In a time where vampire's exists, there's one vampire who rules them all. Samuru Shigami. He rules fair and he is feared by many. He may be the leader but he yearns for a mate to rule alongside him. Riki Ryuugasaki is an outcast who lived his life being bullied by the villagers however he swore to tale revenge when they chase him out of his own home and he gets it on the night on the new moon when he finds out that he is mated to a very possessive vampire. Is this Riki's chance to get revenge? what will happen now? Will they live happily ever after or will someone break them apart? More importantly, will they fall in love? (In this story their b-damans are their pet animals)