Liao Jiahong, a doctoral student in the Department of History in the 21st century, accidentally traveled to the late Eastern Han Dynasty in a parallel world and became a disciple of a prominent family in Runan and a close friend of Cao Cao's classmate. Relying on his prediction of the direction of history and the knowledge system of the new century, he assisted Cao Cao, aiming to reshape China, and at the same time gain his own career and love in this magnificent era.