At the end of the Southern Song Dynasty, the Mongolian cavalry was raging like a black storm in the Central Plains. Xiangyang City was in danger and the people were in dire straits. At this darkest moment, Liu Bei, the first leader of Shu Han, mysteriously awakened in Shu. He was given the task of rebuilding the Yan Han system and shouldering the mission of resurrecting the heroes of Shu Han, fighting against Mongolia, and reviving Ji Han.