Living in a World Created by my OC

Demian awakens in a strange and seemingly empty space. Suddenly there appears a man who looks strangely like his past self. He introduces himself as a great deity called Dairen the Unfallen, and states that Demian is about to enter a new world, with magic and monsters. Recognizing this man's name, Demian realizes why Dairen looks as he does: he is a character Demian had created and used in adventure stories and fantasies for many years. But this couldn't be possible, could it?
This is a story following Demian as he travels through a world created by Dairen. Going on adventures and trying to experience everything the world has to offer.
All italics are Demian's thoughts unless otherwise specified.
I keep imagining Nicole with quite a foul mouth, but I've kept it without cursing for now so it's open to more audiences. Do let me know if you think it'd be better the other way.
If character thoughts or dialogue are a little confusing, it's probably because these are based on how I feel I would speak or think, and I have odd speech and thought patterns, so I apologize for this in advance, and yes, I do seriously use "aye" for yes on occasion. I've also forgotten much from school as far as sentence, story, and paragraph structure, so help and lenience would be greatly appreciated.