For thousands of years, the two realms of immortals and demons have been at war, and they are incompatible with each other. Yulan, a nine-tailed white fox who has practiced for thousands of years on the top of Lingshan Mountain, transformed into a human form in the snowy mountains. On the way to perform his mission, he came to the mortal world and met Xiao Yi, a disciple of the Shenyu sect in the immortal world. Since then, the fate of the two has been closely linked. They have experienced a lot together and have grown up through hardships. After a long time, they found the mystery of their life experience, and the two gradually understood the importance of feelings and responsibilities, but the good times did not last long. Yulan and Xiao Yi's affairs were eventually known to the fairy world. In the end, Yulan blocked a fatal blow for Xiao Yi and was sealed in the Holy Snow Mountain. After that, Xiao Yi embarked on the road to find his wife.
