Crown of Prosperity: the Rise and Glory of the Empress

On a water-blue planet, there are two big countries, the Sky Alliance and the Snowy Dynasty, as well as countless small countries. All the small countries are headed by these three countries, until Zi Chen was born. After Zi Chen was established, he quickly captured dozens of small countries. The subsequent generations of the country could not keep up, so they continued to stagnate until an emperor was born who used Zi Chen's centuries-old foundation as a chessboard. He sacrificed his own life so that Zi Chen's prosperous dynasty once caught up with and surpassed the other two empires.