His character could become more disciplined. Samurai are known for their strict code of conduct, and wearing the armor might make Naruto more aware of self - control. He may start to think more before acting impulsively like he often does as a ninja.
In Naruto fanfiction, samurai armor can be incorporated in various ways. One way is that a character might find a set of ancient samurai armor with special powers. For example, Naruto could discover it during one of his adventures. The armor could enhance his physical abilities, like giving him extra protection or increased strength when he punches or kicks. It could also have some sort of chakra - related properties, like being able to store or amplify his chakra.
Naruto would likely become more studious. Instead of just relying on his natural energy and willpower, he'd have to spend time in labs and studying books. His impulsiveness might decrease as he learns the importance of precision in scientific work.
Naruto might become more cautious. Dealing with the 12 - tails, which is likely extremely powerful, would force him to think before acting. He can't just rush in like he sometimes does.
His character would be shaped by the need for self - preservation. He may learn to hide his emotions better. Maybe he would become more perceptive of people's true intentions. He would grow to be more cautious in his interactions. Over time, as he endures the abuse, he could start to question the world around him and why people are so cruel. This internal struggle could lead to a more complex and mature Naruto, who still retains his core values of friendship and hope.
Naruto's character would likely become more reserved and stealthy. He'd be used to operating in the shadows, which is a big change from his normally boisterous self. His sense of justice might also be refined, as the ANBU has a different view on protecting the village.
In this kind of fanfic, Naruto's character development would be significant. Initially, he'd be full of anger and resentment towards Sarutobi and Konoha. But as he faces the challenges of the outside world, he realizes that there are bigger issues at play. His experience outside the village would make him more empathetic towards those who are also ostracized. He'd become a more well - rounded character, not just a loud - mouthed ninja from Konoha. His relationships with others would change too. He'd form deeper bonds with those who accept him during his exile, and these relationships would shape his future actions and decisions. He might also start to question the whole ninja system, which could lead to him trying to change it when he has the chance to return to Konoha.
Naruto might become more of an isolationist. Danzo was not one to form close bonds easily. So Naruto could be more reserved and keep to himself. However, his natural urge for connection might still be there, and he'd struggle between his upbringing and his true nature. He could start off as a loner but gradually learn to open up as he experiences different things in the village and realizes that not all relationships are like the ones Danzo had.
His character could develop in a darker direction. The torture and manipulation from Orochimaru's experiments could make him question his values. However, it could also strengthen his resolve to protect his friends and the village. He may start to see the world in a more complex way, understanding that there are greater evils out there. And his newfound powers from the experiments could give him a sense of responsibility that he didn't have before.
Naruto would likely be more confident. With Sarutobi as his adopted father, he would have a strong support system. He might not be as brash as in the original story, as Sarutobi's teachings would instill more discipline in him.
He would probably be more calm and composed. Kurenai's influence might make him better at handling his emotions.