Yuri, who works in the sales department, suffers in her marriage to her jealous husband. On this day, due to a sudden appointment during a regional business trip, she ends up staying overnight at a nearby ryokan with her boss, Sawaki... Her jealous husband reacts violently to this. Yuri clutches her incessantly ringing phone to her chest and lets out a deep sigh. Unable to stand seeing her like this, Sawaki approaches Yuri, claiming that he can make her happier, and forcefully pushes for a sexual relationship...