Northern Song Dynasty Immortal Master

In August of the first year of Jingkang, the Jin army attacked the Song Dynasty for the second time and Taiyuan fell. The two armies of the Jin Kingdom were overwhelming and headed straight for the city of Tokyo. When the country was in crisis, the monarchs and ministers of the Northern Song Dynasty placed their hopes on Guo Jing, a soldier of the Dragon Guard Army, hoping that he would use the "Liujia Divine Weapon" technique to repel the Jin army! According to the historical trajectory, the Liujia magic soldiers recruited by Guo Jing were defeated by the Jin people, causing the city gate to fall. However, everything changed when a time traveler possessed Guo Jing.