Who could Naruto's brother be in 'naruto meets his brother fanfic'?

Perhaps Naruto's brother could be a long - lost relative from a far - flung part of the ninja world. He could have been separated from Naruto when they were young due to a war or some political intrigue in the ninja clans.

In the 'naruto meets his brother fanfic', it's possible that the brother has a different view of the ninja world compared to Naruto. This could lead to some interesting debates between them. The brother might be more cynical or have a darker past that Naruto has to come to terms with. There could also be a rivalry at first, but as they get to know each other better, they form a strong bond. Maybe the brother has some special abilities that Naruto has never seen before, and Naruto is eager to master those abilities as well.

It could be an unknown brother that was kept secret all this time. Maybe he was hidden away by some enemy of the village and trained to be a powerful adversary for Naruto.

In this kind of fanfiction, Naruto might have an emotional reunion with his brother. Maybe they would exchange stories about their pasts, and his brother could share some family secrets that Naruto never knew.

Another possibility is that he could be the brother of Weiss. Weiss comes from a wealthy and proper family. Naruto's more free - spirited and unorthodox ways would clash with Weiss's upbringing at first, but they could grow to understand and support each other as the story progresses.

One possible reason could be jealousy. Maybe his brother has some special abilities or gets more attention that Naruto feels he should have. For example, if his brother is really good at a certain jutsu and is always praised for it while Naruto struggles, that could lead to resentment.

Obviously, Naruto and Sona's brother would be the main characters. Naruto with his energetic and determined personality, always ready to take on any challenge. And Sona's brother, who could have his own unique traits, maybe he's more reserved but very intelligent.

The plot could involve Naruto being introduced to the world of High School DxD. He might use his ninja skills and chakra in that world full of devils, angels and fallen angels. Ravel could be trying to help Naruto adjust to this new world while Naruto protects her with his combat abilities. There could also be a plot where they discover their shared heritage which could be something created by the fanfic author, like a long - lost family connection between the ninja clans and the devil families.

It could be a comical take in the fanfic as well. Maybe a crazy inventor or a bumbling wizard accidentally casts a spell that merges the two worlds in a strange way, making Sephiroth Naruto's brother. This would lead to hilarious situations like Sephiroth trying to understand Naruto's love for ramen or Naruto being baffled by Sephiroth's long, flowing hair and his rather dark and brooding personality.

The half - brother could be developed as a character with a troubled past. He might have been ostracized in his own community because of his relation to Naruto or his own unique abilities. This could make him initially cold and distant but as he interacts with Naruto, he could gradually open up and become more warm - hearted.