When the soul of a modern engineering student passes through Li Chengqian, the deposed prince of the early Tang Dynasty, a mad rush to rewrite history with technology begins! He is familiar with history books, and with his "golden fingers" such as steel filling method, flintlock gun, and compass, he creates a steampunk version of the Zhenguan era in the maelstrom of Tai Chi Palace. From improving the cultivation of sweet potatoes in the sandy land of Longyou to blowing up pirate ships with "thunders" in the coral reef areas of the South China Sea, Li Chengqian's earthy wisdom is full of dimensionality reduction attacks: putting asbestos cloaks on war elephants to resist Greek fire, using Arabic numeral ledgers to remove door valves to smuggle iron ore, and even using steam greenhouses to grow out-of-season sweet potatoes in the Arctic Circle. While the impeachment proceedings against Wu Xing and Qi Wang were still trembling, his Shenhuoying warship had already sailed around the Cape of Good Hope with the golden lion flag and carved the word "Zhenguan" on the rocks on the African coast. With the development of rubber plantations in the New World, Persian glaze workshops, and Antarctic magnet mines, Li Chengqian's conquests were no longer limited to land: steam trains crushed the yellow sand of the pyramids, telegraph lines traversed the Asian wilderness, and even the European Pope's St. Peter's Basilica was transformed into a math museum. The most wonderful thing is the magic stroke of the closed loop of time and space - when the steamship passed by the North Pole, he looked at himself from the previous life's textbook as "rebellion and was abolished", and finally understood that he was not tampering with history, but allowing the glory of the Tang Dynasty to bloom thousands of years in advance.
