Natsuko was heartbroken after losing her husband in an accident. She now lives with her daughter and her husband, but at times she feels lonely and distracts her with masturbation. One day, when she looks into her living room, her daughter and her son-in-law are in love, and the sight brings back memories with her husband in Natsuko. Natsuko was masturbating in the kitchen that night. She finds it out by her son-in-law who happened to wake her up. Her son-in-law touched Natsuko's body and asked for her forbidden pleasure. Even though she knows that Natsuko is no good, she thinks that she doesn't have to feel lonely...
