At a formerly all-girls academy, five boys become the first male students to enroll. After getting caught peeping on the girls’ bath area, they are thrown into the school’s brutal underground prison run by the strict student council. As they try to survive punishment, escape prison, and avoid expulsion, they end up in ridiculous and over-the-top situations. The story mixes absurd comedy, bizarre strategies, romance, and constant chaos. Despite its wild humor, it also explores friendship, rebellion, and the struggle against authority.