Yes, Naruto himself would be an interesting character in it as he has to adapt to this new fission release power. There might also be new characters created specifically for this fanfiction, like a mentor figure who helps Naruto understand the fission release better.
It's possible that there are characters from other villages who come to Konoha to study the fission release. They could be interesting as they bring in different perspectives and fighting styles. Also, there might be some old, forgotten characters from the Naruto lore who are re - introduced because they have some connection to the fission release.
It could be that in this fanfiction, the idea of fission release is a completely new form of chakra manipulation. Maybe Naruto discovers this power accidentally and has to learn to control it. It could lead to him facing new enemies who are also interested in this powerful fission release, and the story could be about his journey to master it and use it for the good of the Hidden Leaf Village.
There's often a character named Kyo in some Iron Release fanfictions. He's an orphan who discovers his Iron Release ability by accident when trying to protect his friends from a group of bandits. His unique take on Iron Release is that he can combine it with wind chakra to create razor - sharp iron shards that can cut through almost anything. Another interesting character is Mei. She's a female ninja who uses her Iron Release to create beautiful yet deadly iron flower constructs that can release poisonous spores.
There is a fanfiction where Naruto is in a different dimension where the rules of chakra are a bit different. Here, his Fire and Wind Release combine spontaneously in a beautiful display of power. He has to learn to control this new - found power and use it against the enemies in that dimension. This fanfiction could explore how Naruto adapts to new and strange power dynamics.
Well, I've come across some 'Naruto has Paper Release' fanfictions. In some of them, Naruto uses this new ability to his advantage in battles. He might create paper clones that can deceive opponents or use paper-based defenses that are more flexible than normal ones. It's really interesting to see how different authors incorporate this unique ability into the Naruto world.
Well, some Naruto release fanfiction might revolve around Naruto getting a new power. For example, he could discover a special kekkei genkai that was dormant within him all along. This new power would change the way he fights and how others perceive him in the ninja community. Also, there are fanfictions that take a different turn on the relationships. Like Naruto and Sasuke having a more amicable relationship earlier on and working together to change the shinobi system from the inside out. It gives a whole new perspective on their bond.
The uniqueness. It takes the well - known Naruto world and adds a new concept of fear release. It allows for new storylines and character developments that we don't see in the original series.
Sometimes, the main character could be an established Naruto character like Naruto himself or Sasuke, but with a new twist where they somehow gain the ability to use light release. They would then have to learn how to control this new power and incorporate it into their existing fighting styles.
Another possibility is that the main character is a sensei or an elder in the ninja village who has knowledge about the Chaos Release. They guide the younger generation in understanding this power. In some fanfictions, it could be a group of characters, each with their own relationship to the Chaos Release, working together or against each other depending on their goals.
Yoruichi is often a popular character in such fanfictions. Her natural speed and grace in the Naruto - inspired world make her a great fit for stories involving the Swift Release.
Well, it could be an original character created specifically for the fanfiction. This character might be an outcast because of their Darkness Release abilities. Maybe they are trying to prove themselves in a world that fears their power.