Naruto would become more confident. With Escanor's power, he'd have a new level of strength that he didn't have before. He might be less impulsive in battles because he has such a powerful ace up his sleeve. For example, instead of rushing head - on all the time, he'd calculate his moves better, knowing he can unleash Escanor's power when needed.
If Naruto had Escanor's power, his character would change in several ways. Physically, he'd be stronger and more durable. This would make him less likely to be injured in battles, which could change his attitude towards fighting. He might become more of a protector, using his power to shield his friends and the village. Emotionally, he could become more prideful like Escanor at times, especially when his power is at its peak during the day. However, his core values of friendship and determination would still remain, but his overall demeanor would be a bit more intimidating to his enemies.
Naruto's character would experience a significant transformation. His physical abilities would skyrocket, and this would lead to a change in his self - perception. He might feel a sense of responsibility that comes with great power. He'd no longer be just the underdog shinobi trying to prove himself. Instead, he'd be a force to be reckoned with. His relationships with his friends could also change. They might look up to him even more, and Naruto would have to learn to handle that new dynamic. His training methods would also change as he tries to master Escanor's power, and this could lead to a more disciplined Naruto. His usual boisterousness might be toned down a bit as he becomes more aware of the power he holds and the potential consequences of misusing it.
Naruto could use Escanor's power to boost his physical attacks. For instance, when he throws a punch, it could be surrounded by the sun's energy, making it more powerful.
Some of his friends might be a bit more cautious around him. For example, Sasuke might be more on guard, as he has a history with the Uchiha and Madara's power is something he'd be very aware of. But Naruto would still try to keep their friendship intact.
Naruto would probably become more of an outcast in some ways. Since the Sharingan is an Uchiha - specific power, having it as a non - Uchiha like Naruto would make others suspicious. This could make him more distrustful of others and more reliant on his own new powers. He might also become more strategic in his battles, using the Sharingan's abilities to analyze his opponents better.
His relationships would also change. Some of his friends might be a bit wary of him now that he has such a powerful and somewhat feared ability. Naruto would have to work hard to show them that he's still the same Naruto. At the same time, he could form new alliances with those who are interested in his new power or who can help him understand it better. He might also be more isolated at times as he delves deeper into mastering the Sharingan, which would be a big change from his usually outgoing and social self.
Naruto might become more cautious. Guns are very different from ninja tools, and one wrong move could be fatal. So he'd have to think twice before acting impulsively, which is a big change from his usual head - first approach.
His character might become more confident, almost to the point of being cocky. He would know that he can handle any situation, so he might take more risks.
His fighting style would definitely change. He'd become more reliant on the weapon, which might make him seem more like a swordsman in addition to being a ninja. His confidence might also increase as he masters new techniques with Myrtenaster.
He'd be more cynical. Orochimaru's ways would make Naruto question the goodness in people.
If Naruto was adopted by Kakashi in a fanfic, his character would experience a significant shift. Firstly, he'd have a better understanding of self - control. Kakashi's calm demeanor would rub off on him. He'd be less likely to lose his temper easily. Secondly, Naruto's view of family would be different. He'd have a real family figure in Kakashi. This could make him more empathetic towards others who lack family. In terms of his ninja skills, he'd be more well - rounded. He'd learn to combine his natural talent with the refined techniques that Kakashi could teach him, which would in turn make his character more complex and multi - faceted.
Naruto would become much more ruthless. Jashinists are known for their brutal and sacrificial practices. So, Naruto might not hesitate to sacrifice others for his goals or the goals of the Jashinist cult he's a part of. His once sunny and optimistic personality would be clouded by the dark and violent nature of Jashinism.