Jooubachi: Vampire Queen Bee

Ichiro, is a young calm boy passionated by animals and insects. But he is constantly bullied by his schoolmates. He discovers a new lifestyle when he meets Riko, the queen of bees, who belongs to a vampire clan. Ichiro gets bitten by her and becomes a "worker bee" and discovers new powers that will change his being. But there can be only one queen, and numerous girls desire to become one too...