Yuki Cross can’t remember anything earlier than the day ten years ago when she was saved from a vampire attack by Pureblood vampire Kaname Kuran. Now Yuki, along with her partner, Zero, is a Guardian at Cross Academy, where two groups of students, the Day Class and the Night Class, coexist in relative harmony—despite the fact the Night Class students are all vampires! But their peaceful existence is threatened when Yuki’s memories of a bloodstained past begin to emerge and a dark shadow of evil looms ever closer!