diff --git a/src/main/java/org/ntlab/nemophila/models/accounts/AccountManager.java b/src/main/java/org/ntlab/nemophila/models/accounts/AccountManager.java
index c8ecfb5..fcd3676 100644
--- a/src/main/java/org/ntlab/nemophila/models/accounts/AccountManager.java
+++ b/src/main/java/org/ntlab/nemophila/models/accounts/AccountManager.java
@@ -1,4 +1,28 @@
 package org.ntlab.nemophila.models.accounts;
 
-public class AccountManager {
+import java.util.HashMap;
+import java.util.UUID;
+
+public class AccountManager<String> {
+    private static AccountManager theInstance = null;
+    private HashMap<String,Account> accountsMap = new HashMap<>();
+    public static AccountManager getInstance() {
+        if(theInstance == null){
+            theInstance = new AccountManager();
+        }
+        return theInstance;
+    }
+    public Account getAccount(String id){
+        return accountsMap.get(id);
+    }
+    public void createAccount(String name, String pw){
+        UUID uuid = UUID.randomUUID();
+        String id = (String) uuid.toString();
+        Account ac = new Account();
+        accountsMap.put(id, ac);
+
+    }
+    public Account updateAccount(String id, String pw) {
+        return null;
+    }
 }