When Shen Yu'an was still a fox, Cao Yan, who lived in seclusion deep in the mountains, saved him.
To repay her kindness, he worked hard at cultivation and eventually took human form.
But Cao Yan, a human with a short lifespan, never lived to see what he looked like after his transformation.
Heartbroken, Shen Yu'an swore he would wait until Cao Yan was reincarnated.
At last, after seven long centuries, Shen Yu'an met Cao Yan again in the modern world...
