Second-level sergeant Li Fei was at the scene of a bloody mission, and his soul returned to the late Tang Dynasty, when feudal towns were separatist and chaotic. Thanks to the upgrade system, he advanced through tasks and received rewards based on his level - from gold and silver grain to thousands of troops, from regular troops to special elite brigades such as Jin Yiwei, and even legendary generals served under his command. With the iron-blooded will of a soldier in his previous life, and the help of a system that defies heaven and earth, Li Fei is determined to rise in the troubled times: first become the number one general in the late Tang Dynasty, wipe out the four vassal towns; then raise the flag of righteousness to rule the country, ascend the throne to become the emperor and strengthen the national power; finally point the sword to the world, wield power all over the world, travel the world with iron hooves, and achieve eternal hegemony to unify the world and shock the world.