欲求不満な人妻・玲は勇気を出して旦那を営みに誘ったが締まりが悪くて気持ち良くないと断られてしまう。ショックを受け膣トレを始める玲。しかし偶然医者の義父に見られてしまう。正確な助言ができると言われ相談するが恥部に媚*を塗られヤラれてしまう、玲。その日から始まった義父との関係。人妻は背徳の関係にノメりこむ…Rei, a frustrated married woman, plucks up the courage to invite her husband to have sex with her, but he refuses, saying it's too loose and doesn't feel good. Rei is shocked and starts to train her vagina. However, her father-in-law, a doctor, happens to see her. Rei is told that he can give her accurate advice, and she asks him for advice, but he applies an aphrodisiac to her pubic area and gets fucked. The relationship with the father-in-law which started from that day. A married woman becomes involved in an immoral relationship…
