Rainbow - S01

Japan, 1955: Mario Minakami arrives at Shounan Special Reform School alongside five other teens, all convicted of serious crimes. Placed in the same cell, they form a bond with Rokurouta Sakuragi, an older inmate and former boxer. Inspired by his guidance and his promise to reunite after their release, the boys begin to see hope in their bleak situation. The seven endure relentless abuse from Ishihara, a cruel guard with a vendetta against Rokurouta, and Gisuke Sasaki, a doctor who exploits the boys for his own pleasure. Together, they fight to survive the brutal conditions until their sentences end-but even if they make it out, what kind of future awaits them beyond the prison walls?