I think it was on wattpad though it may have been novelupdates, honestly don't know It was a system novel where the MC had to go through the world's reducing the blackening levels. In one, I think the first arc, he was sold to a mafia boss (ML) and looked a lot like a person who had betrayed the ML before. I've been thinking about this for days!! Please help
It wasn't this one but I'm now interested in this novel, thank you for introducing a new novel to me!