On that day, Mary Tachibana, a talented and intelligent manager who manages many male subordinates, takes Tsukamoto, a young employee in her second year at the company as a new graduate, to the northern Kanto branch for a one-night, two-day trip to the countryside. I was on a business trip. When she finished her minute-by-minute schedule and checked into the city hotel in front of the station where she was staying, she was wondering if it was just a mistake or if the company had something to do with it.