RWBY Blake has Naruto as a brother fanfic: How would their relationship affect the other characters?

Maybe the plot could revolve around their combined combat styles. Naruto is known for his flashy and powerful ninjutsu, while Blake has her unique swordsmanship and shadow clones in RWBY. They could develop new fighting techniques together, like Naruto teaching Blake some of his chakra - based moves and Blake showing Naruto how to better use stealth in combat.

Ruby would be deeply saddened. She might blame herself for not being able to protect Blake. Weiss would probably be in shock at first, then become more determined to fight against whatever caused Blake's death. Yang would be furious and seek revenge. She has a very close bond with Blake, and her death would likely fuel Yang's anger towards the enemy.

On the positive side, if Ruby's dark twin brother were to eventually turn good, it could strengthen Team RWBY. He could bring in new skills and perspectives. For instance, he might have a different combat style that he could teach the others. However, if he remains dark, it could be a constant source of danger for the team. He might try to use Ruby's connection to the team to gain access to information or resources that he could use for his own dark purposes, putting the entire team at risk.

The relationship would have a major impact on Naruto's character development. Knowing he has an Uchiha brother, he might study more about the Uchiha ways and culture. This could lead to new jutsu combinations, like combining his Rasengan with some Uchiha - style fire jutsu. Emotionally, it would give him a stronger family bond, which was something he always desired. In the overall Naruto universe, this could inspire other characters to look beyond clan differences and strive for unity, as Naruto and Shisui's relationship would be a symbol of bridging gaps between different groups.

For the other shinobi in the Hidden Leaf Village, Gaara's protectiveness towards Naruto could change their perception of Gaara. They might start to trust him more and see him as an ally rather than just a former enemy. This could lead to more cooperation between the Sand Village and the Leaf Village. For the younger generation of shinobi, like Boruto and his friends, they could look up to Gaara as an example of loyalty and brotherhood. Gaara's actions towards Naruto could inspire them to be more protective of their own friends and comrades.

Well, Sasuke would probably be very suspicious at first. He's always been a bit guarded around Naruto, and now with Menma in the picture, he might see it as a threat. But as he sees how Naruto and Menma's relationship develops, he could learn a lot about brotherhood himself. Sakura might be more open - minded. She could see the potential in their bond and try to encourage them to use it for good. Kakashi, on the other hand, would be very observant. He'd be watching to see how this new dynamic affects Naruto's growth and the overall balance in the village.

Their relationship might make Sasuke a bit jealous at first. Since Sasuke has his own complex relationship with both Naruto and Sakura. But eventually, he could come to accept it. For their other friends like Kakashi, he would probably be supportive and give them some relationship advice based on his own experiences. Shikamaru might find it a bit of a nuisance at first, thinking it could disrupt the team dynamics, but then see how happy they are and be okay with it.

For Hinata, she might be disappointed as she had feelings for Naruto. But she would also be kind and respectful of Naruto's choice. Kiba could be teasing Naruto about his relationship with Ino, while also being a bit protective of Ino as a friend. Choji would be happy for Ino, but might also be worried that Naruto's dangerous ninja life could put Ino in harm's way. And the village elders might view this relationship as a potential political alliance, depending on Ino's family status.

The relationship could also have an impact on the political situation in Konoha. If Naruto and Tenten are siblings, it could change the balance of power among the ninja clans. Their combined influence could be used to bring about new policies or changes in the village. For example, they might advocate for more training opportunities for orphaned ninja, given Naruto's own experience as an orphan.

It would greatly affect her relationship with Emerald and Mercury. They might be confused as to why Cinder is so interested in Pyrrha. Emerald could feel jealous, thinking that Cinder is replacing her with Pyrrha in some way. Mercury, on the other hand, might just be indifferent or find it strange.