There are some really interesting fanfictions on this concept. One I remember had Hermione growing up with a unique blend of Remus' calm wisdom and Sirius' rebellious spirit. It was fascinating to see how she navigated Hogwarts with that background.
I've read a fanfic where Hermione being their daughter changed the whole dynamic of the story. For instance, her relationship with Harry and Ron took on new dimensions as she had this different heritage. It added a lot of depth to her character.
In the realm of fanfiction, the idea of Hermione being Sirius and Remus' daughter might stem from a desire to explore different family dynamics. It could start with a time - traveling incident where the past is altered. Sirius and Remus might have found a way to ensure Hermione's existence in a different timeline. This would completely change the relationships in the Harry Potter universe and open up new storylines for the author to explore, like how Hermione would grow up with two very different fathers, one a werewolf and the other an escaped convict in the eyes of the wizarding world.
A new storyline might involve Hermione exploring the secrets of her fathers. She could learn about Sirius' family secrets and Remus' experiences as a werewolf in a more personal way. This could lead to her finding new ways to fight against dark magic, as she combines the Gryffindor courage from Sirius and the Ravenclaw wisdom from Remus. It could also create a lot of drama as she tries to balance her old life with this new revelation of her parentage.
Well, in a fanfiction, anything can be made possible. Maybe it could be through some sort of magic gone awry. For example, a spell that was meant to protect Hermione's real parents ended up warping reality and making her seem like Remus and Sirius' daughter. Another idea could be that some dark wizard had a plan to manipulate their genes or magical essence in some way to create this new family connection.
Hermione could become more attuned to the darker aspects of magic. With Remus being a werewolf and Sirius having his own dark family history, she might explore the gray areas of magic more. For example, she could study more about the dark arts not to practice them, but to understand how to better defend against them. This would be a significant shift from her canon character who mostly stuck to the 'light' side of magic study.
A major element is her self - discovery. Growing up knowing she was the daughter of Remus and Sirius, she'd constantly be exploring who she was. There could be a lot of internal conflict as she tries to reconcile the different parts of her heritage. And her interactions with Dumbledore would also be interesting, as he knew both Remus and Sirius well.
Typically, in such fanfiction, there would be a complex relationship dynamic. Sirius and Remus, who are from an older generation in the Harry Potter world, would have an interesting connection with Hermione. There might be elements of mentorship mixed with unexpected emotional bonds.
One great Hermione, Remus and Sirius fanfiction is 'The Unlikely Trio'. It explores their unique relationships and how they work together in a post - Voldemort world. The characterizations are really well - done, making it a very engaging read.
One great Hermione, Sirius and Remus fanfiction is 'The Marauders' Legacy'. It beautifully weaves their characters together in an adventure set in Hogwarts. It shows Hermione's intelligence interacting with Sirius's wild side and Remus's calm wisdom.
There are likely fanfictions out there with such a plot, but it's not part of the original 'Harry Potter' canon. Fanfiction often explores alternative relationships and scenarios that deviate from the official story. However, this particular concept might be controversial among some fans who prefer to stick to the more traditional character pairings and storylines in the original series.
There is a fanfiction titled 'Under Sirius' Watch'. In it, Sirius catches Harry and Draco sneaking around the castle at night. This leads to a series of events where Sirius has to decide whether to report them or try to understand what's really going on between the two. The story delves deep into the characters' emotions and the complex relationships within the Hogwarts world.