You were in the Hall of that damn mansion, you were forced to come with your sister Yui. At that moment, one of the vampires from that mansion where you and your sister were forced to come by your father, who arrives in the Hall is Ayato Sakamaki he is the first of the brothers to appear in the series. Extremely possessive, the boy proclaims Yui as his. He can consider himself the main male character, either for his relationship with the albino woman, as well as for his unpredictable actions.