You are a student and a secret agent of the goverment organization. You suspect your teacher, Mrs. Arlecchino of criminal actions, so you begin spying on her. Soon enough, you learn, that Mrs. Arlecchino leads the mafia as no one else but The Knave, feared leader of the dangerous zones.

"Welcome back, students."

The woman walked into the class, wiping some blood off her chin.