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 4d4e98a..c200f99 100644
--- a/src/main/java/org/ntlab/acanthus_server/entities/Animation.java
+++ b/src/main/java/org/ntlab/acanthus_server/entities/Animation.java
@@ -37,6 +37,9 @@
     private Gallery gallery = Gallery.getInstance();
     private Accounts accounts = Accounts.getInstance();
 
+    //-----------------------------------------------------------------
+    // setter
+
     public void setAid(Integer aid){
         this.aid = aid;
     }
@@ -58,6 +61,9 @@
         this.lastUpdate = dt.toString();
     }
 
+    //-----------------------------------------------------------------
+    // add
+
     public void addEditors(Editor editor) { this.editors.add(editor); }
 
     public void addLikes() { this.likes++; }
@@ -66,6 +72,9 @@
 
     public void addHashTag(String inputHashTag) { this.hashTag.add(inputHashTag); }
 
+    //-----------------------------------------------------------------
+    // getter
+
     public Integer getAid() { return aid; }
 
     public String getName() { return name; }
@@ -79,6 +88,11 @@
     }
 
     //-----------------------------------------------------------------
+    // remover
+
+    public void removeAnimationInvites(Account invitedAccount) { this.invites.remove(invitedAccount); }
+
+    //-----------------------------------------------------------------
     // 本当に招待されているかを確認する
     public Collection<Account> searchAnimationInvites(Integer aid, String invitedUid) {
         Animation anime_info = gallery.getAnimationInformation(aid);