Long-haired high school pretty boy Mizushima (male model and actor Takumi Saito) is given Valentine's Day chocolate by new transfer student Monami Alucard. After taking a bite, he starts tripping big time and seeing disembodied circulatory systems walking around campus. That's because Monami is a Vampire Girl, and the chocolate contained some of her special vampire blood. Monami wants Mizushima for her own; the only problem is that Mizushima has already been claimed by Keiko (Eri Otoguro of Chambara Beauty), leader of a gothic lolita clique and daughter of the school's timid vice principal (Kanji Tsuda).