Vampire Knight Episode 6

Yagari explains that he is Zero's teacher, and sacrificed one of his eyes to save him in the past. He prepares to kill Zero, and Yuki shields him. Kaien arrives and convinces Yagari to leave. The following day, Zero is missing from class and Yagari tells Yuki that he isolated Zero in the headmaster's guest room. Yuki goes to Zero, and he describes a previous incident he had with a Level E before drinking more of Yuki's blood. Later, Yuki meets Kaname, who realizes that Zero drank Yuki's blood. Yagari arrives and asks Kaname why he has not killed Zero. Kaname replies that he fears he would lose Yuki's affection if he did so. The following day, Zero and Yagari are absent from class, and Yuki finds Yagari pointing his gun at Zero again. Yuki convinces Yagari to leave, and he tells Zero that Shizuka Hio is still alive.