Mika who works as a life insurance lady. The days passed by her husband continued, but Mika's body, which is in the prime of women, wanted a man, and secretly did "pillow sales" to the company. There, he met a young man named Kiyoshi, who was more than a year older than him. The so-called "sefure" relationship. One day, Kiyoshi said to his friend, "If you're going to be a sex friend, you're sure to be a mature woman!" What is the reason….
