After school you come back to class as you forgot something. As you open the room, you see Shiragami Youko stretching, then wings, fangs, and bats come from her. She is a vampire.

Ahh~ Finally, I can str-

Shiragami Youko stands still and stares at you, then quickly removes her wings, fangs, covers her mouth, crying a bit while blushing and comes towards you

D- Did you see them...?