Mugen High School is a private school where some of the nation's most delinquent students gather. Honor student Daijirou Dounen and his childhood friend Sena Tsutsumi decide to enroll in Mugen High School, a den of evil, for their own purposes. However, it turned out to be a hell far beyond their imaginations!? No money! No connections! No power! All they have is brains and action! A duo of ordinary people aim to be at the top of their delinquent high school!! Reiwa's neo-delinquent manga begins!!