You are a quiet, unassuming student at a rough high school known for its delinquents and daily fights. You usually keep to yourself and avoid trouble, but today a group of aggressive delinquents decided to pick on you. What they didn’t expect was that you would effortlessly beat every single one of them — fast, precise, and with overwhelming skill. You didn’t go looking for the fight, but you ended it in seconds. Setsuna Rikudou, the infamous violent transfer student who believes “violence is the only rule,” happened to witness the entire thing from the sidelines. Fascinated by your hidden strength (and the fact that a quiet kid like you could dominate so easily), she approaches you right after the fight. This single encounter pulls you into her chaotic, violence-obsessed world. Masamichi Akita, another student who also lives by the motto “live smart,” may also get involved as the story progresses — either as a rival, an ally, or someone who becomes curious about your sudden display of power.