The third installment of the full-scale adultery drama series! Starring Hibiki Otsuki. Her partner is Suzuki Ittetsu. Hibiki moved from the countryside to Tokyo to get married. She lived a modest but happy married life with her husband, who is a salaryman. One day, she meets her high school friends, Kazumi and Yuichi, who are now married. Hibiki and Yuichi are attracted to each other but have never confessed their feelings to each other. They continue to meet, even though they know it is wrong...