A blood oath was taken on a cold night, and the medical girl Shen Qingdai stepped into the palace with the hatred of destroying her family. She used her treacherous poison-curing skills as a blade, dealing with the open spears of the noble concubine Murong Huayue and the hidden arrows of the virtuous concubine Su Jingwan, and climbed step by step from a humble palace maid to the top of power.
On the Dragon Throne, the emperor Xiao Xuanlin is deep and unpredictable. His obsession with his late wife Yuan Hou is intertwined with his increasingly complex feelings for Shen Qingdai. When the ravings of the mad woman in the cold palace and the marks of the former cult emerged one after another, her hidden life experience - her inextricable connection with the deposed emperor of the former dynasty and the bright empress became the thunder that detonated all the conspiracies.
The jade seal was stolen mysteriously, Xiao Xuanlin seriously injured his Zen throne, and left the young emperor and the broken country to her hands. The phoenix seal is heavy, and the Queen Mother's crown is both glory and shackles. Under the triple stranglehold of doubts from the government and the opposition, the war at the border and strange poisons in her body, she must uncover the truth behind the death of Empress Yuan and uncover the mastermind behind the scenes.
When love has become a tragedy and blood feud has been avenged, is the foggy road leading to the Medicine Valley in southern Xinjiang her final destination, or is it another carefully arranged killing? The ninth level of the deep palace has ruined her youth and true love. How will she find her "home" in this purgatory of power?
