In addition to the main characters, the elders of Konoha might be important in this fanfiction. They could have a say in how Sakura is received back in the village. And perhaps some of the villains from Sakura's past missions might also make an appearance, either trying to harm her or the village again as she returns, which would make them important in the overall plot.
Obviously Sakura herself is the most important character. Naruto and Sasuke would also be important as they are her friends and comrades. Kakashi could also play a role, maybe as a mentor or someone who gives her advice on how to readjust to Konoha life.
It's possible that the child is an orphan Naruto found. Naruto, having known the pain of being alone as a child, decides to take the orphan under his wing. He brings the child back to Konoha to give it a home and a family within the village.
One possible plot is that Sakura returns to Konoha to reunite with her friends. She has been away for a while and during that time, things have changed in the village. She has to readjust to the new Konoha while also dealing with her own personal growth and the relationships she left behind.
Sakura's reaction would depend on how the author writes her character development. If she's become more confident in herself, she might approach Sasuke with a more assertive attitude. She could tell him that she's not the same girl he left behind. However, she'd still have that underlying love for him. She might also be worried about how the village will accept Sasuke's return and how it will affect her standing in Konoha. So her reaction would be a complex blend of personal feelings and concerns for the village.
Well, it could be about Sasuke coming back to Konoha and Sakura trying to re - establish their relationship. Maybe she's hesitant at first because of all the pain he's caused in the past.
In this fanfiction, Naruto is the key figure. However, characters like Shikamaru, who is known for his intelligence, might also be involved. He could be helping to plan Naruto's welcome or dealing with any potential issues that Naruto's return might bring. Also, Hinata, given her relationship with Naruto, would surely be part of the story. And the elders of the village may also play a role, as they often have a say in important matters regarding the village and its shinobi.
Aside from Naruto and his immediate family, characters like Kakashi could also be important in this fanfiction. He was Naruto's mentor, and he would surely be there to welcome them back. And Sasuke might also play a role, as he is Naruto's friend and has a connection to the village too.
Well, Naruto's friends and comrades from his past adventures are likely to be in it. But also, there could be some spiritual or mythical characters related to the concept of the golden fox. For example, there might be an old sage who knows the secrets of the golden fox and can guide Naruto on how to use its power properly. There could also be other villages' representatives who come to Konoha to see this 'Naruto with the golden fox' phenomenon and see if it poses a threat or an opportunity for their own villages.
Sakura's friends like Naruto and Sasuke could be main characters. They might be the ones trying to find a way to save her. They could be using their skills and powers to look for a cure or a solution.
Obviously, Ash would be one of the main characters. His Pikachu would also be there as his constant companion. Serena might also be a main character as she has a connection to Ash and is from Kalos.
Obviously, Ash is the most important character as the story revolves around his death and return. Pikachu is also crucial as his closest pokemon companion. His friends like Misty, Brock, and Serena would play significant roles as they would be affected by his death and overjoyed at his return.