Misa Yuki has had some embarrassing affairs with her husband's younger brother in the past: "Taking her son to and from school with a vibrator inside her," "Having sex at the park where her son plays," "Squirting in front of her son," "Having sex while on the phone with her husband at a family gathering," and "Having creampie sex while holding hands with her son." Ma, Ma-kun, this is... play wrestling... The biggest taboo for a married woman is for her son to find out about her obscene acts!