Edward could also be the main character. He has his own demons and has caused a lot of pain, especially to Bella at times. A fanfiction could explore a scenario where he is the one with the broken heart, perhaps due to some mistake he made that made Bella truly leave him for good this time. And then a character, maybe a vampire with a different kind of power, steps in to mend his heart.
It could be Bella. Since she goes through so much heartache in the original Twilight series, it would make sense for her to be the focus of a fanfiction about mending a heart. Maybe after the events with the Volturi or some other new threat, she is left broken and someone new comes in to help her heal.
Alice might be the main character. She's always so perceptive, but what if something happened that she couldn't foresee and it broke her heart? Maybe she loses her ability to see the future temporarily and it makes her feel lost and broken. A new character, perhaps a half - vampire half - human hybrid with a special gift related to time or perception, could come into the story to mend her heart.
It could also be that in this fanfiction, a character from the Twilight universe who has been wronged, like Jacob when Bella chose Edward, has his heart mended by an unexpected source. It might be a vampire from a different coven who has a different view on relationships. They help Jacob see that there are other things in life besides Bella, and through their interaction, his heart is mended as he discovers new purpose and new relationships.
The 'I'll Mend Your Heart' Twilight fanfiction is a beautifully written piece. It not only focuses on the romantic aspects but also on the self - discovery of the characters. It portrays how they grow through the process of having their hearts mended. The descriptions are vivid, and the dialogue feels very natural, which makes it easy to get immersed in the story.
The special thing about it is the fresh perspective on the Twilight characters. It takes a deeper look at their emotional states.
A young vampire who was recently turned against their will. They are lonely because they miss their human life and family, and they don't fit in with the other vampires yet. They are constantly haunted by nightmares of their transformation and the life they've lost.
It could be someone completely new. A character that the author creates to disrupt the status quo in the Twilight universe. This new character might have unique powers or abilities that change the course of the story.
It could be a new character, like a young girl who has just moved to Forks and discovers she has psychic powers. She then gets caught up in the existing drama of the twilight world.
I don't have information on this novel, so I can't say who the main characters are.
Captain America might be the main character. He represents the heart and soul of the Avengers in many ways. In this fanfiction, he could be the one leading the team through an emotional crisis, using his unwavering moral compass to guide them and protect the heart of the team and the world they are trying to save.
Perhaps it could be a minor character from Twilight who somehow ends up in a situation where they are kidnapped by a creeper. This would give the writer a chance to explore that character more deeply and in a completely different context. For example, a character like Jessica from Twilight could be the main character. She's not a central figure in the original story, but in this fanfiction, she could have a whole new adventure.
It could be a new character entirely. Maybe a young vampire who was turned recently and is still adjusting to the 'alive inside' state of being undead. This character could struggle with the morality of being a vampire while also trying to fit into the Twilight world's complex social structure.