Freelance photographer Kouhei Morioka is traveling to a castle in Germany to take photos of paranormal activity for his friend Hiromi Anzai, editor of an occult magazine. Upon entering the castle, he's confronted by a young girl in a white dress and cat ears who calls herself Hazuki. She takes a keen interest in Kouhei and offers him a kiss, but she instead reveals herself to be a vampire, sucks his blood, and turns...