Greatest Evil (Fanfiction)

What happens when The God of Evil himself decides to gift the most empty person with All For One? Hael was a boy with no particular reason to be anything. He was an empty, clear mould. And The God of Evil decided to fill this empty mould with villainy. This is not the story of a reincarnated boy going through the multiverse and his wish fulfillment. This is not the story of a person with tragic back story becoming evil and cruel for a reason. This is not a wacky, spastic story about a person with a system who goes around getting harems and having fun while being good. No. This is the story of an empty boy, who is a villain for fun. MC is based off my friend.