In the world of xianxia a forbidden cultivation has been found by someone, A cultivation technique about forming a cult in which their undying faith of you makes you stronger.
So as you can see the concept of this story is about forming a cult in which you are their god or being that they serve with all their life.
You can choose whether the xianxia world is already a story or Create a new Xianxia world.
The background also depends on you, whether The MC has a strong background or just some rando that is just lucky to pickup the Cultivation Technique.