Shen Zhaoning, a doctor of modern psychology, once transformed into a cold palace in an enemy country and was deposed. Faced with the suspicion of the tyrant Xiao Yanzhi and the encirclement and suppression of the powerful officials of the Manchu Dynasty, she used her wisdom to maneuver on the edge of a knife. The death of the original owner is full of doubts, the hidden clues of the imperial concubine Chu Mingshuang, the mysterious blood curse of the guard Pei Jingshen, the secret library hidden by the old nanny... Every step of the story is shocking. When she discovers that the tyrant is actually living under the control of others, a chess game about revenge, redemption and the truth of identity has just begun.