A teenage girl discovers a mysterious man at her school late at night who claims to be a vampire. She faints and later searches the town to find him, discovering he has killed two yakuza. She confronts him on the rooftop again and he admits to being Crowley the III, a vampire. He kills without remorse. A new detective arrives in town to investigate the killings, while the girl continues her training, determined to find the truth about Crowley and avenge her family's death years ago.