Lin Fu, a graduate of the Department of Modern History, accidentally traveled to the battlefield against Dong in the late Eastern Han Dynasty, which coincided with Sun Jian's army attacking Luoyang. He had no extraordinary powers, and only relied on the historical knowledge of the Three Kingdoms accumulated in his mind to survive in the chaos of the army, and won the favor of Sun Jian with his pragmatic words. At that time, although Sun Jian bravely led the three armies, he was trapped in geographical limitations and lack of talents, and was often jealous of the princes. Lin Fu carefully integrated into the camp, helping him to clean up military discipline, improve ordnance technology, and provide suggestions to appease the Jiangdong nobles to stabilize the rear; predict the movements of the princes, avoid Liu Biao's secret attacks, and recruit talents such as Zhou Yu and Lu Meng who have not met the emperor in advance; after the collapse of the alliance against Dong, he planned a strategic blueprint to first control Jiangdong, then plan for Jingxiang, and resist Cao Cao in the north. With his mortal wisdom, he assisted Sun Jian in escaping from his historical destiny and gathering the power of Jiangdong. After decades of southern and northern wars, he defeated Yuan Shao, rejected Liu Bei, and pacified Bashu. He finally helped the Sun family to defeat the heroes, end the chaos of the late Han Dynasty, re-unify the country, and allow the Han family to continue its legacy and create a different kind of peace and prosperity.