Kenta sees Karin every day at both work and school, so each day serves as a reminder that something about the girl with the oft-bloody nose just isn't right. He's suspicious, and he's not exactly subtle about it. Fearing that he might discover her secret, Karin decides to kill this potential problem with kindness, going out of her way to do all kinds of nice things for him. However, when Kenta catches her "feeding" yet again, the gig is up. So what's a vampire girl to do?