In the Chu Dynasty, Lin Zhao, the real daughter of the Lin family who was transferred to the countryside, was involved in a house fight because of her concubine Lin Tang's plot to poison her mother. At a critical moment, she activates the ancestral jade box she has worn since childhood - it is actually a "deduction simulator" left behind by interstellar civilization. It can consume mental energy to simulate house fighting scenes in the next 24 hours and accurately predict the opponent's next move. Using the simulator, she first solved the mystery of her aunt's poisoning using what she learned as a drug farmer, and then substantiated the perjury of Lin Tang's "collaboration with bandits". She also unexpectedly discovered that the girl-swapping case was related to the interstellar energy core secretly hidden by her father. In the process, she teamed up with the prince Gu Yan, who appeared to be a descendant of an interstellar remnant, to smash the conspiracy in the harem while repairing the memory of civilization in the jade box. Finally, she exposed the enemy spy force behind Lin Tang, regained her identity as a legitimate daughter, and secretly fell in love with Gu Yan during the collision between the ancient house and interstellar technology.
