Mia Dawson is forced by her family to marry the mysterious Sterling heir in place of her younger sister, Chloe. On the wedding day, she breaks free and runs away, accidentally stumbling into the car of the real groom, Adrian Hayes, and kissing him on the spot to evade her pursuers. What Mia doesn’t know is that the man before her, whom she takes for an ordinary poor guy, is actually the CEO of the Sterling Group—the very man she is desperately running away from. Through a series of mishaps, the two end up married, and Mia begins a contract marriage with her “driver husband.” Facing humiliation and internship sabotage from her stepmother Vanessa, her sister Chloe, and her ex-boyfriend Ethan, Mia keeps fighting back, and gradually finds the warmth she has long missed in the Sterling family. Adrian protects her in secret while hiding his identity out of fear of losing her. As Mia enters the Sterling Group, their feelings become harder and harder to conceal, and Adrian’s true identity edges closer and closer to being exposed.