Four years ago, Qiao Xu was forced to break up with her wealthy boyfriend Xu Si'an through a fabricated misunderstanding. Now, as a secretary at a major corporation, she discovers the new CEO is none other than Xu Si'an himself. Returning with resentment, he torments her with his authority—even accusing her of stealing his dog. But as their battle of wills reignites old sparks, they must unite against scheming rivals and family opposition, turning a story of revenge into one of second-chance romance.