There is a rumor in the world that the owner of the Butterfly Valley is a miraculous doctor who can regenerate flesh from dead bones and rejuvenate with wonderful skills. The King of Hell tells you to die at the third watch, but he can keep you until the fifth watch.
No one has seen the true appearance of such a legendary miracle doctor. Naturally, no one expected that it was this little girl in her mid-20s.
Qin Xuan is a really good doctor, apart from being very imaginative and occasionally mentally retarded.