Obviously, Naruto would be one of the main characters as he is the one who is the reincarnation of Kisuke. And Kisuke himself, even if only in the context of his past life or the influence he has on Naruto. There might also be other Naruto - related characters like Sasuke, Sakura, etc., as they would interact with Naruto in this new situation of his reincarnation.
Well, Naruto is surely a main character as he is the reincarnation in question. Kisuke, though his exact form of presence might vary. If it's a more in - depth fanfiction, there could be new characters created specifically for this reincarnation plot. But the core Naruto characters like Naruto's sensei Jiraiya, who could have an interesting take on Naruto's new identity as Kisuke's reincarnation, would also be important characters in this fanfiction.
Well, it could be about a story where a character, perhaps Naruto, is somehow related to the reincarnation concept involving Kisuke. Maybe it's a crossover where Naruto takes on some traits or a role related to Kisuke's reincarnation in a fictional universe created by the fanfiction writer.
I think Ichigo would be a great character to pair with Naruto in Kisuke fanfiction. Since Kisuke has a connection to Ichigo's story, and Ichigo's combat style and determination could match well with Naruto's. They could learn from each other and have some really cool team - up moments.
Obviously Naruto would be one of the main characters. Since it's about his reincarnation related to Sparda. But there might also be characters from the Naruto series like Sasuke, Kakashi etc. who would be involved in the story. And depending on how the Sparda aspect is incorporated, there could be some new characters related to Sparda's world as well.
Naruto is surely one of the main characters since it's about his reincarnation. And there would likely be his friends like Sasuke and Sakura. Also, characters related to the Sage of Six Paths might play important roles, either as allies or antagonists.
In many 'Harry Potter Kisuke fanfiction' stories, Harry Potter and Kisuke are the main focuses. Harry is the boy - wizard who has to deal with the threats in his world, and Kisuke is the new element that shakes things up. But we can't forget about the Hogwarts professors. Dumbledore, for instance, is likely to be a significant character. His wisdom and power would surely come into play when dealing with Kisuke, who might be an unknown factor in the wizarding world. He could either be an ally or a potential problem, and Dumbledore would be there to figure it out.
Obviously, Naruto would be the central character as it's about his reincarnation of Juubi. Sasuke would also play a major role. He has always been Naruto's rival and friend, and in this scenario, he would be involved in Naruto's journey with the new power. Kakashi could also be an important character, perhaps guiding Naruto in some way on how to handle this new and dangerous power.
Obviously, Naruto and Ichigo would be the main characters. Since it's a reincarnation fanfiction, they would be at the center of the story. But other characters from both universes could also be important. In the Naruto side, Sasuke might play a role as he has a strong connection with Naruto. From the Bleach side, Rukia could be involved as she was the one who turned Ichigo into a Soul Reaper. Their interactions with Naruto and Ichigo in this new reincarnation scenario would add depth to the story.
Obviously, Naruto is one of the main characters as the story revolves around his connection with the reincarnation of Kurama. Kurama itself is also a central character in a sense, as its reincarnation is the main plot point. Sakura and Sasuke may also be important characters, as they are Naruto's friends and comrades, and their relationships with Naruto could be affected by his new state due to Kurama's reincarnation.
Obviously, the reincarnation of Kaguya would be a main character. Naruto or Sasuke could also be main characters as they might be involved in the discovery of the reincarnation and have to decide whether to trust her or not.
Naruto is often still a main character in such fanfiction. Since he has a strong connection with the tailed beasts already. Sasuke might also be involved as he is another important figure in the Naruto universe. And of course, the new hosts of the reincarnated tailed beasts would be main characters as well.