"An everyday man gets thrown into the world of twilight thousands of years before the start of the plot. With immortality and incredible abilities. How will this man's presence change the outcome of the original story?" [ this is a slow-burn fanfiction; the MC is just trying to experience life and enjoy it, not to take over the world and rule from the shadows.] I do not own twilight or the characters of the twilight world, all that belongs to me are my own characters.
This is a great story you have here, I like how you have the OC interact with the characters of The Simpsons while getting involved in the events from either the Simpsons and/or the people of Springfield. Question, have you thought of writing another story like this but with a different show like King of the Hill? No one has done a fanfic on that show yet.