Modern man Lin Xiaofan transmigrates by accident and finds himself in the body of none other than Zhu Yuanzhang, the founding emperor of the Ming dynasty! At the time, his grandson Zhu Xiongying is gravely ill with smallpox. Using his "Sign-In Achievements System," Lin summons the miracle doctor Hua Tuo to save the boy, then discovers that his daughter-in-law, Lady Lu, was responsible for the smallpox. Lin Xiaofan has Lady Lu executed without mercy, rewriting the Ming dynasty's tragic fate. From then on, he governs with tireless dedication, using modern technology to prevent Empress Ma from dying of consumption and Zhu Biao from an early death. He launches an Industrial Revolution and builds an invincible fleet. Within just a few decades, Ming cavalry has conquered the world: the Dragon Banner flies across the South Seas, Europe, and the Americas. Only Japan dares to resist, and it is wiped off the map, leaving not a blade of grass behind! Chinese language and Han clothing spread across the globe, and the princes are enfeoffed across the continents. Meanwhile, Lin Xiaofan and Empress Ma remain as loving as ever, watching over a world where every land beneath the sun and moon belongs to the Ming. Thus begins an epic tale of conquest on a world-shaking scale!