Kaho was living a happy life surrounded by her kind husband and son. "A wife whose happiness everyone envies"… that was her public face. However, she also had a secret face that she couldn't tell anyone about. It was an excessive溺愛of her son that led to a physical relationship. Even though she knew it was wrong, her body inevitably sought her son. But the son, receiving such excessive love from his mother, gradually began to lose his sanity, and eventually, he started to seek Kaho's voluptuous body even when his father was nearby...