Amid the famine and chaos of a turbulent age, the people of Qingshan County are on the brink of despair. Young county magistrate Lu Annian possesses a grain supply system and knowledge far ahead of his time. Starting with a single bowl of plain rice porridge, he stabilizes public morale, introduces a work-point system, reorganizes household registration, builds city defenses, and forms grain-protection squads. Step by step, he establishes military manufacturing and commercial systems. Facing various forces, including bandits, wealthy merchants, and warlords, he relies on strategy and an iron fist to defend Qingshan County, breathing new life into a dying isolated city. As his power continues to grow, Lu Annian gradually becomes entangled in the greater struggle for supremacy, and an army of 100,000 heavily armored soldiers rises to change the fate of the entire realm.