Ah-Li is the apprentice of the Daoist Qiu Jue and they roam the country exercising demons.
It is not until they reach the capital that they hear of the suspicious ghost mansion owned by the seemingly richest man in the capital!
Just what is going on in there?
Ah-Li will not rest until she finds out (though her master really doesn't want to bother about it?!)

Xie Yan, the spoiled daughter of a general, lost her parents overnight, yet because of her family status, was involved in an “emperor-minister political struggle” in the royal court. At the young age of 7, she was sent to the emperor’s harem, and became the “young empress” in name only. Can the young orphan single-handedly stir up a storm in the turbulent palace?