One common theme could be Naruto being physically exhausted from his intense training and battles. For example, a fanfic might explore how he struggles to keep up with his daily tasks in the village while dealing with the fatigue. Another theme could be his mental tiredness, like being tired of the political games in the shinobi world or the constant expectations on him as a hero. Also, some fanfics might show Naruto being tired of the cycle of revenge that he often has to deal with among different clans.
Another reason could be the lack of trust he feels from his teammates in some fanfiction scenarios. If Sasuke is constantly keeping secrets or Sakura is doubting Naruto's abilities, it can make him feel isolated within the team and eventually tired of being part of it.
In this fanfiction, perhaps Naruto is tired of pretending that he doesn't feel the weight of being the hero. He could start to show his true emotions, like his insecurities and doubts. This could lead to some interesting interactions with his friends. For example, Sasuke might be one of the first to notice the change in Naruto and they could have a heart - to - heart conversation about their past and future. And it might also cause a stir in the village as people are used to seeing Naruto in a certain way.
It could be Sasuke. If Sasuke has continuously pushed Naruto away or done something extremely hurtful, it might have made Naruto feel tired of the whole situation. Since Sasuke is such an important person in Naruto's life, his actions can have a huge impact on Naruto's mental state.
One common plot is Naruto leaving the village to train in isolation. He gets tired of being underestimated in the village, so he goes off to a far - away place where he can focus on becoming stronger without the distractions and negative opinions of the villagers. When he returns, he's much more powerful and surprises everyone.
Perhaps he would try to find a new team or group to work with. There could be other ninjas who share his values more closely. This would lead to a whole new set of relationships and adventures for Naruto.
Maybe Orochimaru could be the main antagonist in this fanfiction. He might see Naruto's state of being tired of pretending as an opportunity to manipulate him. Orochimaru is always looking for ways to gain power and a vulnerable Naruto could be a target for him. He could try to convince Naruto to turn to the dark side by preying on his insecurities that he is now showing instead of hiding them as before.
Well, one possibility could be that Naruto has faced so many hardships and losses in the fic that he's simply mentally and physically exhausted. Maybe he's lost too many friends in battles, or the constant pressure of being a hero has finally gotten to him.
Perhaps in the fanfiction, Naruto is tired because he is constantly traveling. He might be on a long - distance mission to gather information or allies, and the journey itself is exhausting. He could also be tired due to a lack of proper rest. Fanfiction writers might depict him as being so dedicated to his tasks that he neglects to take breaks, leading to fatigue. Or it could be that he is using too much of his chakra in experimental or new jutsu that he is trying to master in the fan - made stories, which leaves him drained.
Maybe in the fanfic, Naruto has faced too many political intrigues within Konoha. He has always been loyal to the village, but if he constantly encounters backstabbing or unfair treatment from some of the village's leadership or clans, it could lead to his weariness.