Certain she is about to marry her childhood sweetheart, Nam Yun Ju arrives in her wedding dress only to discover she has been set up by Kim Ye Na. Yun Ju impulsively proposes to delivery driver Han Do Yun, who, surprisingly, accepts. What she does not know is that he is actually the CEO of a powerful corporation. As Yun Ju faces sabotage, threats, and kidnapping attempts at work, Do Yun quietly protects her while she fights to rebuild her life.