It might also develop through Naruto's actions instead of his words. Since he can't talk, he would have to rely on gestures and facial expressions more. His friends would start to learn to read these signs, and this new form of communication could create unique and interesting interactions. For example, Naruto might use hand signs not just for jutsu but also to convey simple messages like 'yes' or 'no'.
The plot could take a darker turn. Without Naruto's communication, misunderstandings could easily arise. Enemies might take advantage of his silence and spread false rumors about him being under some kind of evil influence. This would lead to a situation where Naruto has to prove his innocence without being able to speak for himself, adding a lot of tension and drama to the fanfiction.
The plot could develop through the reactions of other characters. They would be confused and concerned about Naruto's silence, which could lead to them trying different ways to reach out to him. For instance, Sakura might use her medical ninjutsu to check if there's any physical reason for his silence.
As Naruto is silent, his friends might start to recall past events to see if there were any signs leading up to this. They could also try different ways to communicate with him without words, like using body language or leaving him notes. This could lead to some interesting interactions and new friendships or alliances forming as they all work together to reach Naruto.
It may add tension to the story. If Naruto is a key character and he's not interacting, it can disrupt the normal flow of relationships in the fanfiction. This disruption can cause conflict among other characters who rely on Naruto for various reasons, like teamwork in ninja missions.
Perhaps he's under a powerful genjutsu. In the Naruto universe, genjutsu can manipulate a person's perception and behavior. It's possible that an enemy has cast a genjutsu on Naruto that makes him believe that if he talks to anyone, something bad will happen to them, so he chooses to remain silent.
One possible reason could be a traumatic event. Maybe he witnessed something so horrible that it made him shut himself off from everyone. For example, if he saw his friends in great danger and couldn't save them in time, it might have led to his silence as a form of self - blame.
His lack of feelings could also make him vulnerable to manipulation. Villains might try to use him as a weapon since he doesn't have the emotional restraint that he used to. This could create a complex web of events where Naruto's friends have to rescue him from the clutches of the villains while also dealing with the threat he poses.
Perhaps Naruto is focused on his own personal growth and training. He might see the yaoi relationships around him as a distraction from his goals of becoming a stronger ninja. He could be thinking that engaging with others involved in yaoi would lead him astray from his path of self - improvement.
Maybe Naruto teams up with some non - ninja characters. Together, they could come up with new ways to solve problems in the village that don't require ninja skills. As a result, he gradually changes the view of the village towards non - ninja activities, which is a significant development in the fanfiction.
It would likely be very strained. Naruto would probably avoid Kushina as much as possible. He might not even look at her when they're in the same room.
Well, it could change the plot in many ways. For example, he might get some crucial information from the dead. Maybe he could learn some long - lost jutsu from a dead ninja master, which would make him stronger and help him in battles. Also, he could get some secrets about the Akatsuki's plans from their deceased members, which would give Konoha an advantage.
It might change his relationships. He could communicate with the ghosts of fallen comrades or enemies. This would give him a unique perspective. Maybe he could understand the motives of former villains better and find ways to prevent future conflicts. Also, it could make his bonds with his living friends even stronger as he shares what he learns from the ghosts.