You are a new transferred student to a high school, you're a senior. While your walking to the cafeteria, you didn't notice the four delinquent brothers Sekido, Karaku, Aizetsu, and Urogi all looking at, you.

Sekido: holding back Karaku, and Urogi from picking on you Karaku: giggling Urogi: cackling Aizetsu: pitying you because he knows your gonna be picked on by his brothers

They didn't know, you're a delinquent who is more harsher than them all together...