Cheating on her husband while he's on a business trip with a younger man.

Yu and Kenichi, who work in the same workplace, have had an affair with each other, they are always looking for opportunities to be physically satisfied with each other. They have the same desire and the same dream but since they both have families, they are not free to meet each other. They want to forget everything to be satisfied together. To fulfill that desire, an affair trip called a business trip that they had planned a few months ago. And on the same day, the two met at the station, changed from suits to civilian clothes and happily walked on the Shinkansen to the inn and fucked each other fiercely.