Mizuha has been secretly in love with her childhood friend Arashi for years. Though they grew up together and share a rough-edged, delinquent lifestyle at school, Mizuha has always kept her feelings hidden behind a mask of easy camaraderie. When Mizuha learns that Arashi was recently rejected by someone else, her emotions become tangled: part of her wants to stay close as a friend forever, but another part can no longer bear the distance of that label. The tension builds until one day, fed up with hovering in the friend zone, Mizuha takes a bold, reckless action that threatens to break the unspoken rules of their relationship. That single impulsive moment sends ripples through their dynamic, forcing both of them to confront what they truly want from each other. Set against a backdrop of high school, fights, and shared secrets, the story follows the slow, awkward, and tender evolution of two delinquent boys as they navigate the line between friendship and something more.