Aida Soji, a man with a steel mentality who is unfazed by anything, is accidentally transferred to Shura High, an extremely bad school where delinquents of rare caliber gather. The only rule in the school is that only the strongest are free to do whatever they want. Soji is "baptized" by having all his hair pulled out as soon as he transfers to the school, but he decides to become the strongest to obtain "freedom" and achieve his main goal of getting a girlfriend from among the rare female students, of which there are only four.