Jiraiya could play a crucial role. As Naruto's mentor, he might have left behind some hidden teachings or prophecies that Naruto discovers in the fanfiction. These could guide Naruto on a path to unlock new powers or understand the secrets of the ninja world better.
There could be an original character created specifically for the fanfiction. This character might have some special ability or knowledge that they use to help Naruto. For example, a mysterious sage from a far - off land who sees Naruto's potential and decides to train him in a unique form of combat or chakra control.
Obviously, Naruto is one of the main characters since it's in the title. But there could also be other important characters like Sasuke, Sakura, and Kakashi. They might interact with a more powerful Naruto in different ways compared to the original story.
It might also be some of the existing characters who have turned evil. For example, Sasuke could be corrupted by a dark power and become an antagonist again. His newfound dark powers could rival Naruto's, leading to some epic battles between the two former friends.
Obviously, Naruto himself is the most important character as it's about his journey to become a toad sage. The toad sages like Fukasaku and Shima play crucial roles too. They are the ones who guide Naruto and teach him the ways of the toad sage.
It could be an old sage. There are often sages in the Naruto world who have access to powerful artifacts. An old sage might see Naruto's potential and give him the weapon to help him in his fight against evil.
Madara Uchiha was also very powerful. His mastery over the Sharingan, his grand plans and his combat skills made him a major threat throughout the series.
Another possibility in fanfiction is that Naruto forms a special bond with a powerful creature. Similar to how he had a bond with the Nine - Tails, but this time it could be a mythical beast from a different dimension. This bond might allow him to access a whole new set of powers, such as the ability to transform into a hybrid form with enhanced abilities like flight and super strength.
There are definitely fanfictions that follow this concept. Fanfiction writers often take the basic elements of the Naruto universe and twist them in interesting ways. The idea of Naruto eating chakra to become super powerful fits into this creative exploration. In some of these stories, Naruto might eat chakra that has been stored for centuries, and as a result, he not only becomes stronger but also gains knowledge or wisdom associated with that chakra, which he can then use to his advantage in battles and in making decisions for the greater good of the ninja world.
The main challenges for Naruto could be related to his past. He has a difficult past with being an orphan and having the nine - tailed fox inside him. In this fanfiction, he might have to come to terms with his past in a new way. He also may face enemies who target him because of his unique situation, and he has to overcome these threats while still holding onto his values and becoming a true ninja.
His personality could become more patient. The process of becoming a sage often involves a lot of waiting, observing, and learning from nature. Naruto, who used to be quick to jump into action, might learn to slow down. He could also become more empathetic as he connects with the natural world and the energy around him. This newfound empathy could change how he interacts with his enemies and friends alike. He might try to understand their motives more instead of just fighting them head - on.
Often, characters with huge amounts of chakra are considered powerful. Naruto himself might be even more powerful in fanfiction, with his already massive chakra reaching new heights. Sasuke could also be a top - tier character, his Sharingan combined with a large chakra reserve making him a force to be reckoned with.