Song Yunchu, a modern forensic doctor, transmigrated into the book and became the right prime minister of the fictional dynasty. In order to avoid the ending of being shot to death by random arrows in the original work, he voluntarily handed over power and asked to leave. However, he was unexpectedly left by the emperor Jun Liluo, who had the ability to read minds. Relying on her modern forensic knowledge and plot prediction ability, she resolves crises many times in court intrigues, protects others, and rewrites the tragic fate of supporting characters. She and Jun Liluo interact with each other in the game between kings and ministers, and at the same time, she calms down the royal family's battles, and ultimately protects the peace of her family and country.