Soldier Li Aoruike is on the brink of death while carrying out a mission to breach a city when he unexpectedly enters the mysterious space known as the Gate of Truth. There, he gains special abilities that allow him to repeatedly come back to life and grow stronger. After accomplishing one extraordinary feat after another, he forms a cavalry unit and falls in love with the female knight Xi Ya. When 100,000 troops led by the barbarian Crow King lay siege to them, Li Aoruike relies on his extraordinary strategic brilliance and charisma to recruit a succubus and a hellhound Cerberus, and even wins the allegiance of a vast army of half-elves. After summoning ancient heroic spirits to devastate the enemy forces, he leads the allied armies to ultimate victory, becoming the commander-in-chief of the Northern Expedition Army and the Regent of the Elves.