Well, it would be really strange since Naruto and Bulma are from different anime universes. But if in this fanfiction, it could mean Naruto would grow up in a more technologically advanced world. He might use his ninja skills in combination with Bulma's inventions. For example, he could use his shadow clone jutsu to help Bulma in her lab, multiplying himself to do different tasks at once.
If Naruto were Bulma's brother, their personalities would create an interesting dynamic. Naruto is energetic and impulsive, while Bulma is smart and often bossy. Naruto would probably be constantly getting into trouble and Bulma would have to bail him out. Also, Naruto's chakra powers could potentially be harnessed by Bulma for some new kind of energy source in her inventions.
A fanfiction with Naruto as Daenerys' brother could have a very interesting plot. Since Naruto grew up without his parents and Daenerys also had a difficult childhood, they could bond over their shared experiences. Naruto could bring his unique sense of humor to the rather serious world of Westeros. His ability to make friends easily might also help Daenerys form more alliances. In terms of battles, Naruto's Rasengan could be used against the White Walkers if the story took that turn. And his relationship with Daenerys could be a complex mix of brotherly love, mutual respect, and a shared goal of bringing peace and justice to their world, whether it's the ninja world or Westeros.
It could be full of action. Naruto would bring his ninja skills to Issei's world. He might train Issei in combat, much like he trained with Sasuke and others. Their relationship could also be full of brotherly banter and support.
In this fanfiction, the plot could center around Naruto's past as an orphan and how it relates to Sirzechs' own experiences. They could bond over their struggles and use their combined powers to bring peace to both their realms. Naruto could introduce concepts like chakra to the Underworld, while Sirzechs could teach Naruto about the politics and magic of his world. Their brotherly relationship would be a key factor in uniting different factions within both worlds.
The plot could involve Naruto and Azula discovering their relation later in life. Naruto, being from a different world, would have to adapt to the Fire Nation's culture. Azula might initially be hostile towards Naruto, seeing him as a threat to her power. However, as they interact more, Naruto's unwavering belief in people's goodness starts to chip away at Azula's cold exterior.
A 'Naruto and Bulma married fanfiction' might start with an out - of - the - blue encounter. Let's say Naruto somehow ends up in the Dragon Ball universe. Bulma, being the curious and intelligent scientist she is, would be interested in Naruto's unique abilities. As they spend more time together, they start to develop feelings. In their married life, Naruto could teach their kids (if they had any) about the importance of hard work and determination in the ninja way, while Bulma would introduce them to the wonders of science and technology.
If Naruto was the older brother of Hashirama, it could completely rewrite the history of the ninja world. Naruto's influence could prevent some of the early tragedies that occurred in the Senju - Uchiha conflict. He might be able to use his charisma and leadership skills to bring the two clans together more smoothly. This would lead to a more stable and peaceful foundation for the Hidden Leaf, and perhaps the entire ninja world would develop differently without the long - standing animosity between the two powerful clans.
In a Naruto - is - Gaara's - older - brother fanfiction, the story could start with Naruto finding out about their relation through some ancient scroll or a prophecy. Naruto would then immediately set out to find Gaara. Once they meet, there could be initial tension as Gaara is used to being alone. But Naruto, with his big - hearted nature, would slowly break down Gaara's walls. He could help Gaara with his sand control by sharing his own experiences with chakra control. They might also face a common enemy that forces them to rely on each other and strengthen their brotherly bond.
It would probably be a wild ride. Naruto's energetic and positive nature combined with Gajeel's more rough - around - the - edges personality would create some interesting dynamics. Maybe they'd team up to fight powerful enemies, using Naruto's Rasengan and Gajeel's Iron Dragon's Roar. It could also explore their family backstory, like how they came to be brothers in this fan - created universe.
A fanfiction like this would likely start by explaining how this relationship was hidden or forgotten. It could then delve into the two characters' shared past. Naruto might have an internal struggle as he tries to reconcile his own values with his new - found family connection to Madara. There could be epic battles where they fight side by side against a common foe, or heart - wrenching moments when they are at odds with each other because of their different approaches to achieving peace in the ninja world. This kind of fanfiction has the potential to rewrite many of the established relationships and story arcs in the Naruto universe.
In such a fanfiction, there could be a whole new set of adventures. Since Harry is from a world of magic and Naruto from a world of chakra, they could find a way to combine their powers. The story might start with the discovery of their relation. Then they could go on a journey to find out more about their family's past and why they were separated. Along the way, they would face many challenges, like enemies from both worlds who don't want to see them united.