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.
Another possible main character could be a native of the duchy, perhaps a nobleman who is initially skeptical of Hermione but later comes to respect and even fall in love with her. This character could introduce Hermione to the unique traditions and values of the duchy.
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.
In this type of fanfiction, Hermione's relationship with the professors also changes. She might be more drawn to Snape, seeing his Slytherin qualities in a new light. Snape might even become a mentor to her in some ways, guiding her in the study of potions and dark arts defense. With Dumbledore, she could start to question some of his decisions regarding the treatment of Slytherin house. And as for her peers, she could become an outcast among the Gryffindors for her Slytherin - loving ways, but at the same time, be welcomed with open arms by some of the more progressive Slytherin students who are tired of the house's bad reputation.
Madame Maxime, the headmistress of Beauxbatons, would surely play an important role. She might be initially skeptical of Hermione but later come to respect her. Also, there could be a young male wizard at Beauxbatons who is intrigued by Hermione's intelligence and Hogwarts - style magic. He could try to learn from her and in the process, they become friends and face challenges together in the school.
One of the main characters could be Hermione's old best friend from primary school. Maybe they used to share secrets and now this friend is curious about Hermione's new life. Another could be a former teacher who remembers Hermione as a brilliant student and is excited to see how far she's come. There could also be a bully from her primary school days who has now changed and is trying to make amends.
Ron would most likely be one of the main characters. Since Hermione and Ron have a complex relationship, his actions or words could be the reason for her storming out. Also, the Weasley family as a whole could be important characters. Mrs. Weasley, for instance, with her motherly but sometimes overbearing nature, might play a role in the events that lead to Hermione's departure.
Well, Ron and Harry would most likely be main characters. They're Hermione's best friends, so they'd be right there by her side when she breaks her leg. They'd probably be the ones helping her get to the hospital wing, getting her books for her when she can't walk to the library, and generally just being there for her.
One main character could be an older street - wise kid named Tom. He takes Hermione under his wing when she first arrives on the streets. He teaches her the ropes of surviving, like where to find the best hiding places and which people to avoid. Another character could be a kind - hearted shopkeeper, Mrs. Jenkins. Even though she knows Hermione is living on the streets, she sometimes gives her leftover food or old clothes. There could also be a mysterious figure, a wizard in disguise perhaps, who has been secretly watching Hermione. He senses her latent magical abilities and is waiting for the right time to reveal himself and offer her a way out of her difficult situation.
Well, Harry and Ron would most likely be main characters. They are Hermione's closest friends in the Harry Potter universe, and in this fanfiction, they would probably play important roles in supporting Hermione through her maledictus situation. Maybe Harry would use his courage and Gryffindor spirit to stand by her side no matter what, and Ron would provide some comic relief while also being a loyal friend.
Another character could be a new teacher or a visiting wizard. This person might recognize Hermione's potential even more than the others and offer to mentor her. They could introduce her to new areas of magic and help her develop her skills further.
Another possible main character could be Draco Malfoy. Given his Slytherin background and the connection between Slytherin and Parselmouths, there could be some interesting interactions between him and Hermione. Maybe they start to understand each other better through their shared connection to Parseltongue.