When the Storm Changes, the Dragon Watches Me Restart the Prosperous Age

Once he traveled through time and became the Ninth Prince of the Tang Dynasty, he had no system, no golden fingers, and was just an ordinary person. Experienced all kinds of cold looks. Aristocratic families are running rampant, treacherous ministers are in power, and countries are coveting you. What will you do? Let's see how Li Xuan fights against the prince, fights against the aristocratic family, and fights for the Tang Dynasty all his life