Naruto is the central figure. But also, there could be antagonists who are trying to stop Naruto from fully realizing his potential as the heir of Kaguya. These could be rogue ninja or some sort of secret organization. His friends from Team 7, Sasuke, Sakura, and Kakashi, would be main characters as they stand by Naruto's side. There could also be some sort of spiritual guide, perhaps a descendant of someone who was close to Kaguya in the past, who helps Naruto understand his heritage and powers.
Obviously Naruto would be one of the main characters since it's about him being the heir of Kaguya. Sasuke could also be a main character as Naruto's rival and friend. Sakura might be involved too, as she is part of Naruto's team. And there could be other characters like Kakashi, who would play a role in guiding Naruto as he discovers his new identity. There might also be some new characters introduced that are related to Kaguya's past, who either help or hinder Naruto on his journey.
In some fanfictions, Naruto can be depicted as Kaguya's heir. Fanfiction allows for a great deal of creative freedom, so authors might create a storyline where Naruto has some connection to Kaguya that makes him her heir. This could be based on new powers or abilities that Naruto discovers which are related to Kaguya's in some way.
In this fanfiction, the plot might involve Naruto being the heir of Kaguya because of some ancient prophecy or a hidden bloodline connection. He could then be hunted by those who fear his potential power. Naruto would have to fight against these enemies while also trying to understand the true nature of his inheritance. He might also uncover secrets about the origin of chakra that were related to Kaguya, which could change the whole understanding of the ninja world.
Sasuke would most likely be involved. Since he has a strong bond with Naruto, he would sense something is wrong and try to free Naruto from Kaguya's control. Sakura might also be part of it as she cares about Naruto and would be determined to save him. Kakashi could play a role too, using his wisdom and experience to figure out a way to break Kaguya's hold on Naruto.
Obviously, the heir of Madara would be a main character. There might also be other characters from the original Naruto series, like Naruto himself. Naruto could be in opposition to the heir, seeing them as a threat to the peace he has worked so hard to achieve.
Obviously Naruto would be one of the main characters. There might also be his usual friends like Sasuke and Sakura. But since it's a fanfiction about him being the heir of chaos, there could be new characters introduced who are related to this chaos aspect, like some ancient beings or a secret clan.
Well, Naruto is obviously one of the main characters as it's about him being the heir of darkness. Sasuke could also be a major character as his relationship with Naruto is always a central aspect in Naruto - related stories. Sakura might also play an important role, perhaps being one of the first to notice the changes in Naruto due to his new status.
Obviously Naruto would be one of the main characters since it's about him being the heir to the Uzumaki. Sakura and Sasuke might also be important characters as they are Naruto's friends and comrades. There could also be some original characters created specifically for the fanfiction, like an old Uzumaki sage who guides Naruto on his journey as the heir.
Since I don't know the specific 'naruto kami heir fanfiction', it's hard to say for sure. But it could be a new character who is the heir, maybe a descendent of an important figure in Naruto lore. It might also include well - known Naruto characters like Naruto himself, Sasuke, or Sakura who interact with this heir character.
Sasuke can also be involved in some cases. Since he and Naruto are often together in many situations, Sasuke's presence might add some complexity to the relationship between Kaguya and Naruto. For example, Sasuke might be suspicious of Kaguya's intentions towards Naruto at first.
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.