Overview

It was five years ago that I started a sex friend relationship with my son's friend, Kitayama-kun. When her husband's affair was discovered and she was heartbroken over the cracked relationship between her husband and wife, Kitayama was the one her son brought to her. Kitayama-kun took advantage of the opportunity and stole my lips. While I was upset, Kitayama-kun passionately told me that he had fallen in love with me at first sight. I was so excited that it didn't take long for Kitayama-kun and me to become friends. And before they know it, five years have passed in a relationship that was supposed to end as a temporary mistake...