One day, Reiko Sawamura, an intelligent and talented boss who works hard every day, putting any man to shame, takes a young male subordinate who is a new recruit in her department on a two-day, one-night business trip to the North Kanto branch office. As usual, after finishing her work efficiently, she heads to the city hotel in front of the station where she is staying, but as part of the company's cost-cutting measures, she finds that instead of two single rooms, the room is reserved for a single twin room shared by men and women...!