Laughable lie

They also learned that she was not currently in the Gao Manor, and claiming that she left with the Holy doctor. Her leaving was fine, but leaving with the Holy doctor?

That was quite laughable. A lie like that will only work to her parents, that doted her a lot. 

No one knew how the Holy doctor looked like, even in the Immortal Domain. They only knew that the doctor was a great contributor and benefactor to some beings throughout the entire domains of this world.  Probably on the other worlds as well. Who knows.

The doctor never cared about the background, as long as the exchange was acceptable, you will get help.

However, contacting the Holy doctor was just purely by chance. They only knew that the way he contacted was using a pawn crow, that's it. 

So, if one was on a verge of dying but your luck had not yet run out, there might be a chance for the Holy doctor to pass by and save you.