Mikaela, who was thought to be dead, was actually turned into a vampire by Krul and is working with them. Meanwhile, Yuichiro starts his first day at the Extermination Unit's training school, and already he gets into a fight with one of his classmates...

Kimizuki, Yuichiro, and Yoichi fight against the hallucinations caused by the Black Demons they chose in order to attain their power. They face their tragic memories and fight for control.