There could also be other characters from the Hogwarts faculty. Dumbledore, for instance, might notice the changes in Hermione and try to guide her in this new phase. Snape might be even more suspicious of her, which could lead to some tense moments. So, the Hogwarts teachers can play important roles in the fanfiction.
One possible plotline could be about how the author's own experiences and traits are transferred to Hermione in a magical way. Maybe the story explores how Hermione deals with situations differently because of these new aspects. For example, she might use a unique approach to solving Hogwarts' mysteries.
It might be that in this fanfiction, the author has created a scenario where the character had a special bond with Hermione in the past. It could involve things like shared secrets, adventures, or a deep emotional connection that has since changed for various reasons. For example, perhaps there was a misunderstanding or an external event that drove them apart.
You can start by looking on fanfiction websites like Archive of Our Own or Fanfiction.net. Just type 'Hermione' in the search bar and then filter through the results to find the ones related to 'used to' scenarios.
One popular Hermione used to fanfiction is 'Hermione's Time - Turned Tales'. It delves into alternate timelines where Hermione makes different choices. Another is 'Hermione: The Forgotten Years' which focuses on her earlier life before Hogwarts in a really creative way. There's also 'Hermione's Hidden Journeys' that has some great character development.
It might be an original character created by the fanfiction writer. This character could have been inserted into the Harry Potter universe and had a unique encounter with Hermione that led to her being 'theirs' in some sense, whether it was through a magical bond or a shared mission that made them inseparable for a time.
They could be used as a plot device to limit Hermione's magic. For example, if the handcuffs and shackles are made of a special metal that dampens magic, it adds an extra layer of difficulty for her to escape.
One common plot device is the use of mind control or dark magic spells on Hermione. This forces her into the slave role. Another is the idea of Bellatrix using Hermione to get to Harry or the other members of the Order. Sometimes, there's a focus on Hermione's inner strength as she tries to break free from the slavery, which is also a plot device to create tension and drama.
One common plot device is the 'what - if' scenario. For example, what if Hermione had been the one to save Harry from the Dementors instead of his father's Patronus? This can lead to a deeper emotional connection between them. Another is the 'arranged - relationship' plot, where they are forced to pretend to be in a relationship for some magical reason, but end up falling in love for real. Also, the 'jealousy' plot device, where they get jealous of each other's relationships with other characters and realize their true feelings.
If you find that Hermione Snape fanfiction is becoming a distraction or something you no longer enjoy, you might try replacing it with other types of Harry Potter fanfiction or different reading materials altogether. Maybe focus on stories that are more in line with the original canon relationships. Another thing you could do is limit your access to platforms where you usually find such fanfiction. For example, if you use a particular fanfiction website, avoid going to the section dedicated to Hermione Snape stories.