Yougen no Chi

Ryuunosuke hails from a prestigious clan, but his own life is unremarkable - that is, until he uncovers a remarkable secret. After receiving a mysterious vampire doll from his senior, an accident awakens the doll with his spilled blood. Following the sudden death of a close colleague, Ryuunosuke also finds himself accompanied by a stunning, carnivorous girl. As he navigates his newfound circumstances, these two enigmatic girls aid Ryuunosuke in mastering the dark forces lurking within his blood, while he strives to unravel the truth behind his existence.