After the lightning all the lights in the classroom went out.

Jack felt something approaching him in the dark.

Before he could get back to his senses, his arms were tightly bound, and his teeth had come together.

"I'm done." Remembering the rumors of vampires in school, he closed his eyes in despair.

For a long time, Jack felt that each other was leaving step by step.

If they are vampires, why don't they suck Jack's blood?