In this household, there are three people living together - a husband, his wife Nono, and her stepfather. The relationship between the husband and stepfather is strained, leaving all responsibilities for the stepfather to be taken care of by their maid. Meanwhile, Nono isn't satisfied with her husband's lackluster sexual encounters and secretly masturbates when she feels the need. Unfortunately, one day her actions are discovered by her stepfather...

夫と義理の父親、妻・ののかの3人暮らし。夫と義理の父親の仲は悪く、義父の世話はお手伝いさんまかせ。そして妻・ののかは夫の淡白なセックスでは満足できずに隠れて自分で慰めていた。そんなとき義父にその行為がバレてしまう。そして…。