Another possibility is that it could be a reimagined version of Kakashi. He is known for his intelligence in the original series, but in this fanfiction, he could be even more of a silent genius. He might have some hidden knowledge or abilities that he keeps to himself and only reveals at crucial moments to turn the tide of battle or solve a major mystery within the Naruto world.
Well, it could be about a character in Naruto who is a silent genius. Maybe it's a story that focuses on a ninja who doesn't talk much but has extraordinary intelligence and uses it to outwit opponents in battles or solve complex problems within the Naruto universe.
Another possibility is that it's a character from another village who comes to Konoha. This outsider could be known for their emotionless demeanor and incredible kenjutsu skills. They could interact with Naruto and the others, and their different style of combat and attitude could create interesting storylines in the fanfiction.
It could be Orochimaru. He is always after power and Naruto's new silent and perhaps more powerful form could be a threat to his plans, so he would try to stop Naruto.
Sasuke is often a popular character in such fanfictions. Writers like to expand on his already prodigious skills and take his character in new directions. For example, making him even more powerful in genjutsu and creating new techniques for him.
It could be an original character created by the fanfiction writer. This character could be from a minor clan in the Naruto universe but has extraordinary intelligence and potential.
If Naruto was a genius in fanfiction, it could completely change the dynamics of the story. His growth and battles might be much different, and his relationships with other characters could also shift.
He could have the ability to raise the dead shinobi to fight for him. This would give him a huge advantage in battles. For instance, he could bring back the likes of Minato or Jiraiya to assist him in crucial fights.
In some fanfictions, a prodigy is an orphan with no known clan but has an innate ability to understand and copy any jutsu instantly. This character then has to hide their power at first because they are afraid of being used. As the story progresses, they learn to master their power and become a key figure in protecting the village from a new, powerful enemy.
The Silent Proof was a film with a forensic investigation as its core theme. The story was about Lin Zidong, the deputy captain of the criminal police team and the director of the forensic laboratory. After he solved a nameless corpse case in a cave, his father fell from the upstairs of the studio and died. With the clues left by his father and the cooperation of Li Yixing and his colleagues, Lin Zidong finally solved the case. The main cast of the film included Shengyi Huang, Xiaopan Gao, Xun Wang, Guangfu Lee, Zhenyu Wu, and Jiahao Tong. The film was shot in Fuzhou City in the early stages, integrating a lot of local characteristics and Fuzhou's cultural culture. " The Silent Proof " was a highly anticipated public security film. It was Gao Xiaopan's first time challenging the role of a public security officer. The film aims to show the loyal performance of the people's police and the hot-blooded story of protecting the people's peace and contentment. Currently, the film had not been released yet.
It's hard to say without reading it, but it could be Naruto himself if the story is about a secret aspect of his genius that hasn't been explored in the original. Maybe he has some hidden intellectual ability that is only revealed in this fanfiction.