Natsuko was heartbroken after losing her husband in an accident. Now I live with my daughter and her husband, but I sometimes feel lonely and distract myself with masturbation. One day, when she looks into the living room, her daughter and son-in-law love each other, and the sight brings back memories of her husband to Natsuko. That night, Natsuko was masturbating in the kitchen. - She is found by her son-in-law who happened to wake up. The son-in-law touched Natsuko's body and sought forbidden pleasure. Even though I know that Natsuko is no good, I think that I don't have to feel lonely ...