In the late years of the Great Qian, the mad emperor spread corpse poison in pursuit of longevity, causing a zombie catastrophe. The modern time-traveler Xiao Yuan was bound to the Iron-Blood Empire System on his way to exile, fighting for survival in a desperate situation, gathering refugees, occupying Pingyang City with military technology and strategy, and uncovering the royal conspiracy. He raised troops to march north, regicided to establish the new Dawn Dynasty, and promoted the firearms industrial revolution. Facing the million northern border zombie horde commanded by the ultimate corpse king, Xiao Yuan led the Divine Machine Camp to a decisive battle with firearms, announcing that the offensive and defensive roles had reversed after a pyrrhic victory, opening a brand-new chapter of human counterattack.