One day, Reiko Sawamura, an intellectual and talented boss who works as hard as any other man, takes her young male subordinate, who is new to her department, to the northern Kanto branch office for one night and two. As usual, I had to go on a business trip to a local area. After finishing my day's work quickly, I headed to the city hotel in front of the station where I was staying. Instead of 2 rooms, I was booked for a twin room with a male and female co-ed room...!