College student Lin Xuan saves people from drowning and successfully travels through time to meet General Han Canglan of Zhenbei. Faced with the emperor's murderous situation of "all the birds are gone, good bows are hidden", he relied on the system of summoning heavy armored cavalry to enter the capital alone. During the confrontation in the court, it was discovered that the emperor was actually Fa Xiaolinye, and the two were both time travellers. They see through the true face of Xiao Shufei (a female water ghost who pushed people into seclusion in her previous life) and join forces to punish the villains. In the end, the two brothers, one leading the court and the other leading the cavalry, embarked on a thrilling journey to conquer the world.
