Shen Mingwei, the legitimate daughter of the Marquis's estate who was displaced for sixteen years, returns to the estate after being reborn. Having suffered a tragic death by poisoned wine in her past life, she is determined not to be a chess piece again. She defeats the schemes of her stepmother and the fake daughter, uncovers the truth of the switch, reclaims the authority over household management, and joins hands with her brother to clear the Marquis's estate. Once the turmoil in the estate settles, the empress summons her into the palace, where the murderers of her past life and the mastermind behind the scenes await her to uncover them, as she takes up the chess board to exact payment for old debts.