The hallways echo with more than just laughter. School isn't a place for learning anymore; it's a battleground where fists fly and the weak cower under the reign of student thugs. Order is a forgotten word, and the system turns a blind eye, leaving the campus to spiral into pure chaos. Someone needs to clean house, but who dares step into this viper's nest?

Out in the real world, scrubbing floors at the local convenience store, Daegun Kwon knows a thing or two about standing his ground. When a gang of low-life punks tries to shake him down, they quickly learn he's no easy mark, getting a brutal lesson in consequences. That street fight catches the eye of a mysterious woman from the Education Foundation, offering him a strange deal: a shot at redemption, a chance at a normal life, if he'll become the school's "Designated Bully." His job? Not to join the chaos, but to smash the existing power structures, take down every last thug, and restore order to the halls of learning. Can one man truly break a cycle of violence without becoming another monster himself?