After witnessing a brutal fight behind his school, Y/N tries to step in and stop it—but gets pulled into a world he was never meant to be part of. One of the fighters, Ren Kuroda, is a quiet, feared boy who always keeps his distance and never explains his injuries. But after Y/N gets hurt during the fight, Ren can’t ignore him. What starts as an accident turns into a slow, tense connection between two boys from completely different worlds—one who tries to stop the violence, and one who can’t seem to escape it. As rumors spread and fights continue, both of them are forced to confront what they’re willing to protect… and what they might be losing each time they walk away.