God of War to Protect the Country

He is the king who makes the world tremble, and he is the No. 1 Boss that the intelligence agencies of various countries spend a lot of energy studying. He created the most terrifying mercenary organization in the world and mastered a terrifying killing machine. And suddenly one day, he disappeared from everyone's sight. After escaping into the city, he gained a beautiful wife that everyone coveted. Love rival? Revenge? Opponent? No, the strong have no enemies, because they are already dead before they take action!