It tells the story of four little demons who lost all their cultivation and returned to their original form. Because of the four life-saving hairs left by Sun Wukong, they regained their spiritual wisdom and found a new path in an abandoned mountain temple. They borrowed the power of human incense and wishes to resume their spiritual practice. From imitating the appearance of mountain gods to cure diseases, to establishing the "Langlang Immortal Sect"; from relying on hair to fight off enemies, to creating their own method of incense refining gods, they have experienced three disasters and nine difficulties, and have explored their way forward in the game of Buddhism, Taoism and Demon. In the end, this group of "waste demons" who were once ridiculed used their humble bodies to create a new path of incense and fire, and created their own immortal destiny between the human world and the heaven. This is an Eastern fantasy fable about rebirth from despair, glimmer of light turning into a torch, and the true meaning of the word "cultivation".
