He was once the "Dragon King" who made international mercenaries fearful, but at his peak, he was betrayed by his love, his brother died, and he was trapped in purgatory. Five years later, he returned to the city with supreme power, vowing to uncover the truth of the betrayal and settle the old blood feud. When the beauty meets again, powerful enemies are waiting around. Let's see how he, as the king of soldiers, sets off a bloody storm that sweeps the world.