The main character “Yasu Sashihara” and the heroine “Mariko Sashihara” are a married couple in their fifth year of marriage.
When he was newly married, his wife’s affair was discovered only once, but it didn’t matter and he lived a peaceful couple life.
However, recently, the two have been worried that the couple’s activities have become light nights.
One day, Yasu receives a post-event report of cheating sex from his wife Mariko.
・ The partner is a new employee 8 years younger and a virgin boy.
・ Being a sportsman who was a long-distance runner when he was a student.
・ Being confessed after having sex at a love hotel.
Mariko said she wanted to be her husband’s official lover.
It was a messy request, but it was different for Yasushi who had a desire to be cuckold.
Intense excitement that I haven’t felt for a long time.
Yasu accepts Mariko’s wishes and her husband’s official affair dating starts …