``It's been five years since we started this relationship.'' Five years ago, I made a mistake with my son's friend Kitayama.When my husband's affair was discovered and I was feeling exhausted...Kitayama-kun kindly snuggled up to me and confessed to me.That night, I was touched by Kitayama-kun's kindness and feelings, and I took his first time away from him, crossing the line of infidelity.From that day onwards, I had many secret meetings with Kitayama-kun, hidden from my family's eyes, and it was a very happy time.However, after 5 years, the relationship has changed and the sex friend relationship has come to an end...
