Global Pollution, I Bring My Own Purification

[Nu Wu + Wasteland Apocalypse + Elements + Microxulu] My name is Guifeng, I am a survivor under the pollution of the apocalypse, and I am the only person with the ability to purify in the world. God gave me a golden finger but not an instruction manual. It is very powerful and I have to explore it myself. But I don't have any lofty ambitions. I originally just wanted to take the public exam in the apocalypse, find what I want, and then spend my short life. But things are getting more and more wrong. Am I not the weakest and just a transparent person who is lucky enough to be in the top team? Why do everyone come to me for help? I remember I refused, right? Forget about humans, tell me, a deformed species with eight heads and nine arms, a mutant plant that makes me vomit after looking at it, and something with the upper body of a fish and the lower body of a human also come to me? I am a lazy person but I keep killing and killing. I am an orphan, please let me go. I'm so tired and numb that I want to take a nap but I'm still woken up. Wake up, the top leader has called you to take over. I know, I know, serve the world and live for myself.