Cao Cao of the Three Kingdoms: Dear Brother, You Are so Insidious!

Lin Fan, a modern physics student, travels to a deserted island in Hainan at the end of the Eastern Han Dynasty. Faced with the slash-and-burn farming of the Baiyue tribe and the separatist war between the Central Plains lords, he uses fluid mechanics to improve ships, uses geometric knowledge to plan terraces, refines sulfur in volcanic craters, and makes refined salt on the beach. When Sun Quan was building large ships in Jiangdong, his "Qiongzhou Navy" was able to cross the South China Sea against the ocean current; when Liu Bei was stationing troops in Shu, his "Sea Salt Caravan" had already sold ironware to the Nanzhong tribe; when Cao Cao was facing a confrontation in Guandu, he was taking advantage of the monsoon to sail merchant ships carrying kerosene into the tributaries of the Yangtze River. Everyone thought this was a barbarian regime on a peaceful island. It was not until the first flag embroidered with gears and ears of rice was planted on the top of Jianye City that the monarchs and ministers of the Three Kingdoms were shocked: Qiongzhou, which was regarded as a miasma by the Central Plains, had already woven a network of influence covering the entire south under the guise of "farming" and "trade". Lin Fan's ultimate goal has never been to settle down in a corner - when he stood at the top of Luoyang City overlooking the Nine Provinces, the magnet compass in his hand was pointing to an ocean wider than the Three Kingdoms.