"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.
I've been reading various fanfictions for years, and I can say with certainty that at least seven out of ten writers don't understand what fanfiction means (fanfiction is about changing things we don't like in movies, TV shows, games, or even books, and shaping them with an ending or premise we do like). Stories like this are nothing more than copy-pasting the same story and the same terrible endings, just changing the color and the perspective of a few characters.