Married for 20 years and a mother of two, Eriko works as a supermarket cashier. The reason she started working there was that one day, when she was making a large purchase, a young male store clerk came to help her. She was impressed by this young, strong man, the complete opposite of her husband. Although she has not had sex with her husband for a long time, her body has become more sensitive. She is captivated by the craftsmen in the fresh food section, the delivery man, and the store manager with his mature sex appeal every day, and she applied for the job, hoping to somehow fulfill her desires, which may not be possible in reality.