Well, it could start with Naruto accidentally stumbling upon an ancient artifact that has the power to revive the Hokages. Once revived, they find that the ninja world is facing a new danger that is slowly corrupting the chakra of all ninjas. The Hokages then decide to train Naruto and the new generation of ninjas in a special way to combat this threat. They share their unique experiences and skills, and together they form a plan to save the ninja world from this new catastrophe.
There could be a group of powerful out - of - world beings who are interested in the chakra of the Hokages. They revive the Hokages themselves, but with the intention of stealing their chakra. They are extremely powerful and have abilities that the ninja world has never seen before. Their arrival shakes the very foundation of the ninja world and forces the Hokages and Naruto to come up with new strategies to defeat them.
Boruto might be in awe. He has always known his father as the Hokage, a powerful and respected figure. Seeing Naruto's past full of struggles, loneliness, and determination would make him realize how far his father has come. It could also make Boruto more empathetic towards Naruto and perhaps inspire him to be more like his father in some ways.
The older characters such as Kakashi would be cautious. They would recognize Naruto but also be worried about the implications of someone from the future being in the present. They would want to know if his presence could change the future in a negative way. For example, they might fear that his actions could lead to the earlier awakening of a powerful enemy. As for the villains, they might see future Naruto as a threat and try to eliminate him as soon as possible. Orochimaru, for instance, would be very interested in Naruto's future powers and might try to capture him to study. And the new generation of ninja in the past would look up to future Naruto, seeing him as a symbol of what they could become.
Naruto's leadership style would be more about friendship and understanding. Unlike some previous Hokages who were more strict and formal, Naruto would be approachable. He'd probably be the kind of Hokage who'd listen to every ninja's problem personally, whether it's a big mission - related issue or a small personal matter.
Captain America would probably be very reflective. He might see his past self as a reminder of his long journey and how much he has changed. He could try to offer some words of wisdom to his younger self.
Another way Naruto could react is by trying to avoid Tsunade. He might think he's done something wrong and is in trouble, so he'll start taking different routes, being more secretive about his activities. But as he does this, it could make Tsunade even more determined to stalk him. And eventually, when the truth comes out, there could be a big emotional moment between them, either of relief or of anger depending on how it's all handled.
At first, Naruto would be extremely hurt. He has always considered Team 7 as his family, so their betrayal would be a huge blow. He might go into a state of shock and disbelief.
If Naruto was an Ajin in a fanfiction, the characters in Naruto would have a mix of reactions. Hinata would be concerned for Naruto's well - being. She might be a bit scared at first because of his new and strange abilities, but still stand by him. The villagers, who have had a rocky relationship with Naruto in the past, might be afraid of him all over again. They could see his Ajin powers as a threat. On the other hand, Naruto's close friends like Shikamaru would try to understand what's going on and help Naruto control his powers if they can.
Initially, Naruto would be heartbroken. His friends and his village mean everything to him, and the thought that the gods, who are supposed to be just, have turned against him would be a huge blow. However, he wouldn't give up. He would use his determination and his unwavering belief in himself. He might start looking for allies among those who are also disillusioned with the gods or who believe in his innocence.