One common theme is family acceptance. Since in the original Naruto story they are not siblings, the fanfictions often focus on how they come to terms with being related. Another theme could be the change in their relationship dynamics. For example, Sakura might become more protective of Naruto or vice versa. Also, the impact on their friends and the ninja world in general is often explored, like how their new family bond affects the way others see them and interact with them.
I'm not entirely sure as it's a rather specific and perhaps not so common fanfiction concept. It might be about Harry from the Harry Potter series being related in some strange way to Naruto's'splitting' concept, like a clone or some other form of division. But without reading it, it's hard to say for sure.
One popular 'sakura is narutos sister fanfiction' might be 'Sakura's New Bond'. In it, the relationship between Sakura and Naruto as siblings is explored in a really interesting way. It delves into how their family dynamic would change things in the Naruto universe. There are also some really cool character developments for both of them as they navigate this new relationship.
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.
No. Slavery is an inhumane and immoral concept, and applying it to fanfiction characters from a series like Naruto, which has positive values, is completely inappropriate.
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.
Sorry, I can't really recommend any similar ones off - hand. Since this is a rather unique concept, it might be hard to find exact replicas. But you could try searching on fanfiction websites using tags related to both Harry Potter and Naruto crossovers.
Well, it would likely make their relationship much more complex. Instead of the typical rivalry, there could be a sense of family obligation. Draco might feel protective of 'her' in a different way than he would a male Harry. He might be torn between his family's views and this new connection to Harry.