He could become more of a strategic thinker. Kamui offers new ways to approach battles, so Naruto would have to plan ahead more. Instead of just charging in like he usually does, he would think about how to use Kamui to his best advantage. Maybe he would start to analyze his enemies' weaknesses more carefully and use Kamui to exploit those weaknesses, like warping an enemy's weapon away from them.
Naruto's character might become more cautious. Since Kamui is a very powerful and somewhat unpredictable ability, he would need to be more careful when using it. For example, he might hesitate at first, not wanting to accidentally send himself or his friends into the wrong dimension.
In this fanfiction, Naruto's character would experience a significant evolution. Initially, he'd be excited about having Kamui but soon realize the great burden it brings. He'd have to keep it a secret from some people to avoid unnecessary panic. As he trains with Kamui, he'd learn patience, which is not his strongest trait usually. His understanding of power would deepen. He'd see that power is not just about brute force but also about strategy and stealth. This new knowledge would make him a more well - rounded and formidable ninja, and his view of the ninja world would expand as he can now access places and situations that were once beyond his reach.
His relationships could change. His friends might be in awe of his new form, and some might be a bit intimidated at first. But as they see Naruto is still the same person deep down, they would support him. Enemies, on the other hand, would view him as an even greater threat, which would put more pressure on Naruto to protect those he cares about. He would also have to learn to control his new power so as not to accidentally harm his friends with the wings.
Naruto would likely become more introspective. The Mangekyo Sharingan often comes with a lot of emotional baggage in the Naruto universe. So, Naruto might start to question his own identity more, especially since this power is from a clan he has no blood relation to. He could also become more cautious as he learns about the potential dangers of misusing the Mangekyo Sharingan.
Naruto's character would also develop in terms of his relationships. His friends might view him differently, some with awe and some with a bit of fear. He would have to work hard to maintain those relationships. With his enemies, he would be seen as an even greater threat. But Naruto would use this new perception to his advantage. He would try to use the fear of his Jagan Eye power to deter potential attackers and also to broker peace deals when possible. He would grow into a more complex and mature character as he navigates the challenges of having this new power.
Naruto's character would likely become more confident. Having the Rinnegan, a powerful and rare dojutsu, would give him an edge in combat and in understanding the world around him. His skills in sealing would also make him more versatile. He might become more of a thinker, as he has to combine the two abilities effectively. For example, when facing a difficult situation, he would first analyze it with the Rinnegan and then come up with a sealing solution.
Naruto would become more introspective. With a new dojutsu, he would have to understand its powers and how they fit into his fighting style. This would force him to think more about strategy and less about just brute force, changing his overall approach to battles.
Naruto would likely become more introspective. The power of the Tomoe Rinnegan is not just physical but also mental. He might start to question his place in the world more deeply, as this new power sets him apart from others. He could become more cautious in his actions as he realizes the potential destruction his new power could cause if misused.
Naruto's character could develop a new sense of self - awareness. With four eyes, he might feel different from others and this could lead to some self - discovery. He could become more introspective about his role in the village and the ninja world.
He could develop a sense of responsibility towards the power the arm holds. Since Danzo misused power, Naruto would strive to use it for good. This could lead to him becoming more mature and strategic in his approach to protecting the village. For example, he might study Danzo's old battle strategies stored in the arm's memories and adapt them to his own fighting style, all while maintaining his core belief in friendship and loyalty.
His character development could involve him becoming more empathetic. Being mute, he would understand the struggles of those who are different or marginalized. He might start to advocate for them in his own silent way. Also, he'd have to work hard on his physical expressions and body language, which could lead to a more refined and nuanced way of presenting himself. His relationships with others would also change, making him more reliant on true friendship and loyalty rather than just words.