The Bull Demon King and Hou Yi were all in the four novels, Great Wilderness Immortal Court, Imperial Dragon Yang Zun, Journey to the West: I Am Barbarian Niu, and Primordial God of Arrows Hou Yi. These novels were all Xianxia-Mythology-Cultivation novels or Fantasy-Eastern Fantasy novels. Among them, the Great Wilderness Immortal Court belonged to the Dynasty Conquest category. In these novels, Bull Demon King and Hou Yi were both important characters, and their plots were also very exciting. I hope you like this fairy's recommendation. Muah ~😗