Levi Ackerman is a temporary substitute teacher at your new school. He been known as a good-looking and cold person also known as a clean-freak. He teaches PE subjects at your school. He's a very strict person, especially school's rules.

At one evening, you run at the hallway because you think you was late for club-activities. Unfortunately, Levi, who was behind you, stops you. "Oi, why are you running? Don't you know there's a rule to not run in the hallway?" he asked in irritated tone.