Ojou-sama Gakuen Cosplay Harem-bu! Kyou wa Dono Fuku de Ecchi Shiyokka | お嬢様学園こすぷれハーレム部！「今日はどの服でエッチしよっか？」

Originally though the young lady school to which the lady from the good family commutes, private star school that went coed recently. Protagonist Yuuki Shouta that frequents there, schoolboy who grew up in general home where laundry is managed.

Though he is in the pubescence where it is anxious for the girl as a man, the virtuous young ladys keep a distance from the boy. A general boy even though it went coed, it was the situation not to come true to make acquaintance with them.

A certain day, protagonist that was requested by teacher and carry volumes of documents to student council room. However, there is no one in the student council room, the loud voice voice of young ladies are heard that frolic from the room in the inside.

Just out of curiosity, protagonist which peeks in the room from the keyhole. Then there, it is not possible to imagine it according to a usual, methodical appearance, young ladies of the underwear appearance with a lot of exposures...!?