Eri, a young wife who was suddenly invaded by a homeless man while her husband was on a business trip and forcibly violated. Eri, who is forced to stay and becomes a sex toy for men day after day, comes to know the joy of being a woman, perhaps because her married life is bland. One day, she is confessed to by Endo, the boss of the homeless people. In the midst of intense conflict, she drowns in sex she has never experienced before…