diff --git a/src/main/java/org/ntlab/amaryllis/server/entities/Voicememo.java b/src/main/java/org/ntlab/amaryllis/server/entities/Voicememo.java
index 47cda7f..019ae38 100644
--- a/src/main/java/org/ntlab/amaryllis/server/entities/Voicememo.java
+++ b/src/main/java/org/ntlab/amaryllis/server/entities/Voicememo.java
@@ -2,6 +2,7 @@
 
 import com.fasterxml.jackson.annotation.JsonIgnore;
 
+import java.awt.datatransfer.FlavorListener;
 import java.util.ArrayList;
 import java.util.Calendar;
 
@@ -18,7 +19,7 @@
     private Integer times;
     @JsonIgnore
     private ArrayList<String> favolist;
-    private Integer favos;//favoslistの要素数
+    private Integer favos;
     private ArrayList<String> categories;
     private ArrayList<Integer> comments_commentNo;
     private ArrayList<String> comments_uid;
@@ -38,7 +39,7 @@
         setTitle(title);
         setSummary(summary);
         this.times = 0;
-//        this.favos = 0;
+        this.favos = 0;
 //        categories = new ArrayList<>();
 //        comments_commentNo = new ArrayList<>();
 //        comments_uid = new ArrayList<>();
@@ -134,26 +135,36 @@
         times++;
     }
 
-//    public ArrayList<String> getFavolist(){ return favolist; }
-//
-//    public boolean checkFavo(String uid){
-//        for (String a : favolist) {
-//            if (a.equals(vid)) {
-//                return true;
-//            }
-//        }
-//        return false;
-//    }
-//
-//    private void addFavolist(String uid){
-//        favolist.add(uid);
-//        calcFavos();
-//    }
-//
-//    public Integer getFavos(){ return favos; }
-//    private void calcFavos(){
-//        favos = favolist.size();
-//    }
+    public ArrayList<String> getFavolist(){ return favolist; }
+
+    public boolean checkFavo(String uid){
+        for (String a : favolist) {
+            if (a.equals(vid)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    public void addFavolist(String uid){
+        if(checkFavo(uid)){
+            return;
+        }
+            favolist.add(uid);
+            setFavos();
+
+    }
+
+    public void removeFavolist(String uid) {
+        favolist.remove(uid);
+        setFavos();
+    }
+
+    public Integer getFavos(){ return favos; }
+
+    private void setFavos(){
+        favos = favolist.size();
+    }
 //
 //    public ArrayList<String> getCategory(){ return categories; }
 //