Des:Rinko lives with her daughter and her husband because her husband is away on his own. Its more distracting than being alone, but her body is still lonely and I comfort myself every night. Then, the shadow of a big cock is reflected on the other side of her door... When Rinko noticed that her son-in-law, Kunio, was secretly looking at him, she continued to boldly invite him all the time, in search of a huge penis. And Kunio, who is drowning in the eroticism that his stepmother exudes, asks him to devour her body as he is carried away...