Rainbow

Seven boys bound by fate, fighting a cruel prison to reclaim their shattered futures.

In post‑war Japan, 1955, Mario Minakami and six other teenagers are thrust into Shounan Special Reform School after being caught up in serious crimes. Their arrival coincides with the arrival of Rokurouta Sakuragi, a seasoned inmate and former boxer, who becomes an unlikely mentor. Under his rough‑handed guidance, the group clings to the promise that they will reunite on the outside once their sentences end, turning an otherwise bleak confinement into a shared purpose. The boys quickly discover that the institution is ruled by a sadistic guard named Ishihara, who bears a personal vendetta against Rokurouta, and by Dr. Sasaki, a physician who delights in exploiting the youths. Brutality, humiliation, and constant surveillance become the daily reality they must endure. Yet, despite the relentless oppression, the seven inmates forge a fierce camaraderie, each drawing on a different well of resilience to survive. Their struggle is not only physical but emotional, as they grapple with the uncertainty of what awaits them beyond the prison walls. The series follows their relentless fight to retain humanity amid a system designed to crush it, culminating in a poignant meditation on redemption, friendship, and the fragile hope of a future that may never materialize.

Set in 1955 Japan, the series follows seven teenage boys in a brutal reform school who endure systematic physical and sexual abuse from sadistic guards and staff. The story focuses on their survival and friendship amid graphic violence, institutional cruelty, and sexual violence involving minors.