There's also a possibility that it could be a self - insert of the author. In this case, the author imagines themselves living in the Twilight world and having the ability to redo certain situations, which would make them the main character driving the new narrative in this fanfic.
The 'my redo life' part implies some form of self - inserted or alternate perspective. It could be that the writer is imagining themselves or an original character having a do - over in the Twilight setting. This fanfic might introduce new magical elements, different character developments, or even change the overall power dynamics between the vampires, werewolves, and humans.
Maybe it's a side character from the original Twilight books that the writer decides to give more depth to. Like one of the lesser - known vampires in the Volturi coven who has a secret past and motives that are explored in the fanfic.
It could be a woman who was once an ordinary Twilight fan but then became a trophy wife. So she brings her Twilight obsession into her new life. She might be someone who is constantly trying to balance her love for Twilight with her new - found status as a trophy wife. For instance, she may try to incorporate Twilight - related items or themes into her luxurious lifestyle.
Maybe it's Bella. In this fanfic, the focus could be on Bella's relationship with the 'brown - eyed beauty' and how they interact. They could become best friends or rivals.
Naruto himself could still be the main character in a way. The fanfic could be told from the perspective of someone new entering Naruto's life, but Naruto's actions, his dreams, and his growth would still be central to the story. For example, the new character could be a sidekick or a new friend who helps Naruto achieve his goal of becoming Hokage.
Edward could also be the main character. He has his vampire senses which could help him analyze the bloody fingerprints in ways humans can't. He might be on a mission to protect Bella and the rest of his family from whatever danger the fingerprints signify. Maybe he suspects that it's a new threat from a nomadic vampire group and he has to use his skills to track them down.
Arya Stark from 'Fire and Ice' could be a great main character in a 'Fire and Ice Twilight Fanfic'. She has the skills of a trained assassin and a strong will. In the fanfic, she could find herself in the world of 'Twilight' and use her skills to navigate the dangerous world of vampires and werewolves. Maybe she would form an alliance with the Cullens or the werewolf pack and help them in their battles.
There could be a young unicorn named Starlight. He might be a brilliant but overconfident student who Twilight has to guide. Another character could be a pegasus named Rainbow, who is always getting into trouble and Twilight has to keep in line.
One way to redo Twilight fanfiction could be to change the perspective. For example, instead of following Bella's story, focus on a side character like Jacob's point of view. You could explore his feelings about the whole vampire - werewolf - human love triangle more in - depth. This would give a fresh take on the story.
It could be a new girl in Forks who just moved there. She has this pink fluffy pencil case that she got from her grandmother. And she gets involved in the Twilight world because of the strange things that start to happen with the pencil case.