Mikan had her nephew Jun, a ronin student, living in the house she lived with her husband, but he did not study and was absorbed in AV every day. - Due to Jun's presence, their marital life has drastically decreased and their frustration continues to accumulate. - On top of that, from Jun's room there is the typical smell of a young man and the moaning voice of an AV actress. - Mikan finally tries to destroy Jun's AV collection. - Jun, who wants to protect AV at all costs, proposes to Mikan that she watch AV for once, but... - This AV viewing party will lead to an unexpected situation.