Ryou, the mother-in-law living with her daughter and son-in-law. The loneliness of living alone due to her husband's business trip is now gone, but the physical craving is unbearable and her sexual desire only grows. At that time, she finds out that her son-in-law, Tarou, has a huge dick... Using the fact that her daughter and son-in-law are sexless, she pushes herself onto him saying, 'Instead of my daughter, let me...' and satisfies her lust. Ryou seduces him anytime, anywhere, fully enjoying his huge dick. Tarou, swept away by the pleasure, soon finds himself drowning in his mother-in-law's alluring body and starts to seek it out on his own...
