To pay off her debts, the female protagonist signs a contract with the cold-hearted lawyer, becoming his nominal substitute. The male protagonist appears aloof and ruthless, but secretly harbors feelings for her and silently protects her. Beneath the contract lies genuine affection, and the two cross boundaries in their tumultuous relationship. Ex-partners, family conflicts, and conspiracies follow one after another, but the male protagonist fiercely protects his wife, tearing away all pretenses. Ultimately, the contract is voided, and the two emerge from their substitute role game into true love, living happily ever after.
