She'd likely have a more magical - centric upbringing. Growing up with the Potters, she'd be surrounded by more magical knowledge and artifacts. She might have an easier time getting into Hogwarts and be more confident in her magical abilities from the start.
It would completely shift the story. Hermione being adopted by the Potters means she'd grow up in a different environment. Instead of her muggle - born family situation, she'd be part of a pure - blood or half - blood family. This could change her self - confidence levels as she might not face the same prejudices she did as a muggle - born. It also might make her relationship with Ron different as she'd be more closely associated with Harry from the start.
In this fanfiction, apart from Voldemort, there could be some dark wizards who are working independently but have the same goal of seeing the Potters dead. They might be jealous of the Potters' popularity or have some old grudges. These dark wizards could be in league with Voldemort or acting on their own, and they would be a big obstacle for Hermione as she tries to save the Potters.
Well, it could be that Hermione uses her time - turning device to go back in time and warn the Potters about Voldemort's plan. Maybe she disguises herself and manages to get into their hiding place, then uses her magic skills to set up powerful protective spells around them that Voldemort can't break through.
One possibility could be that Sirius sees Hermione's intelligence and determination and decides to take her under his wing. Maybe he realizes her potential and wants to protect her from the dangers in the wizarding world that he has faced himself.
One great 'Adopted Hermione' fanfiction is 'A New Family for Hermione'. It beautifully portrays Hermione being adopted into a loving magical family. The story delves into how she adjusts to this new family dynamic while still maintaining her strong, independent character. It also shows how her new family helps her grow in different ways, especially in terms of her magical abilities outside of Hogwarts studies.
Well, in general, fanfiction about an adopted and abused Hermione is a rather dark concept. Ethically, it's a gray area. On one hand, fanfiction allows for creative exploration, but this theme might be disturbing to many. It could be seen as unethical if it promotes or glorifies abuse in any way.
One possibility could be that in the fanfiction, Hermione is adopted by Professor McGonagall. McGonagall, being strict yet kind - hearted, would see Hermione's potential and take her under her wing. She could offer Hermione a more stable and nurturing environment within Hogwarts, away from any potential problems in her regular life. This might also lead to Hermione having an even deeper understanding of Transfiguration as she would get more one - on - one time with McGonagall.
Well, power dynamics can be a theme too. If she's adopted into a powerful wizarding family, there could be issues of how she navigates the power hierarchy within the family. Some fics also have the theme of redemption. Maybe the family that adopts her has a troubled past, and through Hermione's presence, they start to change for the better. And of course, friendship still plays a role as Hermione tries to balance her new family life with her relationships with Harry and Ron.
One interesting Hermione - was - adopted fanfiction is 'A New Beginning for Hermione'. It shows how Hermione's life changes after being adopted into a different magical family. The story delves deep into her character development as she tries to adapt to new surroundings and family dynamics while still being the brilliant witch we know.