Zhao Xuan, a modern programmer, died suddenly due to high voltage. His soul traveled to the Kaiju Year of the Southern Song Dynasty and became a thin tenant struggling to survive. At that time, the Song Dynasty was in decline, surrounded by Jin and Xia outside, and had the disadvantages of redundant officials, redundant soldiers, and redundant expenses. With the help of modern mathematical and physical knowledge, military theory, and the logical thinking of a programmer, he started by improving farm tools and fighting for land, and struggled to gain a foothold on the edge of survival.
Study classics and history, and at the same time spread the concept of "studying things to gain knowledge", use disaster response to stand out, and step into the edge of the system. They built water conservancy projects, reorganized officialdom, and founded new schools. They used hundreds of miles of land to verify the effectiveness of practical learning, but they also repeatedly fell into crisis because they touched the interests of the powerful.
Facing the Jin Kingdom's southern invasion, he was ordered to train troops to fight against the Jin Dynasty, improved gunpowder firearms, and created a new army. He made a splash in the battle to defend the city and gradually grew into a pillar of the empire.
Relying on his illustrious military exploits, Zhao Xuan was given the authority to carry out military reforms, build martial arts halls, set up weapons inspections, and build a new type of army. He successively eliminated the Jin Dynasty, defeated the Xia Dynasty, and managed Tubo, and included the Hexi Corridor and the Snowy Plateau in his territory. Then he pointed his sword at Goryeo, conquered Japan in the east, opened up the sea territory with giant ships and artillery, and reshaped the territory of China.
Pushing the Song Dynasty towards a new era of flourishing science and technology and prosperous sea power, a giant ship sailing to the ocean witnessed the magnificent future of this rewritten Chinese civilization.
