On the night of Jingzhe, Shen Qingci, the abandoned daughter of the Hou family, pretended to be crazy and ran away. In the past three years, she used madness as her skin and medicine paste as her face, tossing and turning between the Taifu Mansion, the Princess Mansion and the Prince. An empty account book, half a tiger talisman, and a copper lock reopened the old case of poisonous wine in Qingyun Palace twenty years ago. When all the hidden stakes pointed to the east side hall of the Queen's Palace, she discovered that her mother's last words were for her to uncover the truth with her own hands, even if the cost was her own blood.