While his wife is hospitalized, the mother-in-law comes from Tochigi to Tokyo to help with household chores. The life of a forty-something mother-in-law and her son-in-law begins! The son-in-law can't suppress his lecherous feelings towards his kind mother-in-law's large breasts. One day, after finding her son-in-law's erotic magazine, the mother-in-law becomes engrossed in self-pleasure. Their mutual desires escalate, binding them together with a secret bond of lust
