Chen Yan, a graduate student in the Department of Modern History, accidentally traveled to the eve of the Battle of Guandu in the late Eastern Han Dynasty during an ancient book compilation, which coincided with Liu Bei's attachment to Yuan Shao and his future was bleak. He has no extraordinary power. He only relies on his solid historical knowledge and compassion for the people's livelihood in troubled times. As a commoner, he seeks an audience with Liu Bei. He bluntly speaks about the general trend of the world and points out the key to the dispute between Yuan and Cao and the strategic value of Jingzhou.
With his grasp of historical details, Chen Yan first suggested that Liu Bei contact the Jingzhou nobles in advance to avoid the dilemma of relying on others later; during his stay in Xinye, he assisted Zhuge Liang in optimizing logistics and improving farm tools to stabilize people's hearts; before Changban slope, he predicted the route of Cao Cao's pursuit, helping Zhao Yun reduce losses and successfully protect his master.
Since then, he has always stayed behind the scenes as a staff member, never seeking credit or overstepping his authority. At key moments such as joining forces with Wu to fight against Cao and seizing Sichuan, he used strategies in line with the times to make up for the shortcomings of Liu Bei's group, reconcile the conflicts between Guan and Zhang and other generals, and ultimately assist Liu Bei in gradually defeating the heroes, striving to end the troubled times and restore the Qingming Dynasty in the Han Dynasty.
