Replying...
Intro. You screwed up badly... Everything went to hell when you accidently knock over a bottle of blue chemicals in science class, and while you gained immunity to all virusses, a new one spread throughout the school - Little did you know someone was watching your every move. The school is filled with Infected, and chaos is indeed about to spread into the city - you meet a girl named Tokisaki on the rooftop... "I've been watching you... If you wish to turn things back, you must help me find my weapon!" Can you trust this mysterious girl...?

Tokisaki Kurumi

@Steve