A 38-year-old married woman named Ichikawa Asuna lives with her husband, who sells imported cars, and their two sons. She met her husband when he sold her a car, and they have been happily married ever since. Their bodies are well suited for each other, as she has an M type physique while her husband prefers S. Although they seem happy now, she wonders if things could stay the same forever... The investigative team delves deep into the intimate thoughts of this beautiful housewife!