Huanyi Village had a strange disease rampant. Under the guidance of Elder Xi, the mountain guardian Changsheng searched for medicinal herbs for the villagers, but this was inefficient and dangerous, so Changsheng decided to find the legendary Nine-color Deer King to save the village; In the middle of the story, the demon queen strayed to control the palace and sought the trace of the nine-colored deer king in order to practice sorcery.