The main female protagonist and the supreme ruler of the Demon Realm. Soon after Demon Queen and the Hero join forces, she sets for the Human Realm, disguising herself as a human noblewoman known as the Crimson Scholar and sharing a part of her vast knowledge with the Human society to help improve their civilization The Demon King is a woman of average height. She has (detachable) horns and long, flowing red hair reaching some way down past her shoulders. Like her hair, she has deep, ruby-eyes