The story unfolds with Chenxiang's daughter, Shen Huniu, as the protagonist. Half-immortal and half-demon, she grew up in Mount Hua since childhood, agile and unruly, eagerly wanting to go down the mountain to gain experience, but constantly blocked by her father Chenxiang on the grounds that the world is treacherous and immortals and mortals are on different paths. As the demonic Qi in Mount He stirs abnormally and the thousand-year seal loosens, villagers at the foot of the mountain go missing one after another. Huniu privately goes down the mountain to investigate, and after falling off a cliff, she is rescued by the mortal scholar Shen Yan. Through twists and turns along the way, she is quietly guarded by her childhood sweetheart, dragon prince Ao Nian, and supported wholeheartedly by the clear-headed and spirited caravan heiress Su Wanqing, while classic characters like Sun Wukong, Zhu Bajie, and Yang Jian also make their full appearances.