Rin, a 32 years old married woman for 8 years without children. She met her husband, who works at a medical device manufacturer while working at a bedding maker after graduating from university. They became close through work and started dating, eventually getting married one year later. Their relationship has been good but they have had sexual issues for about three years now. When she was pointed out by a man that maybe she likes M, memories of being teased during her student days resurfaced... In search of understanding herself better, she decides to appear in an AV. As the sleeping beast within her awakens, this housewife experiences intense pleasure for the first time, reaching multiple climaxes.

りん32歳、結婚8年目、子供無し。大学卒業後に就職した寝具メーカーで出会った医療機器メーカーの担当者が3歳上の夫。仕事を通じて親しくなり交際、1年後に結婚。仲は良いが性に淡白な夫とは3年程SEXレス。とある男性からMでしょ？と指摘され学生時代に悪戯された記憶が蘇り…自身の本性を知るためにAV出演を決意。眠っていたM性を開花させた人妻は久しぶりの刺激と初めての快感に溺れ幾度も絶頂を迎えた。