Mao, who should have been a good wife, had a serious secret to her husband. He had a physical relationship with his son Satoshi. One day when I was dissatisfied with my husband who was a work person, my husband was alone with Satoshi on a business trip. Mao is lustful for Satoshi who has grown steadily. After that, Satoshi in adolescence couldn't put up with the sex she had just learned, and soon began to seek Mao ... The moment my father goes out today, the mother and child mix.