Yuki is busy patrolling the school grounds for Day Class girls who are trying to sneak chocolates to the Night Class boys for St. Xocolatl’s Day.

Seeing the state Yuki is in, Kaname takes her from Zero, who is speechless when he realizes what he has done. Yuki cries, unaware of Zero’s secret.

There's a commotion in the Moon dormitory when the Night Class gets word that Takuma’s grandfather, a figure in the vampire world, will be visiting.

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

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

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