Maybe an original character could be created. This sister could be a powerful and wise ninja who has been traveling the world. She comes back to the village just in time to take Naruto under her wing. She could have a special kekkei genkai that she helps Naruto understand and perhaps develop in himself.
She could be a half - blood like Harry. Maybe her mother was a muggle - born witch and her father was a pure - blood wizard. This mixed heritage could give her a unique perspective on the wizarding world's issues regarding blood purity.
In a 'naruto raised by older sister fanfiction', the older sister could be very nurturing. She might take Naruto away from the village for a while to train him in seclusion. This way, Naruto can grow stronger without the constant pressure and discrimination in the village. And when they return, Naruto surprises everyone with his newfound skills and confidence.
The sister might have her own group of friends in the wizarding world. When she takes in Harry, she brings him into this circle. They all contribute to his upbringing. For example, one friend could be a potions expert and teach Harry about potions in a fun way. Another could be a great dueler and train Harry in combat magic. His sister coordinates all this, ensuring Harry gets a well - rounded magical education and a loving family environment.
Well, it could be about Kurenai taking on a sisterly role for Naruto. Maybe she helps him train, like teaching him some special genjutsu techniques that she's good at. She could also be there to support him emotionally, especially when he faces difficulties in the village or in his ninja missions.
Their parents' old friends could be main characters. They might come to check on Harry and his sister, bringing gifts and stories about their parents. These friends could offer guidance and protection when needed.
In the fanfiction, Hermione and her older sister could have a complex relationship. Maybe the sister is overprotective, constantly looking out for Hermione at Hogwarts, especially with all the dangerous situations she gets into. The sister could also be a bit jealous of Hermione's academic success and magical abilities, which could lead to some sibling rivalry.
In most Naruto older sister fanfics, Naruto is a central figure. His sister, who often has unique traits and abilities, is another main character. Sometimes, villains from the original Naruto series, like Orochimaru, might also play significant roles as they pose threats to Naruto and his sister. Also, Naruto's friends such as Sakura and Shikamaru can be involved, adding more complexity to the relationships in the fanfic.
She could be involved in the Akatsuki plot in some way. In the fanfiction, she might have been sent on a mission that led her to cross paths with the Akatsuki members. This could create a whole new storyline where Naruto has to rescue his sister from the clutches of the Akatsuki, adding more depth to the Naruto universe.
Sure, there are such fanfictions. When it comes to these types of fan - made stories, they can vary greatly in quality and plot. Some may be well - written with in - depth character development for the OC sister. They might show how she could have influenced Gaara's life growing up, or how she copes with the challenges in the ninja world as a relative of such an important character. It's all about exploring new possibilities within the Naruto universe.
One possible scenario in this fanfiction could be that Harry, with his magical abilities, enters the Naruto universe and is reborn as Naruto's older sister. He could use his magic in unique ways within the ninja world, perhaps using spells to enhance his ninja skills or to protect Naruto from early on. This would bring a whole new dynamic to the Naruto story as the presence of someone with such different powers and a different upbringing would change the way Naruto grows and faces challenges.