The comedy doesn't apologize for what it is, it commits completely, five distinct flavors of perverted male stupidity colliding with an all-girls' school, and the show finds fresh angles on that premise for twelve episodes straight. The animation quality is absurd for an ecchi comedy; J.C.Staff treats every absurd moment and fanservice frame with the craft of something twice its budget. It's funny first, horny second, and smart enough to know the difference.
Five boys enter an all-girls academy for the first time in its hundred-year history, and Kiyoshi Fujino quickly realizes that being vastly outnumbered isn't the fantasy he imagined. Within hours of arrival, he and his four classmates are caught breaking school rules and sentenced to time in the prison block, a underground detention facility run by the Student Council with iron-fisted authority. Their punishment is brutal and humiliating, designed to break their spirits entirely. Trapped between the threat of expulsion and the sadistic whims of their jailers, the boys must navigate a bizarre underworld of absurd rules, theatrical interrogations, and increasingly unhinged challenges. They scheme, they suffer, and they somehow find camaraderie in their shared misery. Every attempt at escape or redemption spirals into comedic catastrophe, thanks partly to their own incompetence and partly to the Student Council's creative torment. What unfolds is a delirious blend of slapstick punishment, ridiculous power dynamics, and the strange bonds that form when desperation meets determination. This isn't a typical school experience, and survival requires equal parts cunning and luck.