His friends from Team 7 would be the first to react. Sasuke, despite his tough exterior, would feel a sense of obligation as they were once teammates. He might challenge Naruto in a spar to see if he could snap him out of it. Sakura would be fussing over Naruto, constantly checking his vital signs and trying to come up with a medical solution. As for the other Konoha ninjas, Shikamaru might find Naruto's situation a bother at first but then start thinking of strategies to deal with it. Ino would use her mind - transfer jutsu to try and understand what Naruto is going through on a mental level.
Sasuke might be initially dismissive but secretly concerned. He would probably keep an eye on Naruto from a distance, not wanting to show too much emotion. Sakura, on the other hand, would be more openly worried and would try to use her medical skills to figure out if there's something physically wrong with Naruto.
He might also try to reason with her. Naruto has a big heart and he would likely want to understand her feelings. He could say things like 'We're friends, we don't need to be this way.' He'd try to get her to see that her possessiveness is not healthy for either of them.
Kakashi would be intrigued. He'd probably study Naruto more closely to see how this new influence affects his growth as a ninja. He might also try to find ways to help Naruto blend Kratos - inspired skills with his existing ninja abilities. Kakashi would be open - minded about it, knowing that new sources of inspiration can lead to great power.
Sasuke would probably be very suspicious at first. He doesn't trust easily and seeing Naruto with Zabuza, an enemy in his eyes, would make him question Naruto's motives. Kakashi, on the other hand, might be more open - minded. He would likely keep an eye on the situation to make sure Naruto isn't being led astray but also recognize that Naruto has a way of changing people for the better.
The older generation, like Kakashi, would be very cautious. He has seen a lot in his life and would be worried about the implications of Naruto having such god - like powers. He would try to guide Naruto to use these powers responsibly, fearing that Naruto's inexperience with such power could lead to chaos in the ninja world.
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.
Sasuke would likely be very suspicious at first. He has always been on guard around Naruto, and this new revelation would make him even more cautious. He might see Naruto as a potential threat to the village or to his own goals.
Some characters might be in awe. For example, Naruto himself would probably be excited to meet the reborn Rikudou Sennin, hoping to learn more about the origin of chakra and how to further peace in the ninja world. However, characters like Sasuke might be more cautious. He would be wary of the power the reborn Sennin holds and might suspect his intentions, especially if the reborn Sennin shows any signs of disrupting the current balance of power.
Zabuza would probably be initially shocked. He might see it as a complication to their plans, but as time goes on, he could become protective. Naruto, being the kind - hearted person he is, would likely offer his support and friendship. He might not fully understand Haku's situation at first, but he would try to be there for her.
Sakura would be extremely worried. She would probably try to gather the other members of Team 7, like Sasuke and Kakashi, to go after them. Sasuke might be a bit more hesitant at first, but his loyalty to Naruto would eventually make him join the search. Kakashi, on the other hand, would be more strategic. He would try to figure out Minato's motives first and then plan the rescue mission accordingly.
The characters in 'Naruto' would be deeply affected if Naruto dies at birth in fanfiction. Jiraiya would be one of the most affected. He saw Naruto as his protege and the hope for the future. Without Naruto, Jiraiya might lose his enthusiasm for training and spreading his teachings. Tsunade would also be saddened as she had a connection to Naruto through her relationship with Jiraiya and Minato. The Rookie 9, Naruto's friends, would have a completely different dynamic. They might not form as tight a group without Naruto's energetic and positive influence. And the Sannin, as a whole, would have their relationships and legacies altered without Naruto in the picture.