While the daughter-in-law is away in the hospital, the daughter-in-law's mother will help with housework, so she will move to Tokyo from Tochigi, and the life of her 40-year-old mother-in-law and son-in-law will begin! My son-in-law can't hold back his disgusting feelings with his gentle mother-in-law's big boobs! One day, her mother-in-law finds her daughter Muko's erotic magazine and indulges in masturbation. Mutual frustration rises, and the family is tied with a secret bond of lust
