A little fox, about to cultivate her ninth tail, loses a thousand years of cultivation in a single moment. By a twist of fate, she binds with a mysterious system capable of shuttling through different worlds. As long as she completes the missions of each world, helping people in the stories resolve their obsessions and change their regrets, she can regain her cultivation and challenge the realm of the nine tails once again, becoming the legendary Nine-Tailed Celestial Fox.