Qin Dynasty Weiyang

In 2026 AD, Lishan cultural relics metrologist Cheng Yan was calibrating a Qin Dynasty bronze mold during the night shift when he saw a door cracked in the wall. Those who crossed the gate claimed to be Ying Zheng with a sword. Identity cannot be established by one sentence. Emergency medical records, police transcripts, surveillance time, details of undisclosed cultural relics and conflicting historical data jointly push this absurd possibility to the public. The First Emperor also knew for the first time that the Qin he established after sweeping through the six kingdoms only lasted fifteen years. The door connecting the past and the present is fixed at the same place as the copper matrix and Lishan Mountain. It can only be opened for seven minutes at a time and cannot transmit electronic equipment. The twenty-six corrosion spots on the copper matrix are still crumbling one after another. Cheng Yan and doctors, historians, and engineers wrote down modern knowledge on paper and sent it to the Qin Dynasty, but they did not send guns, magic medicine, or industrial miracles. What they brought was: to verify the harm caused by drugs, to calculate the actual burden of grain, labor and punishment for the same household, to provide the names of missing workers, and to leave room for revisions, objections and withdrawal of the edict. However, the right rules also create new gatekeepers. Zhao Gao learned to control the entrance through review, and the false edicts began to use the most correct wording; Fusu's benevolence must withstand the test of frontier fortresses and warehouse records; Ying Zheng had to answer a question more difficult than seeking immortality: When the emperor cannot personally give orders, who can prove that his last words are true? Twenty-six times the door will eventually run out. From then on, Qin had to go through inheritance, famine, war and repeated power alone in the years without modern answers. Two thousand years later, when the perspective returned to modern times, the country still named "Qin" had long lost its old imperial appearance, but retained a more difficult habit...