@
             }
         });
     }
+
+    private void deleteAccountPostLiveData(String id) {
+        ArrayList<Post> preData = new ArrayList<>();
+        for (Post post: accountPostsLiveData.getValue()) {
+            if (post.getPid().equals(id)) {
+                continue;
+            }
+            preData.add(post);
+        }
+        accountPostsLiveData.setValue(preData);
+    }
 }
diff --git a/app/src/main/java/com/example/nemophila/viewmodels/PostsViewModel.java b/app/src/main/java/com/example/nemophila/viewmodels/PostsViewModel.java
index bb4252c..2985f6a 100644
--- a/app/src/main/java/com/example/nemophila/viewmodels/PostsViewModel.java
+++ b/app/src/main/java/com/example/nemophila/viewmodels/PostsViewModel.java
@@ -129,4 +129,12 @@
             }
         });
     }
+
+    public ArrayList<String> getUserIds() {
+        ArrayList<String> ids = new ArrayList<>();
+        for(Post post: shopPostsLiveData.getValue()) {
+            ids.add(post.getUid());
+        }
+        return ids;
+    }
 }
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 e0a8dc9..c31459d 100644
--- a/app/src/main/java/com/example/nemophila/viewmodels/ShopsViewModel.java
+++ b/app/src/main/java/com/example/nemophila/viewmodels/ShopsViewModel.java
@@ -154,23 +154,23 @@
         });
     }
 
-                // 新しく店を生成する
-        public void createShop (String name,double longitude, double latitude){
-            Call<Shop> call = shopsRest.createShop(name, longitude, latitude);
+    // 新しく店を生成する
+    public void createShop (String name,double longitude, double latitude){
+        Call<Shop> call = shopsRest.createShop(name, longitude, latitude);
 
-            call.enqueue(new Callback<Shop>() {
-                @Override
-                public void onResponse(Call<Shop> call, Response<Shop> response) {
-                    if (response.isSuccessful()) {
-                        currentShopLiveData.setValue(response.body());
-                    }
+        call.enqueue(new Callback<Shop>() {
+            @Override
+            public void onResponse(Call<Shop> call, Response<Shop> response) {
+                if (response.isSuccessful()) {
+                    currentShopLiveData.setValue(response.body());
                 }
+            }
 
-                @Override
-                public void onFailure(Call<Shop> call, Throwable t) {
-                    System.out.println("通信失敗 : createShop");
-                    System.out.println(t);
-                }
-            });
-        }
+            @Override
+            public void onFailure(Call<Shop> call, Throwable t) {
+                System.out.println("通信失敗 : createShop");
+                System.out.println(t);
+            }
+        });
     }
+}