Well, sometimes the plot twist is that the girl was actually faking the abuse to get attention, but then she really does end up in a dangerous situation. The boy, in his attempt to save her, discovers her true motives. Another possibility is that the abuser is part of a larger, more sinister group, and by saving the girl, the boy gets drawn into a much bigger conflict. This could lead to him having to save not just the girl, but also many others who are in danger from this group.
A typical plot twist might be that the boy who saves the girl is actually from the future. He came back in time to save her from this abuse because in his timeline, something really bad happened as a result of her not being saved. Or perhaps the girl is a key figure in some sort of prophecy, and the abuser was trying to stop her from fulfilling it. When the boy saves her, they then have to embark on a journey to figure out what the prophecy means and how she can fulfill it.
For the boy, his backstory can be developed to show why he is so brave and willing to save the girl. Maybe he had a similar experience in his past or was raised to be a protector. The girl can be developed by showing her strength in the face of abuse. She could start off as a victim but gradually become more assertive. For example, she might learn self - defense skills from the boy after being saved.
One common theme is heroism. The boy usually shows great courage and self - sacrifice to save the girl, becoming a hero in the story.
One common plot twist is that they initially dislike each other but then fall in love. For example, in some stories, the boy and girl might have a bad first encounter, like getting into an argument over a misunderstanding. But as they get to know each other better, they realize they have a lot in common and start to develop feelings.
A plot twist might be that just when they are about to get together, an old flame of either the boy or the girl shows up. Say the boy's ex - girlfriend suddenly comes back into town and tries to win him back, creating drama and uncertainty in the budding relationship.
One common plot twist is that Bella might be in danger not just from the typical vampire threats but from a human organization that knows about vampires. Edward then has to save her while also hiding the existence of vampires from this group. For example, in some fanfics, there are hunters who target Bella to get to Edward, and Edward has to outwit them.
He could use his position of authority. Snape might confront the abuser directly. Since he's a teacher, he has the power to intimidate and put a stop to any immediate harm. He could also give Hermione a safe place to stay, like his own quarters (if it's within the rules of the fanfiction world).
A common plot element is the discovery of Hermione's situation. Usually, Remus somehow becomes aware that Hermione is in danger or being abused. It could be through his own observations, or maybe Hermione reaches out to him for help.
Well, it could start with Hermione showing signs of distress. Harry notices and starts to investigate. He finds out that there's a group of Slytherins who are using dark magic to mentally abuse Hermione, making her doubt her own abilities. Harry then challenges them to a wizard's duel and wins, forcing them to stop their abuse.
One common plot twist could be Zuko, as a girl, having to navigate the same political challenges but with new gender - based obstacles. For example, she might face different expectations in the Fire Nation's patriarchal society. Another could be a romantic sub - plot where characters who previously interacted with male Zuko now have different dynamics with her as a female. Also, Zuko might use her new form to her advantage in disguise, perhaps infiltrating an all - female group to gain information for her cause.
Well, sometimes in a bad boy and bad girl love story, a plot twist might be that they are both from rival gangs or groups. But instead of hating each other like they should, they start a secret romance. And then they have to figure out how to keep their relationship hidden from their respective groups. Also, there could be a plot twist where one of them decides to go straight and the other has to decide whether to follow or not.