Chen Yuan, a professor at Huaxia University of Science and Technology, unexpectedly transmigrated to the late Qing dynasty. As Napoleon's cavalry swept across the land and he faced formidable warships and guns, Chen Yuan chose not to repeat the old path. Instead, he used modern knowledge to upgrade outdated matchlock guns into automatic rifles, replace ox carts with supply trucks, and even make explosives from fertilizer. He became the “Demon of the East” in Napoleon's eyes, but a “Savior” in the hearts of the people of Huaxia.