To their classmates, Fujimiya Saki and Kujou Miyoko appear to get along pretty well. But the two girls have a secret: Miyoko is a vampire always thirsty for Saki's blood, and Saki is a vampire hunter who has had enough of being teased! It's Saki's mission to kill vampires, but which will really enter Miyoko's heart first -- a wooden stake, or Saki's growing affection for her?