More often than not, he will turn to his demon side for power to save him. Beware the Nice Ones: Yuuri is one of the nicest rulers in existence.However, if you hit one of the above berserk buttons, well. Can't Stay Normal: When Yuuri runs home after being betrayed by Sara, Bob sends him into an alternative universe where Yuuri and Shouri have normal, everyday lives.Yuuri chooses to trust Sara and return to the Mazoku world. Curtains Match the Window: A sign that he's nobility in the demon world.Double Consciousness: The Yuuri who is Demon King and the Yuuri who is an average schoolkid.