Chen Mo, a graduate of the Department of Modern History, accidentally traveled to Cao Cao's camp during the Yanzhou Rebellion at the end of the Eastern Han Dynasty and became an unknown soldier. He does not have any fantasy help, and only relies on the solid knowledge of the history of the Three Kingdoms in his mind.
When food and grass were scarce, Chen Mo offered suggestions to improve the farming system and help Cao Cao stabilize his rear foundation. Faced with the shortcomings of the military units, he proposed innovations in light cavalry tactics and helped Cao Cao's army break the deadlock in the Battle of Puyang, thus gaining Cao Cao's attention. Subsequently, he avoided historical mistakes: before the Guandu War, he warned against Wuchao Liangdao, and before the Chibi War, he urged to be wary of fire attacks and epidemics in the army, and gradually moved from a low-level counselor to the core decision-making circle.
In the troubled times where heroes compete for power, Chen Mo combines historical experience with a modern perspective to assist Cao Cao in defeating the separatist forces such as Lu Bu, Yuan Shao, and Liu Biao, step by step pushing the Cao Wei Group towards the goal of unifying the country, and personally participating in and rewriting the trend of the late Han Dynasty.