Qin Zhao, a modern female forensic doctor, accidentally traveled to Daqi while working on the autopsy table and became the deposed empress Ji Zhao who was thrown into the cold palace and charged with filthy harem. As soon as she opened her eyes, she received an imperial edict that she would die in three days. With her solid forensic knowledge, she discovered on the spot that the guard who framed her was already dead. She took out the hidden edict of the late emperor from the deceased's throat, and became involved in the shocking mystery of imperial power and "phoenix life swallowing".
She is bound to the Phoenix Life Devouring System and must complete the autopsy within the time limit, otherwise she will die suddenly. The general Zhao Wujiu died suddenly and mysteriously, and the commander of the Imperial Guard Jiang Xu was killed mysteriously, and one death after another happened one after another. She wanders between the ruthless fake empress Xiao Jue and the dormant and forbearing eunuch Xiao Che, using the silver hairpin as a knife and the bones as evidence to decipher the secrets hidden in the corpses.
As the autopsy progressed, the truth about Feng Ming's devouring surfaced. Qin Zhao discovered that he was actually the other half of Feng Ming's container and the original sacrifice in this power chess game. Unwilling to be manipulated by others, she possesses autopsy skills and joins forces with Xiao Che to clear away the layers of fog surrounding the death of the late emperor and the transfer of his identity, and fight against the fake Phoenix Empress who devoured her bloodline to consolidate her power. In the end, she broke away from the fate of being a sacrifice, opened a school for widows, and used the sword as a spear to let every silent corpse tell the buried truth.
