His relationship with Sasuke would be very different. With the Sharingan, Naruto would have a new connection to Sasuke's clan. Sasuke might see Naruto in a new light, perhaps as a rival in a different sense. They could have more complex interactions as Naruto tries to understand the Uchiha side of things.
With his friends in Konoha, they might be a bit wary of Naruto at first. The Sharingan is often associated with mystery and power in the Naruto world. But as Naruto shows he can control both the Sharingan and the Kyuubi, they would come to trust him more. His relationship with Kakashi could also deepen as Kakashi has experience with the Sharingan and could mentor Naruto further.
Naruto's relationship with the villagers would also change. Some might fear him more because of the combination of the Sharingan and the Kyuubi. However, Naruto, being Naruto, would likely use his new powers to protect the village and gradually earn their respect and love again. He might also have to deal with those who want to use his new powers for their own gain, which would put a strain on some of his relationships.
In the wider ninja world, his relationship with other villages would change. Some villages might see him as an even greater threat now that he has the Rinnegan, and might try to form alliances against him. However, Naruto being Naruto, he would use his new power to show that he still has the same kind - hearted goals. He would try to use the Rinnegan to bring about peace even more strongly, and over time, win over those who were initially suspicious.
His fighting style would become more versatile. With the Sharingan, he could anticipate his opponents' moves and counter them quickly. The Byakugan would allow him to target his opponents' chakra points more precisely. He might incorporate more long - range attacks, using the Byakugan's enhanced vision to aim from a distance. He could also use genjutsu more effectively with the Sharingan, trapping his enemies in illusions while using the Byakugan to keep an eye on their real - life movements.
Naruto's relationship with his friends in Konoha would also be affected. They might look at him with a new sense of awe and respect. However, some might also worry that the weapon could put Naruto in more danger. For example, Shikamaru might be concerned about the political implications of Naruto having such a powerful item. This could lead to some tension and interesting dynamics within the group of friends.
Naruto's relationships with his friends in Konoha would also shift. They might look up to him more, but at the same time, they could be a bit intimidated by this new power. For example, Shikamaru might be more cautious around Naruto as he tries to figure out how this new power affects Naruto's decision - making. And with his new abilities, Naruto might have to keep some secrets from his friends to protect them, which could strain their relationships a bit.
His friends might be a bit wary of him at first. Since the Shinigami is often associated with death, they could be a bit scared of his new powers. But over time, they would probably come to accept it and see how he uses it for good.
Naruto's fighting style would evolve significantly. He would no longer just rely on his brute strength and the Nine - Tails' chakra. With the Eternal Mangekyou Sharingan, he could use powerful genjutsu and ninjutsu unique to the Sharingan. He might start to use more stealth and precision in his attacks. His training would also change as he has to master the new abilities. He would probably study Uchiha history and techniques more, which would make him more well - rounded as a ninja. This new power would also bring out a more serious side of Naruto, as he now has the responsibility of using such a powerful ability for the good of the village and the ninja world.
Naruto's relationship with his mentor, like Kakashi, would face a big challenge. Kakashi would have to figure out how to train Naruto in this new form. Maybe he'd have to develop new jutsu specifically for Naruto as a fox. Also, Naruto's friends from the village, like Shikamaru and Choji, might treat him more like a pet at first, which Naruto would not be happy about, and this could cause some comical but also tense situations in their relationships.
His relationship with Sasuke would be very different. Since the Sharingan is an Uchiha - related thing, Sasuke might be both jealous and intrigued. They could end up being rivals in a whole new sense, competing to see who can master their respective powers better.
Naruto's confidence would likely increase significantly. Having such a powerful and unique ability would make him feel more capable of protecting his village and friends. He might become a bit more reserved at first, as he tries to understand and master the new power, but eventually, he would use it to be more assertive in battles and in diplomatic situations as well, knowing he has an ace up his sleeve.
Naruto would likely become more introspective. The Rinne Sharingan is a very powerful and somewhat mysterious ability. Having it would force Naruto to understand more about the deeper aspects of chakra and the ninja world. He might become a bit more cautious as he realizes the great power he holds and the potential for it to be misused.