Chen Yan, a modern history enthusiast, accidentally traveled to the late Eastern Han Dynasty. It happened that Yuan Shao was sitting in the four prefectures of Ji, You, Qing, and Bing. He was at the peak of his power but hidden in crisis. He joined Yuan Shao's army without any extraordinary abilities. He only relied on his familiarity with the situation in the late Han Dynasty and his pragmatic thinking.
Faced with the internal factional strife within the Yuan Shao Group and the vulnerability to interference in strategic decision-making, Chen Yan avoided empty talk and started from the grassroots level: first, optimizing the grain and grass transportation process to solve the problem of logistics loss of the army; then improving the basic training methods of soldiers to enhance the army's actual combat resilience. On the eve of the Battle of Guandu, he urged Yuan Shao to postpone his southward march and give priority to stabilizing the foundation in the north, appeasing the refugees within the country, and at the same time coordinating the relationship between Yan Liang, Wen Chou and his advisers to avoid internal strife.
Since then, he has always used historical facts as a guide to propose strategies that fit Yuan Shao's actual power, assisting him in gradually wiping out the separatist forces such as Cao Cao, Liu Bei, and Sun Quan, reversing the original historical trajectory step by step, and helping Yuan Shao finally integrate the world and realize the reunification of the nine states in the late Han Dynasty.
