Luo He, a 20-year-old college student, met the "uninvited guest" Bai Xixi who changed his ordinary life late one night during the rainy season. This girl, who is only 1.4 Meters tall and weighs as much as an eight or nine-year-old child, has amber pupils and an overly delicate face. She looks like a 14-year-old girl who needs to be taken care of, but in fact she is a fox demon who has lived for 182 years.
Being regarded as an "extraterrestrial" by her peers because of her unstable transformation, Bai Xixi knocked on Luo He's door in embarrassment with a half-worn puppet fox. From the first time he unintentionally revealed his snow-white fluffy fox tail, to the time he confessed the secret "I am a fox demon", Luo He went from shock to heartache, and finally took in this little guy who looked immature but whose eyes concealed a hundred years of loneliness.
From then on, the days in the rental house became lively and heart-warming: Luo He taught Bai Xixi about the escalators, burgers and fries in the human world, and helped her choose a pink dress and a comb for combing her tail; Bai Xixi warmed Luo He with the innocence of a fox demon - giving him soft-boiled eggs, giving him "good luck stones" picked up in the mountains, and humming a tuneless ditty when combing her tail.
But the identity of the fox demon is destined to make this cohabitation life full of "little troubles": accidentally using the demon power to wither the pothos, having to hide the tail that can't help but be exposed when going out, and being curious about everything in human society like a "problem baby". But it is these clumsy and cute moments that bring the two lonely souls closer. Luo He finds the warmth of life in taking care of Bai Xixi. Bai Xixi is also here in Luohe, and finally has a "home" where she no longer has to wander.
