diff --git a/june/forms/account.py b/june/forms/account.py
index 3a6b106..49c70c2 100644
--- a/june/forms/account.py
+++ b/june/forms/account.py
@@ -21,7 +21,7 @@
 RESERVED_WORDS = [
     'root', 'admin', 'bot', 'robot', 'master', 'webmaster',
     'account', 'people', 'user', 'users', 'project', 'projects',
-    'search', 'action', 'favorite', 'like', 'love',
+    'search', 'action', 'favorite', 'like', 'love', 'none',
     'team', 'teams', 'group', 'groups', 'organization',
     'organizations', 'package', 'packages', 'org', 'com', 'net',
     'help', 'doc', 'docs', 'document', 'documentation', 'blog',
diff --git a/june/models/account.py b/june/models/account.py
index b795d42..32e58b7 100644
--- a/june/models/account.py
+++ b/june/models/account.py
@@ -5,7 +5,7 @@
 from werkzeug import security
 from ._base import db, JuneQuery, SessionMixin
 
-__all__ = ['Account']
+__all__ = ['Account', 'NonAccount']
 
 
 class Account(db.Model, SessionMixin):
@@ -84,3 +84,19 @@ def change_password(self, raw):
         self.password = self.create_password(raw)
         self.token = self.create_token()
         return self
+
+
+class NonAccount(object):
+    """Non Account is a model designed for the deleted account.
+    Since the account is deleted, the topics and replies will has no
+    account related to them, in such cases, a `NonAccount` is used."""
+
+    username = 'none'
+    is_staff = False
+    is_admin = False
+
+    def __str__(self):
+        return 'none'
+
+    def __repr__(self):
+        return '<NonAccount: none>' % self.username