There could also be some new characters. Maybe a wizard or witch who works in a wizarding fashion store where Hermione gets her new clothes. This character could give her advice on what styles would suit her best and become a sort of friend during her makeover process.
Well, it could be about Hermione deciding to change her look completely for a fresh start in the summer. Maybe she gets a new haircut, like a stylish bob, and starts wearing different types of clothes, more modern and fashionable. She might also experiment with makeup, going for a more natural look during the day and a bolder one for evenings out.
In this kind of fanfiction, Hermione might get a new look that completely changes how others perceive her. For example, she could change her hair style from the bushy curls to sleek straight hair. This new appearance might attract the attention of characters who previously didn't notice her in that way.
Obviously Hermione herself is the central character. But her friends like Harry and Ron would surely be involved. They might be shocked or supportive of her new look. Also, characters like Draco Malfoy could be involved. He might react with jealousy or new - found interest depending on how Hermione's makeover changes her overall presence.
Hermione's character could develop in several ways. Firstly, her new look might make her more aware of the shallowness of some people who only judge by appearance. So, she might become more empathetic towards those who are not conventionally attractive. Also, she could start using her appearance as a tool, like in negotiations or when trying to persuade someone. Since she was always smart, now she has an additional asset. This might make her more strategic in her actions. Moreover, she may attract new friends or even enemies because of her changed look, which in turn will shape her character further as she deals with different types of relationships.
Well, Hermione is obviously a main character since it's about her getting even. Harry and Ron might also be involved as her friends, either helping her or being caught in the middle of her revenge plot.
Harry would be extremely worried. He'd probably rush to her side immediately and try to do whatever he can to help. He might blame himself for not being there to protect her. Ron, on the other hand, would be in a state of shock at first and then would try to use his humor to lighten the situation a bit while still being very concerned. Hagrid would be devastated. He sees Hermione as one of his students he cares about, and he'd likely bring some sort of magical creature - related remedy, thinking it could help.
The bullies themselves could be important characters as well. Their presence could create the conflict that drives the story forward. And there might be a love interest. It could be a popular boy in school who starts to notice the girl after her makeover and falls for her, adding a romantic sub - plot to the story.
Ron could be a main character. He might be the first one to notice Hermione's new haircut. He could have a really strong reaction, like blushing because he suddenly finds her even more attractive with the new look. And their relationship could develop further because of this change in her appearance.
Harry could also play a significant role. He could be an ally or a protector. Given his own heroic nature from the original series, he might assist Hermione in times of danger or political unrest within the duchy.
Harry and Ron would most likely be main characters. They are Hermione's closest friends, so they would be involved in her life change. They might be the ones to give her advice or react to her new appearance.