As for Kakashi, he would be in a difficult position. He has mentored Naruto and also has a strong loyalty to Konoha. He might try to understand Naruto's reasons while also having to deal with the village's reaction. Their relationship could become strained as Kakashi tries to balance his duties to the village and his connection with Naruto.
One possible reason could be fear. Naruto has the Nine - Tails within him, and some in Konoha might be too afraid of its power getting out of control. They may not fully trust Naruto to keep it in check.
At first, Naruto is likely to be heartbroken. Konoha has been his home, and he has always longed for acceptance from the villagers. So being abandoned would be a huge blow to him.
Many relationships would be affected. For example, Sasuke's story would take a different turn. He might not have the same motivation to return to Konoha if Naruto is not there. Also, Naruto's other friends like Sakura would be devastated and might set out on a journey to find him. The power dynamics in the ninja world would shift as well, with other villages possibly seeing Konoha as weaker without Naruto.
One possible reason could be that Naruto discovers some dark secrets about the village leadership that go against his values. For example, if he finds out that they have been using underhanded means to maintain power.
One possible reason could be feeling betrayed by the village leaders. Maybe they made decisions that Naruto strongly disagreed with, like how they treated certain groups or individuals. If Naruto felt that Konoha was no longer the place that stood for justice and fairness as he once believed, he might abandon it.
His relationship with Sasuke would likely become more strained. Since Sasuke has his own complex feelings about Konoha, if Naruto is sick of it too, they might not see eye - to - eye on how to deal with the situation. Their bond which was once about protecting the village could be broken.
This fanfiction might make Naruto more of a loner. In the original, he was always surrounded by friends and the support of the village. Abandoning Konoha would force him to rely only on himself and his own powers. His character could become more cynical as he distances himself from the place he once called home.
With the villagers of Konoha, Naruto was once seen as a hero. But his leaving could cause mixed feelings. Some might see it as a betrayal, while others might respect his choice. Fem Sasuke was always an enigma in Konoha. Her leaving might be seen as expected by some, but for those who hoped she would fully integrate into the village, it would be disappointing. And as they journey outside Konoha, they will meet new characters, and their relationships with them will be based on their new identities as outcasts from Konoha.
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.
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.