It could be really interesting. Maybe Naruto would grow up with a different kind of family dynamic. He might be more involved in Uzumaki clan affairs from the start. His relationship with Jiraiya could also be different as his connection to the prophecy might be re - evaluated. And his rivalry with Sasuke could take on a whole new meaning, perhaps related more to clan differences rather than just personal strength.
Yes, there are likely some fanfictions out there with this premise. Fanfiction often takes creative liberties with the original Naruto story. Writers might explore how this relationship would change the story's dynamics, character interactions, and plotlines. It could lead to very different character development for Naruto and how he is related to other characters in the Naruto universe.
A plot twist could be that Naruto, being Kushina's brother, has a different mentor. Instead of Jiraiya, he could be trained by an older Uzumaki clan member who has unique abilities. This would shape his fighting style and ninja skills in a whole new way. Also, his relationships with his peers would be different. For example, Sasuke might see him as more of a threat since he has a stronger connection to the Uzumaki clan, which was known for its powerful ninjas. This could lead to more intense rivalries and battles between them.
The plot could involve them discovering their brotherhood. Maybe they were separated at birth for some reason. As they figure out their relationship, they start to rely on each other more. Naruto might drag Shikamaru into more of his adventurous ideas, while Shikamaru tries to keep Naruto out of trouble with his intelligence.
Well, it could be a really strange plot. Maybe it involves some sort of time - travel or alternate universe where Naruto has to take on the role of Kushina's sensei in a very different ninja world setting, and the kiss could be a symbol of some deep - seated connection or a way to transfer power. But this is all just speculation as I haven't actually read such a fanfiction.
He might learn about his family history. Kushina could have written about her Uzumaki clan heritage, which Naruto may not know much about. Also, he could find out about his parents' relationship, like how they fell in love.
Well, if Naruto were Kushina's older brother, the whole story of Naruto would be turned on its head. The story would start with Naruto already having a family connection to the Uzumaki clan. His training and development would likely be different as he would have grown up with Kushina. He might have learned some unique Uzumaki techniques from their family. His relationship with the other characters would also change. For instance, his relationship with Jiraiya might be different as Jiraiya might also see Naruto in a different light due to his relation to Kushina. And when it comes to the big events in the Naruto universe, Naruto would be in a position to directly influence Kushina's actions, which could change the course of many events.
If Naruto was the older brother of Kushina, it would rewrite a lot of the backstory. For one, Naruto might be the one to introduce Kushina to Minato. He could see Minato's potential and think he would be a good match for his sister. Also, Naruto's skills and abilities could have a different origin. Maybe he learned some things from Kushina or their family that were unique. This would change his fight scenes and how he approaches challenges in the fanfiction. He might also have a different relationship with the Uzumaki clan as a whole, having more of a family - based influence within it.
If Naruto was Kushina's brother, his relationship with other Uzumaki survivors would likely be more immediate and involved. He would probably be more aware of the Uzumaki clan's history and traditions. He could be seen as a sort of leader or at least a central figure among them. There might be more of an expectation for him to uphold the Uzumaki name and help in the revival of the clan.
In such a fanfiction, the plot could revolve around their shared heritage. They could be the key to uniting the magical and mythological realms. Their personalities, which are quite different, would create an interesting dynamic. Percy is more of a hands - on, action - oriented hero, while Harry is often more introspective. This contrast could lead to some great character development as they learn from each other. The fanfiction could also include other characters from both series, like Hermione helping Percy with his studies at Hogwarts (in a way that accommodates his different learning style as a demigod), or Ron being amazed by Percy's demigod powers.
Well, it could be really interesting. Naruto's energetic and determined personality combined with Orihime's kind and sometimes shy nature would make for some great character dynamics. Maybe Naruto, as Orihime's brother, would be very protective of her. He could use his ninja skills to keep her safe in the Bleach universe, which is full of Hollows and other dangerous beings.