diff --git a/app/src/main/java/com/example/citrusclient/views/MyBookshelfAdapter.java b/app/src/main/java/com/example/citrusclient/views/MyBookshelfAdapter.java
deleted file mode 100644
index 145a274..0000000
--- a/app/src/main/java/com/example/citrusclient/views/MyBookshelfAdapter.java
+++ /dev/null
@@ -1,52 +0,0 @@
-package com.example.citrusclient.views;
-
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.Button;
-import android.widget.ImageView;
-import android.widget.TextView;
-
-import androidx.annotation.NonNull;
-import androidx.recyclerview.widget.RecyclerView;
-
-import com.example.citrusclient.R;
-
-import java.util.List;
-
-public class MyBookshelfAdapter extends RecyclerView.Adapter<MyBookshelfAdapter.MyBookViewHolder>{
-
-    private List<MyBookshelfFragment.RowBook> bookList;
-
-    MyBookshelfAdapter(List<MyBookshelfFragment.RowBook> book){
-        this.bookList = book;
-    }
-
-    @NonNull
-    @Override
-    public MyBookViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
-        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.a_book, parent, false);
-        return new MyBookViewHolder(view);
-    }
-
-    @Override
-    public void onBindViewHolder(@NonNull MyBookViewHolder holder, int position) {
-        MyBookshelfFragment.RowBook bookData = this.bookList.get(position);
-        holder.bookButton.setText(bookData.hogeTitle);
-        holder.bookButton.setBackgroundColor(bookData.color);
-    }
-
-    @Override
-    public int getItemCount() {
-        return bookList.size();
-    }
-
-    static class MyBookViewHolder extends RecyclerView.ViewHolder{
-        Button bookButton;
-        public MyBookViewHolder(@NonNull View itemView) {
-            super(itemView);
-            bookButton = itemView.findViewById(R.id.book_button);
-        }
-    }
-
-}