A simulation system in the world of cultivation

I want to write a story that I like. As a fan of xianxia stories, I would like to write something unique. How many cliché stories I've read and I want to do that too (Unique). English is not my native language, write about errors in the comments.
___________________________________________________________________________________________________________________________________________
A well-paid and easy job, what else is needed for complete happiness. Having acquired everything that others dream of, our hero dies from a strange disease that experienced doctors cannot identify and is reborn in the Cultivation World. What will happen to the main character, what he must overcome in order to become a person who just wants to live.