It could be the Nine - Tailed Fox. Since it already has a connection to Naruto, it might take him under its wing in a more fatherly or family - like way. Another possibility is some of the lesser - known demons from the Naruto lore that haven't been explored much.
The plot could involve Naruto being adopted by demons after some sort of tragedy. The demons could see his strong will and decide to make him one of their own. He would then grow up with a different set of values compared to regular ninjas. He might struggle with his identity, not fully belonging to the demon world or the ninja world. He could use his new demonic abilities to protect both the demons and his ninja friends from a greater threat that neither side could face alone.
Yes, there might be such a fanfiction out there. The Naruto fandom is quite large and diverse, with fans creating all sorts of unique and imaginative stories. Some fans like to explore alternative family relations for the characters, and the idea of Naruto being related to demons in some way could be an interesting concept for a fan - created story.
One possibility is that Harry Potter, in this fanfiction, might be exposed to a whole new set of dark magic and powers that demons possess. The demons could see his potential and decide to raise him in a way that is completely different from the wizarding world he knew. Maybe they would teach him to use his magic more aggressively or in ways that are considered unethical in the normal wizarding community.
If Kakashi adopted Naruto, it might change Naruto's path of development. He could receive earlier and more specialized training, and also have a stronger sense of family. This could have a significant impact on his personality and goals.
Well, it depends on personal taste. Some people might find it really exciting as it could bring a new and dark twist to the Naruto universe. The idea of Naruto being associated with the 'king of demons' has the potential to explore different power dynamics and character developments.
It could be about Naruto characters having some sort of encounter or interaction with demons in a rather unique and fictional way. Maybe it's about Naruto himself facing inner demons or real demons in a dance - like battle of wills and powers.
It's possible that Kakashi could be a main character as well. His experience and wisdom would be valuable in the face of the threat of the 100 demons. He could be mentoring the younger characters on how to deal with the demons, and his Sharingan might give him some unique insights into the nature of these demonic entities.
Another theme is identity. When a character is related to demons in some way, like in many 'Naruto demons fanfiction', they have to grapple with their new identity. For example, if Naruto discovers he has a demon side, he has to figure out how that fits into who he is, his values, and his place in the ninja world. This often leads to a lot of internal conflict and character growth. It can be really interesting to see how the characters evolve as they come to terms with their new identity.
Well, it could be about a lot of things. Maybe it's a story where Naruto somehow becomes a god of demons. It could involve new powers, new enemies, and a whole different Naruto universe with a dark and supernatural twist.