[An aloof, possessive immortal lord x a quirky, clever fox immortal, a love spanning two lifetimes]
There are two arcs in all: one in the mortal realm and one in the heavens.
While in the mortal realm, the leads descend to undergo tribulations, but accidentally take the wrong passage. The fox immortal Yun Shuwan is reborn as a human demon hunter, while Lord Qingxiao becomes the seventh son of the Fox Clan's Azure Emperor.
Yun Shuwan has always been unable to resist fluffy little animals, especially a white fox with nine tails. Every time she teases him, Qingxiao's heart skips a beat.
But Yun Shuwan always runs off as soon as she has flirted with him, and Qingxiao can't take it anymore.
After Qingxiao doggedly pursues her, the two finally overcome society's prejudice and get down to business.
They restore the lost divine artifact, the Water-Clearing Eye, to the Cloud Palace; help the Demon King reclaim lost territory all the way from the southeast to the northwest; and find a way for humans and demons to coexist.
Their journey in the mortal realm finally comes to a happy end. But after they regain their true identities, Yun Shuwan, who is used to being carefree, refuses to acknowledge their marriage from their mortal lives.
"That marriage thread is for mortals to play with. You're an officer of the Celestial Punishment Bureau. How could you let love cloud your judgment?"
"Actually, I already promised the Butterfly Immortal we'd be together forever. You're too late, Lord Qingxiao!"
Qingxiao abandoned his usual gentleness and possessively grabbed her tail. "You have to take responsibility for what you've done. We're already married. Who else are you planning to be with forever?"
Premise: Humans and demons can live together in peace