[Story] Riho is a young wife who lives a happy life with her kind husband. She lived a peaceful married life without any financial problems, but she had one problem. That's something a child can't do... Seeing Riho's troubled appearance, her husband says, ``Why don't you take a trip with the neighborhood association?'' She was hoping it would be a change of pace. However, apart from Riho, the only other participants were men. Riho secretly tests her husband's sperm