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!
Vampire Knight Limited Edition, Vol. 19, by Matsuri Hino (Oct 14, 2014). Yuko has stolen Zero's memories of her to free him. She plans to give up her own life to turn Kaname into a human, but Kaname has vowed to sacrifice himself to give the Hunter Society his powers. With eternity at stake, Yuki and Kaname each vie to change the other's destiny.