Yu and Kenichi, working at the same place, developed secret feelings and secretly sought sex. They have the same dream because they have a family and cannot meet each other comfortably. I want to spend all my time on SEX from morning to night, from good to right away. An extramarital affair, also known as a business trip, that I planned a few months ago to fulfill that desire. Then on the day of their meeting, the two met at the station, changed from suits to casual clothes, triumphantly boarded the Shinkansen train, went to the motel, and fiercely fought over their dark lips.