A civet cat who mistakenly eats the soul of the Emperor of Heaven, and a down-and-out scholar Li Shiyi who fails in many trials.
The temple was destroyed on a rainy night, and Li Shiyi rescued the dying civet cat. He didn't know that the civet cat had just swallowed the golden elixir made by the Emperor of Heaven's Yuanshen. One day of practice was equivalent to that of ordinary monsters in one year. She gradually understood human nature and transformed into a human form. She accompanied him as he failed the exam, wandered around the world, married a wife and had children, and accompanied him from black hair to gray hair. When he was dying, she knelt in front of the bed and made a promise to accompany him in the next life. Three hundred years later, the reincarnated scholar once again set out on the road to take the exam. She spent thousands of years cultivating herself, wreaking havoc in the imperial city for scholars and fighting against the immortals in heaven. In order to save the scholar who died in the form of a demon, she took the initiative to become the nourishment for the return of the Emperor of Heaven. She was willing to give up ten thousand years of cultivation and all her memories, just to exchange for the scholar's afterlife without being disturbed by gods and monsters. The same civet cat from the ruined temple, with all its cultivation lost, fell from the beam, wrapped its tail around the scholar's wrist for the last time, then turned around and disappeared into the rain. When he wakes up, he won't remember anything.