The third installment of the full-scale adultery drama series! The lead role is starring Otsuki Hibiki. His partner is Suzuki Kazutoru. Hibiki came out of the countryside to Tokyo as she married. She lived a humble but happy married life with her office worker husband. One day, they met Kazumi and Yuichi, a friend from high school who are now married and become a married couple, for the first time in a while. Hibiki and Yuichi, who were attracted to each other but were unable to express their feelings, knowing that this is a problem, they end up meeting one another...