Yuna married a novelist who is much older than her. She was happy living with her husband's son, Takashi, in their splendid mansion. However, due to age and the stress of work, their nighttime activities with her husband were lackluster. One day, Yuna accidentally touches Takashi's robust, well-developed body, and feeling his manliness, she feels something hot in her own body and indulges in masturbation. Takashi sees her doing so... A monologue by a married woman who wants to remain a woman forever... a drama of immoral incest!