Shen Zhuxin transmigrates into the body of the true daughter of the Marquis of Dongchang's household. She gains a special ability that allows her to alter the inner thoughts of the fake heiress, Shen Lingyue, thwarting Shen Lingyue's repeated schemes against her. She meets Duan Yanxing, and the two gradually fall in love. Together, they uncover the conspiracies of the Fifth Prince and others. After winning a challenge from a princess of the Eastern Kingdom, Shen Zhuxin receives the Emperor's decree of marriage and weds Duan Yanxing. Shen Lingyue is punished, while the couple live happily together.