Chen Yan, a modern history researcher, accidentally returned to the chaos at the end of the Eastern Han Dynasty. He was rescued by Sun Jian's soldiers in the chaos of the war and joined the Jiangdong Tigers camp. He had no extraordinary powers and no systematic blessing. He only relied on the historical context and pragmatic knowledge of the late Han Dynasty that he was familiar with to silently assist Sun Jian.
He first improved the iron smelting process in the army to enhance the durability of weapons and armor; then he organized the grain and grass account books, optimized transportation dispatch, and solved the problem of lack of food during the march; when he challenged Dong, he offered advice to avoid Dong Zhuo's ambush, helping Sun Jian successfully capture Yangren City and kill Hua Xiong; he also repeatedly used history as a lesson to remind Sun Jian to be wary of plots by princes and internal dangers.
As his suggestions came to fruition time and time again, Chen Yan gradually gained the trust of Sun Jianjian and became an important adviser in his account. From pacifying Jiangdong, integrating forces, to dealing with powerful enemies such as Yuan Shao and Cao Cao, he always based himself on reality and used his meager strength to make up for the shortcomings of Sun Jian's camp, helping him avoid historical defeats and steadily advance towards the goal of wiping out the princes and unifying the country step by step.
