Well, first of all, Naruto would seem more intimidating. The sword is a large and menacing weapon, and seeing Naruto with it would change how others perceive him. In terms of his character, he would have to learn discipline. Using a sword isn't as easy as just throwing a Rasengan. He would need to practice and train with the sword constantly. This would instill in him a sense of dedication and focus that he might not have had as much before. He would also start to see the ninja world from a different perspective, as the sword has a history and a reputation in the ninja world, and he would be associated with that now.
It would make Naruto more versatile. He's always been known for his straightforward and energetic fighting style with his ninjutsu. Having a sword like Kisame's would add a more serious and perhaps a bit of a dark edge to his character. He would have to be more calculated in his attacks, as a sword requires different combat tactics compared to his usual jutsus.
Naruto's character could change in several ways if trained by Kisame in fanfiction. Firstly, his confidence might take on a different form. Instead of the boisterous and sometimes over - the - top confidence he has, it could become a more subdued and internalized self - assurance. His relationships with his friends in Konoha might also be affected. He might feel a bit of an outsider now that he has been trained by an enemy. Emotionally, he could become more guarded, as Kisame is not one to show much emotion. And in terms of his fighting style, he might adopt a more stealthy and patient approach, which is very different from his usual in - your - face style.
The plot could involve Naruto getting the sword as a gift from an unexpected source. With Kisame's sword in his possession, Naruto becomes a target for many who either want the sword for themselves or fear the power it could give Naruto. Naruto then has to protect the sword while also trying to master it. He might seek out old sword - masters in the ninja world to train him. Along the way, he could face off against enemies who are also after the sword, and his friends might be in danger because of it.
Naruto's character might become more calculating. Kisame is a very strategic fighter, and Naruto could pick up on this trait. He would start to think more before acting in battles.
It could make Naruto more cautious. Since the Ichibi is a powerful and somewhat unpredictable force, Naruto would need to be more careful in his actions. He might think twice before jumping into a fight, as he has to consider the well - being of the Ichibi as well.
He would probably add more slashing and thrusting motions to his attacks. Instead of relying solely on his shadow clones and rasengan, he could use the sword for close - range combat and combine it with his ninjutsu. For example, he could channel chakra through the sword to create a more powerful slash or use it to deflect incoming attacks more effectively.
Well, in some fanfictions, Naruto might defeat Kisame in a battle and take the sword as a trophy. Maybe he uses his newfound Sage Mode powers or some other advanced jutsu to overpower Kisame and claim the sword.
His relationship with Sasuke would become extremely complex. Sasuke might see Naruto as a reminder of Itachi, which could stir up a mix of emotions like anger, envy, and also a strange sense of kinship. Naruto, on the other hand, might try to use Itachi's power to understand Sasuke better, but this could be misinterpreted by Sasuke as Naruto trying to take on the role of Itachi in his life. With his friends like Sakura and Kakashi, they might be initially wary of Naruto's new power. Sakura might worry that Naruto is losing himself to Itachi's power, while Kakashi would be more cautious and observant, trying to guide Naruto to use the power in a positive way.
It would make him more confident. Having a powerful sword gives him an extra edge in battles. He would no longer rely solely on his ninjutsu and shadow clones. This new weapon would add a new dimension to his fighting style, making him more versatile.
Naruto would become more confident, not just in his abilities but also in his decision - making. Having the Infinity Gauntlet gives him an edge that no one else has. He might become a bit more reserved as he has to be careful with the power he wields. He can't just rush into things like he used to.
If Naruto has wings, his hair might seem to flow more gracefully in the wind as he flies. His eyes could glow a different color when he uses the power associated with the wings. Also, the wings themselves could be unique. They might be made of some kind of chakra - like substance, giving them a shiny or translucent look. And there could be markings on the wings that are related to his Uzumaki heritage or some new power he has acquired.