To save her mother, Ophelia signs a one-year contract marriage with a complete stranger—Callum, a powerful CEO—yet, with her face hidden behind a veil, the two never recognize each other. A year later, she joins his company, and amid their fierce clashes in the workplace, feelings quietly blossom between them, though each painfully suppresses them behind their "married" status. When family conspiracies and workplace schemes strike one after another, she helps him defuse each crisis, and he, before a crowd, produces their marriage certificate to confess his love. As the contract draws to its end, they renew it with tenderness—this time, forever.