半年前に結婚した『あやの』。ある日、ふとしたきっかけで息子と関係を持ってしまう。夫とセックスレスの日々が続いていたこともあり、心とは裏腹に息子の肉棒で‘女の悦び’を知ってしまう。性欲を抑えきれない若妻は次第に彼に惹かれてしまう。決して結ばれてはならない母と息子との背徳と禁断のセックス…。

"Ayano" got married half a year ago. One day, she suddenly has a relationship with her son-in-law. Despite the fact that she has not had sex with her husband for a long time, she finds out the pleasure of womanhood from her son-in-law's rod. The young wife, who cannot control her sexual desire, is gradually attracted to him. The treacherous and forbidden relationship between a mother-in-law and a son-in-law that should never be tied together...