The core power here is Yin Virtue. With Yin Virtue, the thresholds of all things can be as if they were non-existent. This Yin Virtue not only manifests in the local cultivation system but can also serve as the currency in daily transactions.
Naturally, the purchasing power using Yin Virtue is quite astonishing.
As for how to acquire Yin Virtue?
There is only one way, and that is to enter the realm of ghosts, under the gaze of the Ghost King, to offer up a perfect escape, thereby obtaining Yin Virtue.
Yin Virtue is intangible and immaterial, but it can be manifested through other objects.
For instance, at this moment, the character "one" above Tan Shuchang's head.
On a certain little girl's head, there wasn't nothing just because she hadn't yet obtained Yin Virtue; on the contrary, a bright and conspicuous "zero" appeared.
Because of this "zero," many of the local cultivators, upon their first glimpse of this little girl, showed disdain.
