Ye Chen, a young disciple of the Tianling Sect, has a soul resonance rate of only five percent and is regarded as a good-for-nothing. By chance, he enters a forbidden area in the sect's back mountain and forms a contract with a little white fox named Bai Li. In truth, she is the Ice Glass Female Emperor, a nine-tailed celestial fox who sealed the Heavenly Demon ten thousand years ago. Her power is suppressed by nine layers of seals, and their soul bond and resonance are the key to unlocking them. Ye Chen makes a name for himself in sect battles, attracting the attention of the evil cultivator Han Ji, before heading to the Myriad Spirits Academy and meeting companions along the way. Through missions, spiritual cultivation, and heartfelt soul-to-soul exchanges, the pair increase their resonance and uncover the secrets of the ancient war between gods and demons. Ye Chen uses his pure soul to break through his limitations, while Bai Li emerges from her loneliness. Together, they save each other, unlock the divine powers of the nine-tailed fox, and await the final battle.