Mairina lives with her husband, who is much older than she is, and their college student son. She had been spending peaceful days in a blessed household, but this was taking away the joys of being a woman. It was then that she met her son's best friend, Daisuke. He often came to play at their house, but it wasn't long before Mairina noticed his sharp gaze during puberty. One day, Mairina accepted his intense desire. Five years have passed since then... Their relationship continues to this day. Daisuke also has a girlfriend. Yet the two of them keep repeating deeper intercourse with ejaculation inside…
