Another interesting point could be how Hermione deals with her academic pursuits during puberty. Her changing body and emotions could potentially be a distraction, but her strong will and love for learning might help her overcome these challenges. She could also find new ways to study that better suit her changing needs.
One interesting plotline could be Naruto struggling to control his newfound emotions during puberty while also dealing with his ninja training. For example, he might find it harder to focus on his jutsu practice because he's constantly distracted by his changing feelings.
The fanfiction might explore Naruto's character development through his relationships. For instance, his interactions with Iruka sensei could change. Iruka might notice Naruto's mood swings and help him navigate through this difficult time, which would contribute to Naruto's growth.
She could meet Bella Swan. They might start off as a bit of an odd couple, with Bella's more reserved nature compared to Hermione's boldness. But they could learn a lot from each other.
Hermione might also come across some magical creatures that are guarding certain vaults in Gringotts. For example, a dragon that she has to find a way to bypass without getting burned. These encounters would add more excitement and danger to her visit to the wizarding bank.
We can expect to see a more vulnerable side of Hermione. Puberty often brings insecurities, and she may struggle with self - esteem issues, especially considering she is a bright witch in a world that values intelligence but also has its own standards of beauty.
Girl puberty stories can make other girls feel less alone. When they read or hear about similar experiences, they know that what they are going through is normal.
She could meet the headmistress of St Trinians. That would be an interesting encounter as Hermione tries to understand the school's rules and the headmistress tries to figure out this strange, book - smart girl. Also, she might meet the troublemakers of the school, those girls who are always getting into scrapes and might see Hermione as either a threat or someone to rope into their schemes.
Perhaps she'll meet older, more experienced students who can act as mentors. These students could introduce her to secrets of the new school that are not easily accessible to newcomers. They might also help her with any homesickness she has for Hogwarts.
One of her friends could be a girl who is also interested in Muggle Studies, which is not really a popular subject in Durmstrang. They meet in the library while looking for books on the topic and start sharing their views on the Muggle world and magic. Also, there might be a young wizard who is against the more aggressive and dark - leaning teachings of Durmstrang and sees Hermione as an ally in changing the school's culture.