One potential new character could be a civilian with special powers who becomes involved in Naruto's secret life. This civilian could be a key to unlocking a new aspect of the ninja world that Naruto was previously unaware of. They might also bring a fresh perspective to Naruto's adventures, as they are not bound by the traditional ninja code.
There could be a mysterious mentor figure who guides Naruto in his secret life. This person might have unique abilities and a deep understanding of the ninja world's secrets. Another potential new character could be a spy from another village who discovers Naruto's secret life and tries to use it to their advantage.
Maybe there's a young, talented ninja from a far - off land who stumbles upon Naruto's secret life. They could become an ally or a rival. There might also be an old sage who has been observing Naruto's secret activities and decides to step in and offer his wisdom at a crucial moment.
Tsunade might also play a role. She could suspect Naruto of having a secret life and start an investigation. And of course, Orochimaru could be involved as well, either trying to use Naruto's secret for his own gain or being a part of the mystery that Naruto is trying to solve in his secret life.
There could be a new rival for Ash. This rival might have a very different approach to Pokemon training, like focusing more on the beauty and grace of Pokemon rather than just battle strength.
Another potential new character could be a fellow lost soul. This character could be from another village or even another dimension. Together with Naruto, they could try to find a way out of the darkness while sharing their different experiences and knowledge.
One potential new character could be a sage who was there during Kaguya's time and has been in hiding ever since. This sage could have knowledge about the true nature of Kaguya's powers and how Naruto can control and use them properly. He might also be a bit of a trickster, making Naruto go through various trials to prove himself worthy of this knowledge.
There could be new Suna shinobi that Naruto befriends. For example, a young and talented sand ninja who has a unique jutsu related to the desert environment, like being able to manipulate sandstorms on a small scale. Another potential character could be an elder in Suna who has a lot of knowledge about the village's history and secrets, and who helps Naruto understand his new role in Suna.
There could be a Suna ninja who becomes Naruto's mentor. This ninja might have a special skill in using sand and wind chakra together and teaches Naruto how to control his own chakra better in the Suna environment. Another potential character could be a young Suna girl who befriends Naruto and shows him the ropes of living in Suna, like where to find the best oasis for water.
Maybe a foreign ninja who has a similar experience of being ostracized in their own village. They cross paths with Naruto and together they form an alliance. This foreign ninja could have unique abilities that Naruto learns from, and they both work towards changing the way they are perceived in their respective worlds.
There could be a powerful mentor figure that Naruto met during his time away. This person might have taught him the secrets to his newfound strength.
Well, in this fanfiction, we might see some new characters related to the Nine - Tails' origin. Maybe there are other tailed beasts' hosts from a long - lost clan who come to offer their knowledge on handling such a situation. Additionally, there could be a hermit who has been observing Naruto from afar and now steps in to guide him through the difficulties of having a broken seal. And don't forget about the potential dark side characters, like a sorcerer who wants to use Naruto's broken seal to open a portal to a dark dimension.
There could be a young prodigy from a small, unknown village who has a natural affinity for the Jinton release. This character could come to the Hidden Leaf Village to learn more about controlling it and end up befriending Naruto and his friends.