She could become more confident in her new identity. Starting as Harry from a different world, she'd have to adapt to being a ninja and Naruto's sister. This new role would force her to step out of her comfort zone and grow. For example, she might have to learn physical combat skills which she didn't rely on as much in the wizarding world.
Well, the plot could involve her adapting to the ninja world. Maybe she'd bring some of her magic knowledge from the Harry Potter universe, like using spells in a new way to mimic ninja techniques. She could also have a special bond with Naruto, being his sister, and help him in his journey to become Hokage, like using her intelligence to outwit enemies.
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.
Her character might start off a bit confused. Being in a new world as Naruto's sister, she has to adapt. She could develop a strong sense of loyalty to the Hidden Leaf village like Naruto. And as she grows, she might become more confident in using her magic in this new environment. Maybe she starts off being a bit shy about it but then realizes it can be a great asset.
The plot could involve fem Harry trying to keep her identity as Naruto's sister a secret in the wizarding world. She could be on a journey to find out more about her family connection to Naruto. Along the way, she might face challenges from both the magical and ninja communities. She could also meet characters from both universes and have to navigate their different cultures and expectations.
One possible scenario in this fanfiction could be that Naruto's transformation into a fox gives him new abilities related to the Kyuubi's powers. He might be able to communicate with the Fem Kyuubi on a deeper level, leading to an interesting dynamic between them. For example, they could team up to protect the Hidden Leaf Village in a more efficient way, using their combined fox - like skills.
She could also inherit Kaguya's sense of isolation. Kaguya was alone for a long time, and if Fem Naruto becomes like her, she might start to distance herself from her friends and loved ones. On the other hand, she might use her new powers to protect them in ways she couldn't before, but at the cost of her own emotional well - being.
Well, in this fanfiction, Harry as Naruto's sister could bring a whole new dynamic. Since Harry has a strong sense of justice from his own story, she would likely encourage Naruto to pursue his dreams of becoming Hokage even more fervently. Also, she might befriend Sasuke early on, using her understanding of lonely and troubled souls from her own past. And her presence could change the way some of the village elders view Naruto, as they might see her as a potential asset to the village.
The characters from Harry Potter and Naruto would interact in interesting ways. For instance, Hermione might be fascinated by the ninja techniques and try to study them. Naruto, as her brother, would be very protective of fem Harry. He would introduce her to his friends like Sasuke and Sakura, and there could be some initial misunderstandings because of the different cultures.
One common theme is the clash and fusion of the two different worlds. Harry's magical world and Naruto's ninja world collide, and it's interesting to see how they interact. Another theme is family. Since she's Naruto's sister, stories often explore their family bond, how she protects him and helps him grow.