The younger generation of ninja like Boruto and his friends would be in awe. They've heard so many stories about Naruto, and now here he is, alive again. Boruto might have a complex reaction, as he's always been in his father's shadow. With Naruto back, he has to re - evaluate his own goals and relationship with his father. The other villages' leaders would be cautious. They know how powerful Naruto was, and his revival could mean a big shift in the political and power dynamics of the ninja world.
Sasuke would probably be one of the most affected. He might feel a mix of guilt for not being able to prevent Naruto's death in the first place and relief at his revival. Sakura would be overjoyed, and she'd likely be the first to rush to Naruto's side to check if he's really okay. Kakashi, on the other hand, would be more reserved in his reaction, but still happy to see Naruto back.
Sasuke would be very cautious. He has a history with Madara and would be on guard. He might not trust Madara even if Naruto believes in him.
The village elders might see Naruto's memory loss as a threat to the village if they think it affects his ability to protect it. They could try to keep an eye on Naruto and the male character he is involved with in the Yaoi relationship. This could create tension as the two just want to figure out Naruto's situation and develop their relationship, but now they have to deal with the watchful eyes of the elders.
Sakura would be extremely worried. She has known Naruto for a long time and seen his determination. She would try to talk to him, remind him of all the people who care about him, like their friends in Konoha. She might even try to use her medical skills to check if there's some sort of physical or mental ailment causing this.
Well, it could go in many ways. Maybe Naruto wakes up with a newfound power. He might then start to seek out his friends and allies to tell them he's back. And then they could plan their next move against their enemies together.
Sasuke would be deeply affected. He and Naruto had a complex relationship. He might feel a sense of regret for all the times he had pushed Naruto away. His reaction could range from anger at the situation to a new - found respect for Naruto's sacrifice.
Sakura would be completely devastated. She's been in love with Sasuke for so long and has a deep bond with Naruto too. She might go into a deep depression and lose her will to be a ninja for a while.
Sasuke, on the other hand, might act like he doesn't care much on the surface, but deep down he would be a bit confused and might start to see Naruto in a new light. He's not very good at expressing emotions, so his reaction would be more subdued.
Well, some characters' reactions can be really complex. For example, Dumbledore's portrait might show a solemn look, as if he knew this was an inevitable outcome. The students at Hogwarts would be in a state of shock. Those who were in Slytherin house might feel a sense of loss for their head of house, even if they didn't always understand him. And Neville, he might see Snape's death as a tragic end to a misunderstood hero.
Naruto would be extremely devastated. He sees Kakashi as a mentor and father figure. He might go into a period of deep depression at first, but then turn his grief into motivation to become stronger. Sakura would also be very sad and might focus more on her medical skills, vowing to save more lives in Kakashi's memory. Sasuke might have a more internal reaction, feeling guilty if Kakashi died protecting him, and it could further fuel his own goals, whatever they may be at that time.
Sasuke would likely be very conflicted. He has a deep bond with Naruto, and he would not want to fight him, but he also has loyalty to Konoha. He might try to reason with Naruto first before taking any aggressive action.