diff --git a/app/src/main/java/org/ntlab/amaryllis/client/Amaryllis.java b/app/src/main/java/org/ntlab/amaryllis/client/Amaryllis.java
index 12ce8ba..bebc9ad 100644
--- a/app/src/main/java/org/ntlab/amaryllis/client/Amaryllis.java
+++ b/app/src/main/java/org/ntlab/amaryllis/client/Amaryllis.java
@@ -16,6 +16,7 @@
     private String uid = null;
     private String password=null;
     private String name = null;
+    private String new_introduction = null;
     private Location location;
     private ArrayList<PlayListListener> playListListeners;
     private int index=0;
@@ -74,12 +75,28 @@
         return name;
     }
 
+    public void setIntroduction(String new_introduction) {
+        SharedPreferences prefData = getSharedPreferences("pref_data", MODE_PRIVATE);
+        SharedPreferences.Editor editor = prefData.edit();
+        editor.putString("new_introduction", new_introduction);
+        editor.commit();
+    }
+
+    public String getIntroduction() {
+        if(new_introduction == null){
+            SharedPreferences prefData = getSharedPreferences("pref_data", MODE_PRIVATE);
+            new_introduction = prefData.getString("new_introduction", "");
+        }
+        return new_introduction;
+    }
+
     public void setToken(String token) {
         SharedPreferences prefData = getSharedPreferences("pref_data", MODE_PRIVATE);
         SharedPreferences.Editor editor = prefData.edit();
         editor.putString("token", token);
         editor.commit();
     }
+
     public String getToken() {
         if(token == null){
             SharedPreferences prefData = getSharedPreferences("pref_data", MODE_PRIVATE);