I don't know what's the reason for all this drama, just because the story was written in a book even if it's fiction can't it exist? , to this day no one knows why we exist and he wants to judge her existence from what I've seen so far he's just a court jester putting on a show for some god or greater entity, if a god can recreate the world of one piece as reality just for have fun what is the world where the MC came from than another story, and in my view if it's the real world it's a bad story.