High Quality Content by WIKIPEDIA articles! The episodes of the Vampire Knight anime are based on the manga series of the same name written by Matsuri Hino. They are directed by Kiyoko Sayama, and produced by Studio Deen and Nihon Ad Systems. The plot of the episodes follows Yuki Cross, a student at the Cross Academy, where she acts as a guardian of the "Day Class" along with vampire hunter Zero Kiryuu from the secret vampires of the "Night Class" led by Kaname Kuran.