diff --git a/src/main/java/org/ntlab/acanthus_server/entities/Animation.java b/src/main/java/org/ntlab/acanthus_server/entities/Animation.java
index 7506d45..63366ee 100644
--- a/src/main/java/org/ntlab/acanthus_server/entities/Animation.java
+++ b/src/main/java/org/ntlab/acanthus_server/entities/Animation.java
@@ -12,7 +12,6 @@
 import org.ntlab.acanthus_server.entities.Position;
 import org.ntlab.acanthus_server.entities.Stroke;
 
-import java.lang.reflect.Array;
 import java.time.LocalDateTime;
 import java.time.format.DateTimeFormatter;
 import java.util.ArrayList;
@@ -76,8 +75,9 @@
     //private Accounts accounts = Accounts.getInstance();
 
     // page情報
-    public ArrayList<Page> getPages() {
-        return (ArrayList<Page>) this.pageMap.values();
+    private ArrayList<Page> pages = new ArrayList<>();
+    public Collection<Page> getPages() {
+        return this.pageMap.values();
     }
 
     //-----------------------------------------------------------------
@@ -222,6 +222,10 @@
 
         //this.lastAccess = LocalDateTime.of(2015, 12, 15,  0,  0);
 
+        // pageとlayerを1枚ずつ追加
+        this.pages.add(new Page());
+        this.pages.get(0).getLayers().add(new Layer());
+
         var newWork = new Work(); //ユーザーの制作作品の作成
 
         newWork.setWork();