Jihoon, CEO of Kangwoo Group, and Chaewon, the only daughter of Li-An Group, both show up to a matchmaking meeting while hiding their true identities. Unaware that they were originally set up for a political marriage, they sign a contract marriage in pursuit of freedom. But Chaewon is kicked out of her home and begins living with Jihoon with no money. To prove herself, she joins Kangwoo Group as a designer—only to find Heejin, a past enemy, working there as her manager, who immediately starts tormenting her. Jihoon disguises himself as a janitor to hide his identity and secretly helps Chaewon. As real feelings start to bloom between them, everything begins to shake when Heejin discovers Jihoon’s true identity.