A salaryman husband, working hard for an upcoming promotion, one day brings his boss, Section Chief Nakata, home. It turns out that starting next week, he will be going on a business trip to a branch office outside the prefecture. For some reason, Nakata also asks that his subordinate's wife, Miho, accompany him. Although confused, Miho reluctantly agrees when her husband asks her to do so for his promotion evaluation. The following week, at a hot spring inn nestled in the mountains, Miho is asked by her boss to provide lewd entertainment…
