The gears of power of the Ming Dynasty are rolling forward, carrying the undercurrent of corruption. Shen Mingyuan, a young man from a poor family, holds on to the magnet compass and "Nine Chapters of Arithmetic" left by his father, and uses the art of surveying and mapping as a blade to open up the shady story of clan land annexation. He used magnetic particle imaging to expose fraud in imperial examinations, used ancient papermaking methods to track arms smuggling, and used a chain water level meter to tear open the scars of corruption in water management of the Yellow River. Under the shackles of the era when "everything is of inferior quality, only reading is high", he used the unpublished manuscript of "Tiangong Kaiwu" as a spark, used the four-column accounting method to awaken the people's wisdom, and denounced the eight-legged corruption in the Western Xia Dynasty in the Hall of Supreme Harmony. From the secret chamber of the ancestral hall to the Yellow River dam, from the fraud case in the examination room to the imperial power game, a revolution with hard-core technology as the spear and practical thinking as the shield is quietly starting a prairie fire on the land of the Ming Dynasty.
