Kill All the Immortals with One Sword and Gain the Eternal Fame

China is vast, and there is a time when the Immortals are hidden. In ancient times, the ancient heaven disappeared and the underworld was empty. From then on, every thousand years in the time of heaven and earth, we will experience the dark years when the heavenly demon comes to the world. On the day when the heavenly demon came to the world, the demons rebelled, the gods and demons plundered, the world was in chaos, and the people were in dire straits. There was a swordsman who became a Taoist from Mount Tiandu. With one sword, mountains and rivers were wiped out, and all the monsters in the world were sealed away. Since then, China has enjoyed peace. In the blink of an eye, the thousand-year period is approaching, the sky demon is resurrected, and the land of China will once again fall into endless killing. I don't know who will help the generals collapse the building in these troubled times and save the land of China from water and fire.