Ha-ri agrees to go on a blind date in place of her best friend, intending to pose as a promiscuous woman to deter her friend's unwanted marriage arrangements. However, things take an unexpected turn when she discovers her date is Taemu, the charming new CEO of her company. Taemu has his own reasons for wanting to get married, specifically to convince his family to back off, and he proposes that Ha-ri continue the charade, pretending to be his girlfriend. Despite the risks of maintaining a false identity while dating her superior, Ha-ri must decide whether to accept his offer and navigate the complexities of their fabricated relationship.