Choji would be sad and also a bit scared. He has always been a loyal friend to Naruto. He might not be as aggressive in trying to stop Naruto as some of the others, but he would try to reason with him, talking about their friendship and how the village has also been a home to Naruto. And Ino would use her mind - related jutsu to try to break any possible mental influence on Naruto if there is one, while also trying to reach out to him emotionally.
The village might experience a huge boost in morale. Naruto killing Pain would be seen as a major victory, and the villagers would feel safer. They would look at Naruto as an even greater hero, which could lead to more trust and unity within the village.
Sasuke might be able to stop Naruto. They have a long - standing relationship and Sasuke has always been Naruto's equal in terms of power. He could use his Sharingan to try and break whatever is controlling Naruto or just fight him head - on and appeal to their old friendship.
It could be that Naruto is possessed by an evil spirit. This spirit wants to destroy the Leaf Village for its own reasons. Naruto, under its control, would first cut off the village's supply lines, making it difficult for the villagers to get food and resources. Then, he'd start attacking the ninja in the village one by one. He might even use his Nine - Tails chakra in a very destructive way, not caring about the harm it would cause to the place he once called home.
He might meet Iruka first. Iruka was always like a father figure to Naruto, and it would be a very heartwarming reunion. Iruka would probably be one of the first people to welcome Naruto back with open arms.
In the fanfic, Naruto could build the village by first establishing a set of rules and values that everyone can follow. Then, he'd probably use his connections. For example, he could ask his friends and allies from different villages to send resources or experts in construction. He might also use his own knowledge of the Leaf village's layout and infrastructure to create a similar but unique village. He'd ensure there are places for families to live, shops for trading, and of course, ninja training facilities. This way, the new village can thrive and be self - sufficient.
In the fanfic, Naruto could offer a wealth of help to the Leaf. He might start by sharing his new knowledge and techniques that he has acquired during the process of making his own village. This could enhance the combat capabilities of the Leaf ninjas. He could also offer his strategic insights, which have been sharpened by his own village - building experience. Moreover, Naruto could help in terms of community building within the Leaf. He could promote unity among different clans and factions, just as he did in his own village. And of course, in times of crisis, his raw power and unwavering will would be a great shield for the Leaf.
The plot could involve Naruto coming back to the Leaf Village to fulfill a prophecy. He may have discovered something during his travels that made him realize he has a crucial role to play in the village's future. Along the way, he could face challenges from within the village, like some people being skeptical of his newfound knowledge or power. But through his determination and the bonds he has with his friends, he overcomes these obstacles and helps the village thrive.
Maybe it's to protect the village. He could discover a threat that he can only face away from the Leaf Village, to keep the danger from directly reaching his home and loved ones. He leaves as a form of self - sacrifice.
Naruto could respond with anger at first. He has given so much to the Leaf Village, and this betrayal would be like a slap in the face. However, his kind heart might also make him wonder if there is a misunderstanding. So, he could start by trying to communicate with the villagers he trusts. If that fails, he might leave the village for a while to get stronger and then come back to confront those who wronged him.