Two years ago, Mu Wanwan, the legitimate daughter of the Marquis's household, jumped off a cliff to save the Crown Prince and disappeared without a trace. To protect the family's interests, the household adopted an orphan girl, Mu Qianqian, and gave her all of Wanwan's titles and status. Two years later, Mu Wanwan returned, only to discover that her family had long forgotten her. To conceal the truth about what happened years ago, everyone in the household treated her cruelly. Eventually, she was framed and forced to kneel by an icy lake, where she froze to death. Reborn into a new life, Mu Wanwan struck a deal with Crown Prince Chu Yuheng: he would grant her the authority to uncover the truth, and she would become his bargaining chip for eliminating the Second Prince's faction. In this life, she no longer yearns for family affection; she seeks only the justice she deserves.