Murong Shunshun, the orphaned survivor of the Marquis's estate, adopts the alias Jiang Guor'er and enters the poisoned mansion of the powerful minister Pei Yan. She makes a sympathetic puppet that allows her and Pei Yan to share pain and sensory perception, intending to use his power to avenge her exterminated family. Amid inner courtyard struggles and imperial court storms, Pei Yan suspects her while frequently protecting her under the influence of the shared senses. She and her close friend Xue Lingyi form an alliance, with Xue Lingyi serving as the nominal mistress to cover for her. The two gradually develop romantic feelings for each other, and Pei Yan has long been investigating the old case of the Marquis's estate. They join forces to bring down the mastermind, Empress Xiao. Jiang Guor'er confesses her true identity, and finally wears mourning plain clothes to ascend the golden throne hall to clear her family's grievance. Pei Yan proposes to her in the snow, and the two finally become a happily married couple.