The Unyielding One of the Past of the Sacred Heart

In the 806th year of the Demonic Calendar, the leader of the Guangming Sect, Mo Yu, began to attack the other seven continents. The Guangming Sect's army successively captured Hua, Yu, Lei, and Yue Continents. Five of the eight continents in the world have been controlled. Just when Mo Yu was preparing to attack Cangzhou, he was stopped by Li Yu, the crown prince of the Sacred Heart Empire, outside the Luofeng City, the most desolate place among the four cities of Cangzhou, where 15 life-and-death battles finally took place. Facing the powerful Guangming Sect, how should Li Yu deal with it? ? ? ?