Episode 6

TL;DR

Yagari, Zero’s former mentor and a renowned vampire hunter, confronts Zero about his deteriorating state and readiness to face his fate as a vampire. While Yuki intervenes to protect Zero, Yagari recounts his past sacrifices, including losing his eye to save Zero during a traumatic encounter with a Level E vampire. Struggling with guilt and his growing thirst for blood, Zero resigns himself to his fate, but Yuki refuses to let him give up, offering her blood to keep him from succumbing to his instincts. Meanwhile, Yagari questions Kaname’s motives for sparing Zero, to which Kaname reveals it is to avoid losing Yuki. Later, Yagari tests Zero’s resolve, urging him to fight his fate, and cryptically reveals that "that woman" is still alive, leaving Zero shaken yet determined not to run away.

Recap

In a flashback, young Zero asks Yagari why vampires harm people. Yagari explains they are pitiable creatures driven by uncontrollable instincts, which is why hunters like him exist to stop them. In the present, Yagari warns Zero that the anti-vampire spell on his bullet will cause pain even from a graze and questions whether Zero is ready to face his fate. Resigned, Zero prepares to die by Yagari’s hand, but Yuki intervenes. Despite Zero's protests, Cross arrives to stop Yagari, who reveals himself as Zero’s former teacher during his time as a vampire hunter. Later, Yuki, tormented by the knowledge that Zero’s inability to take blood tablets will likely lead him to deteriorate into a Level E vampire, breaks down in tears.

When Yuki notices Zero’s absence in class, she confronts Yagari, who says Zero is in isolation to prevent him from harming anyone. During an ethics class with the Night Class, Yagari’s reputation as the top vampire hunter draws suspicion, especially when Kaname asks if Yagari intends to kill someone among them. Yagari quips he could add Kaname to his list if he sleeps during class, angering the Night Class. After blocking a knife thrown at him by a Night Class student, Yagari encounters Yuki, who refuses to leave until he tells her Zero’s location. He directs her to Cross’s guest room, where she finds Zero. Zero explains Yagari was once the guardian and teacher for him and his twin brother. In a traumatic past event, Zero tried to protect a Level E school nurse who turned in front of him, leading to Yagari losing his eye while saving Zero. Aware of the sacrifices Yagari made, Zero accepts Yagari’s judgment. Yuki, however, urges him not to give up and offers her blood to keep him from succumbing to his instincts.

Later, as Kaname meets Yuki outside, he notices her wet hair and almost removes the bandage on her neck. Though he refrains from confronting her, he questions her secrecy and expresses concern that her actions may bring her harm. Passing Yagari, Kaname exchanges a tense moment with him. Yagari directly questions Kaname’s motives, asking why he remains calm and does not kill Zero despite knowing what transpired. In response, Kaname extinguishes Yagari’s cigarette with his abilities and answers that it is so that he does not lose Yuki.

The next day, Yagari confronts Zero in his room, aiming a gun at him and accusing him of appearing defeated. Yuki, realizing Zero’s danger, rushes to intervene just as Zero deflects the gun. Yagari admonishes Zero to keep struggling and reminds him of the oath he made not to let Yagari regret his sacrifice. Before leaving, Yagari cryptically mentions that "that woman" is still alive, shocking Zero. Zero reassures Yuki he won’t run away and tells her to stop crying.