Ancient times, the ancient times, the land of China, ancient times, no sky, no land, thunder and lightning, the sky and the earth break apart, reincarnation, thousands of years later, gods guard the people on every road, the fairy world unifies the people, then the earth shakes, the human world is destroyed, the people disperse in panic, the dragon girl under Nuwa's throne, the whereabouts of the dragon tears are unknown, ten thousand years of grudges, after the first life is over, the two brothers reincarnate and renew their relationship in the second life. Ten thousand years later, in the third life, they will fight side by side to defeat the evil spirits of the demon world. This is how the story begins.