I Act as a Golden Finger for the Demon Lord in the Righteous Way

In modern society, during a brain-computer interface upgrade surgery, young Zhao Yun had an unknown accident occur during anesthesia because his smart watch was not disconnected. The consciousness was forcibly "transferred", and when he woke up, he was already in a world of cultivation, occupying the body of an old mortal handyman. He has no memory of the original owner and does not know his identity, age, and origin in this world. He can only passively accept the reality: He became an old handyman at the bottom of a certain righteous sect, doing the lightest work, living in the shabbiest house, and could be kicked out at any time and left to die. The only exception was that the smart watch, which was supposed to be a piece of modern technology, did not disappear, but continued to operate in a strange way. The person who picked up the smart watch is the Demon Lord of this world.