In the Chongzhen Dynasty at the end of the Ming Dynasty, the protagonist is a minor official who traveled through Cheng County to be the chief registrar. With a complete set of public knowledge of future generations in hand, he does not need a system, space, or exchange. He has only one golden finger - he knows exactly where history is going. He did not rebel, surrender to the Qing Dynasty, or surrender to the rebels. Instead, he chose a path that no one had ever tried before: legally reforming the imperial examination system under the eyes of Emperor Chongzhen, replacing the "eight-legged essay selection" with "application of knowledge and practical application", and cultivating a large number of talents in science, engineering, agriculture and medicine. The opponent is the civil servant group and the landlords and gentry all over the world, and the teammate is Chongzhen who is so desperate that only one bottom is left.
