Naruto could develop a new sense of self - reliance. He has always had his friends and comrades to rely on, but with the loss of his arm, he might feel the need to be more self - sufficient. He could start exploring new forms of ninjutsu that don't require two arms, and in the process, become a more well - rounded and independent shinobi.
Naruto might become more introspective. He has always been action - oriented, but losing his arm could force him to think more about his actions and their consequences. For example, he may be more cautious when engaging in battles.
Maybe he starts to train with one - armed techniques. He could learn from other one - armed ninjas if there are any in the fanfiction world. His friends would also play a big role. They might encourage him to keep going or help him in his training.
He might become more bitter. Losing his job at Hogwarts, which was a big part of his life, could make him feel betrayed and angry. He could isolate himself further from the wizarding community.
In the fanfic, Naruto's character could also become more introverted as he copes with the loss of his arm. He might need time alone to come to terms with his new reality. However, this solitude could also give him time to reflect on his life and his ninja path. He may emerge from this period with a new sense of purpose, perhaps focusing more on non - combat aspects of being a ninja, like diplomacy or teaching. This would be a significant shift from his previous more action - oriented self.
Naruto might develop a deeper understanding of sacrifice. His lost arm is a physical reminder of the risks he takes in battle. This could lead to him being more cautious while still maintaining his fearless attitude when it comes to protecting what he loves. He also may become more empathetic towards others who have physical disabilities or losses.
Naruto may become more cautious. With a prosthetic arm, he realizes his vulnerability more. He might start to think more strategically before jumping into battles. For example, in a fight, he won't just rely on his brute strength but use the unique features of his prosthetic arm to his advantage.
He might become more confident. Without the mask, he no longer has something to hide behind, and this new - found openness could boost his self - assurance.
She might become more cautious. Having received Naruto's arm, she realizes the great sacrifice he made. This could make her think twice before engaging in battles recklessly, as she now has a part of someone she respects and doesn't want to waste this 'gift'.
His confidence usually skyrockets. Knowing he has this new inheritance gives him a sense of purpose and power. He may become more assertive in his actions and decisions.
It can make him more empathetic. Since he has experienced loss (his original arm) and now has to adapt with a prosthetic, he might understand others' pain better. For instance, when he meets a disabled ninja, he can relate to their struggles.
Naruto might become more cautious. Losing an arm would make him realize his vulnerability more. He would probably be more strategic in battles, relying less on brute force and more on his intelligence and remaining ninja skills.