Ijô kôbi: Yoromeku shikijôshû(異常交尾　よろめく色情臭)

A serious, bewitching and erotic world woven by vampire sisters Yuri and Sen. An aggressive lily seeking man's blood to gain ecstasy. On the other hand, Sen cannot abandon his feelings for humans and lives in distress. Sen is even more confused when he meets a young man. However, her instinct aches and she finally has sex, but she cannot satisfy her thirst and Sen ...