結婚5年目の人妻「松咲那奈」34歳。専業主婦の彼女は普段は眼鏡をかけて地味な格好を心がけているという。「実は、一人で外出したのは結婚してから初めてなんです…。」束縛が激し過ぎる夫は、美容室でさえ一人で行かせてくれない。不自由ない生活だが、まるで籠の中に閉じこめられているようだと語る。更には夫とセックスレス。限界まで欲望を募らせた彼女は実家に戻ると？をついてこの日スタジオにやって来た。そして、隠された美貌とIカップをさらけ出し、不貞心を目覚めさせた人妻に現場スタッフたちはぐっと心を掴まれた…。

Nana Matsusaki, 34, is a married woman of five years. A full-time housewife, she usually wears glasses and dresses modestly. "Actually, this is the first time I've gone out alone since getting married…" Her overly controlling husband won't even let her go to the hair salon alone. While she lives a comfortable life, she says she feels trapped in a cage. Furthermore, she and her husband are sexless. With her desires pushed to the limit, she returns to her parents' home? She arrived at the studio that day, revealing her hidden beauty and I-cup breasts, and the staff were captivated by this married woman who awakened their desires for infidelity…