After her husband passed away, Maiko has been struggling to survive on insurance money and part-time jobs. On top of that, her son Sho has become depressed and withdrawn while searching for work, making the situation even harder. Determined to support her family, Maiko applies to a sex shop that specializes in mature women. Her sincere attitude impresses the shop, and they hire her. Three months later, her work is going well and she has gained some regular customers. One day, a customer named Saeki requests a private session at his home...