The legendary story of Liu Chan, the last ruler of Shu Han, who traveled back in time and was reborn as Emperor Gaozong of Southern Song, Zhao Gou. With his historical memory and modern thinking, he supported Yue Fei's northern expedition against the Jin Dynasty. Liu Chan changed his cowardly image in history and, against all odds, appointed Yue Fei, granting him full command power, which meant that "a general is not subject to orders from the emperor when he is away from home". At the same time, he rectified the government and reformed the military system, thwarting the conspiracy of Qin Hui and other pro-peace factions.