Kaho was surrounded by a kind husband and son, living a happy life. "A wife envied by all"... that was her public face. However, she actually had a hidden side that she couldn't tell anyone about. That was having a physical relationship with her son due to her excessive love for him. Even though she knew it was wrong, her body still yearned for her son. But the son who received such extreme love from his mother gradually lost his sanity, and eventually began to seek Kaho's voluptuous body even when his father was by his side...
