When He Was in the Eastern Jin Dynasty, He Took Sima and Replaced Him

During the Yongjia Rebellion, the Jin Dynasty moved to the south, and the Five Barbarians invaded China; the artifact had no owner, the Central Plains was devastated, and the land of China was sinking. The north is intertwined with wars and killings, and the people are displaced; the gentry in the south are in a corner, just for their own purposes, and the people at the bottom are also in dire straits. Among these countless suffering people, Zhang Yan accidentally obtained the memories of future generations from dreams, and started his magnificent life from a commoner.