diff --git a/src/main/java/org/ntlab/citrusserver/repositories/BookManager.java b/src/main/java/org/ntlab/citrusserver/repositories/BookManager.java
index f0a995d..97817d0 100644
--- a/src/main/java/org/ntlab/citrusserver/repositories/BookManager.java
+++ b/src/main/java/org/ntlab/citrusserver/repositories/BookManager.java
@@ -19,12 +19,9 @@
     //本の新規作成
     public int createBook(String accountId, String title, String color, Boolean publicity)
     {
-        Account account = new Account(accountId); //仮（Account作成時に相談）
-        Book book = new Book(accountId);
-        book.setTitle(title);
-        book.setColor(color);
-        book.setPublicity(publicity);
-        account.setBookCount(); //仮（本作成時、Account側で持っている数の加算を行ってもらう）
+        Account account = new Account(); //仮（Account作成時に相談）
+        Book book = new Book(title, publicity, color);
+        account.setBookCount(); //仮（本作成時、Account側で作られた本の数の加算を行ってもらう）
         return account.getnewId(); //仮（本の数を更新し、AccountIDを返してもらう）
     }