In the harem of Da Chu, the unpopular Princess Jing Zhao, Xiao Zhao, was demoted to a daughter-in-law because her mother's family was convicted. When she first entered Ye Ting, she was made things difficult by the aunt in charge and poisoned by a favored noble concubine. When he was about to die, he awakened the "Palace Fighting System" and triggered the first mission "Finding the real culprit of the poisoning". She used the "Palace Appraisal" function of the system to find out that the female official who married the imperial concubine was behind the scenes. Instead, she replaced the poisoned wine with osmanthus nectar and "accidentally" knocked over the emperor Pei Yan when he was driving, exposing the imperial concubine's evil deeds. Since then, the system has successively unlocked "Phoenix Seal Jue" (increasing the deterrent power of status) and "Human Heart Scale" (perceiving other people's emotional value). Xiao Zhao has been promoted from the prostitute, and he has outsmarted the false pregnancy frame-up, intercepted the secret letters of foreign ministers and concubines collaborating with the enemy, and even used the "Made Box Secret Language" provided by the system to decipher the empress dowager's final handwriting and reveal the truth about her mother's poisoning. In the end, she sat firmly in Fengqi Palace as a palm-printed concubine. Emperor Pei Yan was both wary of her methods and fascinated by her wisdom. The concubine who once bullied her was deposed as a commoner. She ended up with hatred in the cold palace watching the "Final Mission Reward" released by the system - the "Full Records of the Palace" that recorded all the secrets of the harem in the past thirty years. The full text ends with Xiao Zhao caressing the system panel and chuckling, "The wind from the Forbidden City has finally reached my feet." The excitement is dense, and every chapter must have a twist in the face.