Retired Soldier King: My Wife Discovered My Black Gold Empire

Three years ago, he was the feared "Dragon King" in the dark world, but he disappeared due to a betrayal. Three years later, he became a small security guard incognito and just wanted to live a stable life. Until that rainy night, in order to save the kidnapped female CEO, he had to resort to bloody methods. The next day, the whole city was shaken, and mysterious forces began to trace the "Dragon King". What made him even more troubled was that the aloof female CEO actually came to his door: "Who are you? Why do all your bodyguards call me - boss lady?"