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Nicol Strach descends on a research lab, sent by a special organization working for the Vatican. On his way to find his target, he runs across a young girl named Kagura, the sole survivor of the vampire attack that claimed the lives of all of the local researchers. Together, they try their best to escape in a blaze of gunfire – but just who is Kagura, and what is Nicol's true mission?
The high school girl, Kijima's career aspiration is to become a vampire…? Can the vampire teacher, Hazama, resist his desire (appetite) in a thrilling situation where it would be a crime if he were to put his hand on her?