Xiaren, who traveled across the country, studied hard for ten years and wrote beautiful articles, but was impostered in the imperial examination and was thrown directly into prison to eat! In a desperate situation, the voice of his childhood friend Liu Erwa came from outside the cell - now he is Liu Jin, the powerful manager of Zhongxiu Palace! The former follower turned into a nobleman, Liu Jin opened his mouth to call him godfather, but in fact he came to find respect for the empress in the harem. He was also given a fatal choice: either become the empress's male favorite, kill the uncle and nephew of County Magistrate Yi who framed him as a testimonial, or be killed on the spot in prison! In order to take revenge and survive, Xiaren took the black knife and followed Liu Jin into the county government office at night.