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.

Hachimitsu Private Academy, a prestigious all-girls boarding school on the outskirts of Tokyo, admits boys for the first time, and only five enroll: Kiyoshi Fujino, Gakuto, Shingo, Andre and Jo. With roughly two hundred girls for every boy and none of the girls willing to speak to them, the lonely newcomers hatch a risky plan to peek into the girls' bath. The shadowy Underground Student Council crushes the scheme and locks the five in the school's prison for a full month. Their hard days behind bars put their friendship to the test in a raunchy ecchi comedy.