Evelyn gives up her career for her marriage, only to be betrayed and abandoned by her husband, Grant. Penniless on a rainy night, she saves Ivy, a traumatized girl under Roman DeLuca's guardianship, and is unexpectedly brought into the DeLuca Estate. To help Roman secure Ivy's custody, Evelyn signs a marriage agreement with him. As she faces her ex-husband's harassment, a socialite's schemes, and a family crisis, Evelyn returns to the business world and founds Hart Advisory, while gradually building real trust and love with Roman. In the end, she not only regains her career, but also becomes the true lady of the DeLuca family.
