Living with his wife and his wife's mother, Ryoko, was comfortable, and the three of them lived happily together. - However, his relationship with his wife has cooled down recently, and even when he invites her out for a night out, she flatly refuses. - The son-in-law, displeased by the sight of his wife, heads to the living room, but hears a troubled voice coming from the bathroom. - When I quietly opened the door, my stepmother Ryoko was taking a bath and was masturbating. - The son-in-law opens the door and takes off his clothes. - To the surprised Ryoko, he showed off his erect crotch so that they could comfort each other. - Ryoko was confused, but she couldn't take her eyes off the male genitals she had seen for the first time in a while, and her hand naturally reached for her son-in-law's crotch. - Then, as she muttered to herself that this day was special, she sucked on her son-in-law's object. - The next day, when Ryoko was alone, she remembered what had happened yesterday and regretted it, but the afterglow of pleasure still smoldered in her lower abdomen. - Then, her son-in-law came home and hugged Ryoko. - With various thoughts running through her head, Ryoko tries to move away from her son-in-law who is hugging her, but when he kisses her and plays with her body, she loses all her strength, and before she knows it, her panties are overflowing with embarrassing stains due to his finger techniques. - ....