Armor: Starting as a loser, then unifying the world

Wang Kuan, a social animal, stayed at home all night playing King of Glory. After losing more than a dozen games, he fainted. When he woke up again, he found that he had become very old. A voice sounded in his mind, "Ding~ Welcome to the Armor World, I am your system, your current identity is Shadow Tyrant, and your goal is to unify the world. Please execute it immediately! The final reward is great, please work hard. ...