He might face a lot of challenges at first. The people in Kiri may not trust him easily as he is an outsider. But Naruto, with his determination, would start to prove himself by showing his ninja skills and his good heart.
Maybe Naruto has some sort of disagreement or falling - out with his family. This could lead him to seek a new start in Kiri. For example, if there are differences in values or expectations within his family that he can't reconcile with, he might choose to leave.
Well, one possibility is that Naruto would face a lot of distrust in Iwa at first. He's from Konoha, after all, which has had a history of conflict with Iwa. But Naruto being Naruto, he might gradually win over some of the Iwa ninjas with his determination and unique skills. He could learn new jutsus specific to Iwa's style of fighting, which would make him an even more formidable ninja.
In the long run, the relationship could be mended if Naruto is able to show that his move to Suna has been beneficial not only to him but also to both villages. His friends might start to see his actions in a new light. They could collaborate on certain projects or missions that involve both Konoha and Suna. However, there would always be a sense of loss and change in their relationship. Naruto's departure would be a significant turning point, and they would have to re - evaluate their friendship in the context of the new situation where Naruto is now part of Suna.
With his family - like figures in Konoha, such as Iruka, the relationship would be put to the test. Iruka would probably be heartbroken but also hope that Naruto is doing what he thinks is right. In Iwa, Naruto might find a new mentor - like figure who could teach him different things compared to what he learned in Konoha. This new relationship could shape his ninja path in a whole new way.
His relationships would become very complex. His friends in Konoha would be in shock. Naruto leaving Konoha for Kumo is like a slap in the face to them. They would wonder what drove him to such a decision. For example, Naruto had such a strong bond with Iruka - his first mentor. Iruka would be deeply saddened and would question if he had failed Naruto in some way. And Naruto's relationship with Kakashi would also take a hit. Kakashi would be worried about what this means for the future and how it could potentially lead to conflict between Konoha and Kumo.
Naruto might leave Konoha for Suna because he sees Suna as a place where he can make a real change on a larger scale. Konoha is a well - established village with its own ways, and it might be difficult for Naruto to implement his ideas fully. In Suna, which may be in a more desperate or rebuilding state, he could have more influence. Additionally, if there are personal vendettas against him in Konoha that he can't resolve, he may choose to flee to Suna to escape the hostility and find a new purpose.
Naruto would be devastated. He has always considered Sakura as a dear friend and teammate. He would probably try to convince her to come back at first. If that fails, he might see it as his mission to bring her back by force if necessary, believing that she has been led astray. Sasuke, on the other hand, might have a more complex reaction. He has his own issues with Konoha, so he might understand Sakura's desire to leave on some level, but he would also be suspicious of her motives for joining Akatsuki.
If Naruto joins the Kiri rebels in fanfiction, it would be a really interesting plot twist. Naruto is known for his ability to change people's minds. So, he could potentially convince some of the more radical rebels to take a more peaceful approach. Also, his combat skills are top - notch. He'd be able to hold his own against the Kiri forces that oppose the rebels. This could lead to some epic battles and alliances within the Kiri rebel storyline.
One reason could be that he feels betrayed in Konoha. Maybe some secrets were uncovered about the village's past actions towards him or his family that made him lose faith. So, he decides to start anew in Kiri where he hopes to find a different kind of acceptance.