Kagari

Kagari is a handsome vampire who can turn into a black wolf. He is taken care of by his companion Seto Ashiya who gives him his blood to eat. He refused to live with humans because they die first until he met Seto who promised that before he died he would exorcise him. Kagari disapproves of Seto039s plan to give his body to his little sister but doesn039t object to it. He can play the piano but doesn039t say who it was that taught him claiming that quothe is dead now.quot He acts cold towards Mikuzu claiming that even though he doesn039t like Mikuzu he doesn039t mind being around her. He039s only shown her a true smile at the end of the book for a second. Kagari only allows Seto to treat him like a dog and use him as he wills. Source: Wikipedia