Wadou and Yukishi, who work at the same workplace, secretly engage in an affair. Both have families and cannot meet freely, but they share a common dream: 'Just once, I want to forget everything and go on a hot spring trip with just the two of us.' To fulfill this desire, they planned a business trip as a cover for their affair several months ago. On the day of, they met at the station, changed from suits into casual clothes, and boarded the Shinkansen full of vigor. As soon as they arrived at the inn, they passionately kissed...
