Sakura would be extremely proud. She has seen Naruto grow from a clumsy kid to a potential Hokage. She'd probably be right by his side, offering her medical skills to support him and also giving him advice when it comes to dealing with the more diplomatic aspects of being Hokage. Shikamaru, on the other hand, would be a bit more reserved in his reaction. He'd recognize the huge responsibility Naruto has taken on and would be ready to offer his strategic mind to help Naruto make important decisions.
Naruto would probably be extremely hurt. He has always looked up to the Third Hokage as a grandfather figure. So, initially, he would be in denial, thinking there must be some misunderstanding.
When Team Minato meets Hokage Naruto in a fanfiction, their reactions would depend on their individual personalities. Minato would be overjoyed and would immediately start asking Naruto about his achievements and how he has led the village. Kakashi would be his usual calm self but would show his admiration through his words and actions. Obito, who has had a difficult journey, might initially be hesitant but then would be inspired by Naruto. Rin would be the most excited, perhaps jumping up and down and saying how wonderful it is that Naruto is the Hokage. This encounter could also lead to a deeper understanding between them all and a strengthening of the bonds between generations.
The villagers' reaction would be a mix of excitement and some concerns. On one hand, Naruto's popularity among the younger ninjas is huge. His friends like Sakura and Shikamaru would be his biggest supporters and help him in his new role. However, some of the more traditional clans might worry that Naruto's unorthodox ways could disrupt the long - established order in the village. But over time, as Naruto shows his ability to balance his unique style with the responsibilities of the Hokage, they'd come around.
He might be extremely disappointed and angry. Naruto has always dreamed of becoming Hokage, so this ban would be a huge blow to him. He could lash out at those he believes are responsible.
There would be a group of people who understand his decision. They might have seen how much Naruto has sacrificed and how tired he must be. They would support him in his choice to step down and hope he can finally have some peace in his life. For instance, his close friends like Shikamaru might be among those who support his decision.
Sakura would be extremely distraught. She has always cared deeply for Naruto, and seeing him in such a dangerous situation would make her rush to his aid immediately. She might use her medical ninjutsu to heal him if he's injured. Kakashi, on the other hand, would be shocked but also proud that Naruto has the courage to face his inner demons in such a drastic way. He would try to understand Naruto's motives and help him get back on track.
Some villagers might be in shock and disbelief. Naruto has always been a part of the village, and suddenly being sealed away would be hard to accept. They might start to question the Hokage's decision.
The villagers would likely be more confident in their leader. They would feel safer knowing that the Sandaime Hokage is not going to be pushed around easily. For the ninja, especially the younger ones like Naruto, they would have a stronger role model. Naruto might be inspired to be even more determined in his own growth as a ninja. He would see that even an older and more experienced leader can change and become more assertive.
Yes, in fanfiction, Naruto can do all sorts of things that might not be shown in the original series, like rapping. Writers often take creative liberties in fanfiction to explore different aspects of characters. So it's not unusual to find a story where Naruto has a hidden talent for rapping, perhaps to inspire his friends or as a new form of ninja art.