Sumin has been betrothed to her fiancé since her childhood. The marriage isn't too far away, and while the fiancé is of the same age and is someone she knows very well, Sumin isn't happy about it. That's because the target of such a strategic marriage is rumored to be a douchebag. Sumin, humiliated at the thought of having to give her chastity to such a jerk, vents her frustrations out to her secretary, Lee Ho, over a few drinks. But... What happens when she ends up making the proposition for a one-night stand to Lee Ho?