In a world, where vampires are ruling, a young teenage vampire student named Haru is an infamous troublemaker in his class. As a new student arrives, he is craving for blood. Human blood. Humans were distinct centuries ago, however, Haru senses an unnerving smell form the new high school student in his class. Kenta Kano is a very special vampire. He only drinks blood from a certain blood type. Haru's blood type.