Ann Hale once thought Luke Miller was her savior. Trapped in a controlling relationship with Luke for four years, all she got was misplaced devotion: Luke is going to marry his ideal first love, and forces Ann to be his mistress. Heartbroken, Ann decides to enter a contract marriage with Tristan Lee. She thought her marriage with Tristan was only a transaction, but never expected that this marriage was Tristan's long-planned pursuit of her.