In the Biying Continent, human races, demon races, and alien races coexist. The foreigners are called "demon tribe" by the other two tribes because they are good at refining corpses and puppets. The alien race unscrupulously harmed the two human and demon races, causing the two races to unite, and the two races drove the alien race into a closed secret realm: the endless abyss. After this battle, the two races of humans and demons coexisted peacefully. Xiaoyu Mountains, a fateful encounter, the story unfolds here.