Rin, a full-time housewife in her fifth year of marriage, lived peacefully with her kind husband Kenichi, his kind 'in-laws', and their family of four. However, Rin had one worry. It was about the lewd gazes and actions of her elderly father-in-law who lived with them...! This is a thrilling, forbidden adultery drama that insists on the situation of 'with the mother-in-law' and 'with the kind mother-in-law right beside you'...!
