During the war in Northern Xinjiang, the useless prince Xiao Chengyuan was thrown into the city where he must die. The Beidi cavalry besieged the city, but no one in the court came to rescue them. In a desperate situation, the mythical war system is activated: improving crossbows, developing gunpowder, and training new armies. From 3,000 remnant soldiers to 30,000 strong troops, from an outcast in a border town to the marshal of the world's soldiers. When the fire cannon tore through the grassland and the iron armor trampled through the royal court, he used modern military thinking to set off an iron-blooded revolution in another world. Waste? Then let me show you how waste lives.
