diff --git a/src/main/java/org/ntlab/acanthus_server/models/Gallery.java b/src/main/java/org/ntlab/acanthus_server/models/Gallery.java
index 0f73498..a5c3e1c 100644
--- a/src/main/java/org/ntlab/acanthus_server/models/Gallery.java
+++ b/src/main/java/org/ntlab/acanthus_server/models/Gallery.java
@@ -2,6 +2,7 @@
 
 import org.ntlab.acanthus_server.entities.Account;
 import org.ntlab.acanthus_server.entities.Animation;
+import org.ntlab.acanthus_server.entities.Work;
 
 import java.util.*;
 import java.util.ArrayList;
@@ -65,6 +66,7 @@
         var aid = new Random().nextInt();
         var newAnimation = new Animation(aid, animationName, owner);
         animationHashMap.put(aid,newAnimation);
+        owner.getWorkHashMap().put(aid, new Work(newAnimation));
         newAnimation.setName(animationName);
         return aid;
     }
diff --git a/src/main/java/org/ntlab/acanthus_server/resources/gallery/InvitesRest.java b/src/main/java/org/ntlab/acanthus_server/resources/gallery/InvitesRest.java
index eb3a411..ce86f18 100644
--- a/src/main/java/org/ntlab/acanthus_server/resources/gallery/InvitesRest.java
+++ b/src/main/java/org/ntlab/acanthus_server/resources/gallery/InvitesRest.java
@@ -90,8 +90,8 @@
         }
 
         //既に招待されているかのチェック
-        for (var invite : invitedAccount.getInvitedMap().values()) {
-            if(invite.isInviting()){
+        for (Account account : animation.getInvites()) {
+            if (account.getUid() == Integer.parseInt(invitedUid)) {
                 var response = Response.status(401).entity("既にユーザーを招待しています.");
                 throw new WebApplicationException(response.build());
             }