Chen Yan, a modern history enthusiast, accidentally traveled to the military camp where Sun Jian conquered Jingzhou at the end of the Eastern Han Dynasty and joined his command as an aide. He does not have any supernatural powers, but relies on his familiarity with the historical context of the late Han Dynasty to carefully assist him.
He first used detailed analysis to remind Sun Jian to be on guard against Huang Zu's ambush and help him temporarily avoid the danger of death; then he offered suggestions to rectify military discipline and reclaim wasteland east of the Yangtze River for military supplies, laying a solid foundation for Sun Jian's power. After the alliance against Dong collapsed, he assisted Sun Jian in joining Liu Yao and rejecting Yuan Shao, gradually integrating Jiangdong counties and counties, and gathering strength to counter the Central Plains.
From the tactical suggestions for the Battle of Yangren City to the planning and layout of the Jiangdong Foundation, Chen Yan always used human wisdom to accompany Sun Jian step by step in the troubled times of the feudal princes, and arduously moved forward towards the goal of unifying the country.