After Shizuka Hio’s death, peace is restored at the academy. But when Zero returns, the vampires of the Senate accuse him of murder.

The Night Class goes to the Aido family’s vacation home during the long break, but Hanabusa decides to stay at the academy to investigate Kaname.

While the Night Class is at the Aido family’s vacation home, Yuki, driven by her desire to stop hurting Zero, tries to regain her memory of the past.

Yuki is continually haunted by visions of blood. Nevertheless, she is determined to find out about her past from Kaname.

Kaname asks Yuki to be his lover. The Night Class guards begin accompanying her everywhere, and Yuki cannot hide her embarrassment.

Senri returns to the Academy, but upon having a confidential talk with Ichiru, he becomes noticeably different from before.

Yuki wakes up a vampire, and her memory of her childhood returns. She now remembers her father, her mother and her brother.

Yuki now understands who she really is. Worried about Zero, she sneaks out of her room to find him -- but he simply can't accept what she has become.

The Headmaster calls for an emergency evacuation of the Day Class students, as Rido’s servant vampires begin attacking the students.

In order to protect the academy, the Headmaster confronts the head of the Hunter Society while Rido is still on the rampage.

Yuki decides that as Guardian, she must protect all the students at the academy and fight Rido.

All of Zero’s strength is not enough to kill Rido -- he will need Kaname's help. But the fight will leave Cross Academy devastated.