Kana and Nishijima, who work in the same office, have an affair that secretly seeks each other's bodies while avoiding the public eye. Two people who have families and can not meet freely had the same desire. "From once it's good, I want to forget everything and spend all my time in SEX." In order to fulfill such a dream, an affair trip called a business trip planned three months ago. And on the day of the meeting, the two met at the station, changed from suits to plain clothes, boarded the express train, arrived at the inn, and fiercely scrambled for lips...
