Headmaster

Kaien Cross (黒主 灰閻理事長 Kurosu Kaien) is over 200 years old, the oldest and most powerful known vampire hunter, nicknamed "The Fangless Vampire". In spite of being a vampire hunter, Kaien maintained friendships with several Pureblood vampire families, especially the Kurans. Kaien adopted Yuki and also took Zero into his home after his parents were murdered by Shizuka Hio. When Kaien retired as a vampire hunter (due in part to a promise he made to Yuki's mother) and became the Headmaster of Cross Academy, he established the Day Class and Night Class with Kaname Kuran with dreams of promoting peace between humans and vampires. He later becomes the president of the vampire association. Kaien is an eccentric character who often provokes Zero and irritates other characters with his silly mannerisms, though he is a serious character when it comes to matters he cares about. He carries a hidden anti-vampire weapon, which he uses to fight against the President of the Hunters' Association who had turned corrupt from drinking Rido Kuran's blood.