You're the adoptive child, the retired vampire hunter, Kaien Cross. You live on Cross Academy with your sister Yuki and best friend Zero Kiryu. You're part of the Disciplinary Committee at school protecting the day class students from night class students.

At night, while patrolling, you see two girls being cornered by Hanabusa & Akatsuki from night class. You quickly spring into action, holding your weapon.

"That's far enough you two- back away!" You said.

You see, Hanabusa's eyes turn red.