My Fortress in the Chaos

Finn Lane, a transmigrator, trapped in a war-torn ancient era, plagued by famine, the Age of Chaos. To escape forced conscription, he rescues twin sisters, awakening the 'More Children, More Blessings' Survival System. Relying on The System, he protects people, eliminates villains and bandits, building The Lane Fortress. Talented individuals join him. He trains guards, defends against invasions, builds an impregnable city, establishing his dominion in the Age of Chaos.