Vampire Knight, Volume 19, Paperback

Cross Academy is attended by two groups of students: the Day Class and the Night Class. At twilight, when the students of the Day Class return to their dorm, they cross paths with the Night Class on their way to school. Yuki Cross and Zero Kiryu are the Guardians of the school, protecting the Day Class from the Academy's dark secret: the Night Class is full of vampires Kaname vows to sacrifice himself. Yuki vows to sacrifice herself to stop him. Zero takes a weapon in hand to protect what is dear to him. Whether parted for eternity or close enough to touch, they each will always desire their beloved...