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.
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.
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.
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.
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.
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.
Well, Naruto is surely one of the main characters since it's in the title. He's the one who's supposed to be the master of silent killing in this fanfiction.
One possible plot could be that Naruto and his friends somehow get transported to Silent Hill. Naruto, with his determination and positive energy, has to face the nightmarish creatures of Silent Hill while trying to find a way back home. His ninja skills like shadow clones could be used in unique ways, for example, sending clones to scout the fog - filled streets while he stays with his friends to protect them. And perhaps they meet some of the iconic characters from Silent Hill, and together they try to figure out the mystery of the town and how to escape it.
The contrast. Naruto is known for being loud and energetic, so seeing him silent creates a whole new dynamic. It makes readers wonder what's going on in his head and how he'll still manage to be the hero without his usual banter.
The Silent Killing Technique in Naruto fanfiction often serves as a plot device. It can be used to create tense and unexpected moments. A character might suddenly use it to take out an enemy without warning, adding an element of surprise. This can change the course of a battle or even an entire story arc.