Well, it could change a great deal. For one, Hermione might have more access to inside knowledge about Hogwarts. McGonagall could be more protective of her, which might lead to different situations where Hermione is involved. For example, in dangerous situations, McGonagall might be more likely to step in directly to protect Hermione, rather than just as a teacher protecting a student.
If Hermione were McGonagall's daughter in fanfiction, it would likely mean Hermione has a different family background. This could influence her relationship with other characters. Maybe she'd be more respected by some Slytherins who are afraid of McGonagall. Also, it could change the way she approaches her studies. Since McGonagall is strict about academics, Hermione might feel even more pressure to excel, or she could get special tutoring from her'mom' that gives her an edge in magic that she didn't have in the original story.
Well, if Hermione were Sirius's daughter in fanfiction, it would change a lot. For one, Hermione might have had a very different upbringing. She could have grown up with more knowledge about the wizarding world's secrets from Sirius. And in the Hogwarts years, her relationship with Harry and Ron might have been more complex. Maybe she would have been more involved in the Order of the Phoenix affairs earlier. Also, her magical abilities might have been influenced in different ways, as Sirius was from an old and powerful wizarding family.
Well, it could change a great deal. For one, Hermione might have had access to more knowledge and magic earlier. Minerva could have secretly trained her, giving her an edge in her studies. This could also change her relationship with Harry and Ron. Maybe she would be more cautious about getting into dangerous situations as she wouldn't want to disappoint her mother.
Hermione's status at Hogwarts might change. She could have more privileges or face different expectations. For example, McGonagall might be more protective of her, which could lead to different interactions with other students and teachers.
If Hermione were Sirius's twin sister in fanfiction, it would mean a major shift in her character arc. Firstly, her appearance might be different as she would likely inherit some Black family traits. Her magical abilities could also be influenced. In the original story, Hermione was always an over - achiever, but with the Black family connection, she might have had a different approach to magic. Maybe she would be more confident in her natural abilities rather than relying so much on study. In the fight against Voldemort, she could have used her family's resources and connections. For example, she might have known about secret Black family spells or artifacts that could have been useful. Her relationship with Snape would also be very different. Since Snape had a history with the Black family, he might have treated her with more respect or more animosity, depending on how the story was written.
Well, in fanfiction, the author has the freedom to twist the original story. For McGonagall to be Hermione's mother, perhaps there was a powerful charm placed on Hermione as a baby to hide her true parentage. And McGonagall, being a powerful witch, had reasons to keep this a secret, like protecting Hermione from some dark forces that were after her because of her heritage.
Well, if Hermione was Draco's little sister in fanfiction, it would completely turn the story on its head. For one, the Gryffindor - Slytherin dynamic would be super messed up. Hermione, being a know - it - all Gryffindor, and Draco, the snobbish Slytherin, their relationship would be full of internal conflict. Instead of being enemies, they'd have a family connection. This could lead to some really interesting scenarios where Hermione might be torn between her Gryffindor friends and her Slytherin family. Also, Draco might have to protect Hermione from the more evil Slytherins like Bellatrix, which would be a strange role - reversal. And it could change the way the whole wizarding world views blood purity because Hermione, as a Muggle - born, being related to a pure - blood Malfoy would shatter some long - held beliefs.
She becomes more nurturing. Usually, she's known for her strictness at Hogwarts, but when she adopts Harry, she softens up. For instance, she might show more patience when Harry makes mistakes in his magic studies.
Well, if Hermione was Lucius' daughter, it would completely turn the story upside down. First, Hermione's loyalty to the Order of the Phoenix would be in question. She might have been raised with pure - blood supremacist ideals which would make her relationship with Harry and Ron very different. Instead of being friends, they could be enemies at first. Also, her academic achievements at Hogwarts might have been used for more sinister purposes by Lucius. He could have used her intelligence to further the Death Eaters' goals, like finding ways to infiltrate Hogwarts more easily or uncovering secrets of the Order.
It could change her appearance, making her look more mature. For instance, she might have to adjust her clothing style to fit her taller frame.
McGonagall often serves as a mother - like figure in fanfiction. She might comfort Harry when he's facing difficulties with Voldemort or other challenges at Hogwarts. Her influence is seen in how Harry approaches problems. He learns from her to think calmly and use his wits, rather than just relying on his Gryffindor bravado. This helps him make better decisions and grow into a more well - rounded wizard.