After Being Single, I Decided to Protect All Mankind

I come from Youxing, an immortal alien. I had nothing to do with the world, and they said I was a waste. I'm tired of seeing the world turn cold and cold, and they say I don't understand the ways of the world. I treat illnesses and save people, but they suspect that I don't have a medical license. Until, countless vests fell off one after another. Everyone knelt down in fear: Welcome the Lord back!