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.
Naruto's character would change in several ways. Firstly, his loyalty would shift. Instead of being solely devoted to Konoha, he would be loyal to the Jashinist cause. His sense of justice would be warped. The Jashinist ideology might make him believe that the strong have the right to prey on the weak, which is the opposite of what he was taught in Konoha. Socially, he would become an outcast. His friends would be confused and scared of him. His appearance might change to reflect his new beliefs, with darker clothing and maybe some symbols associated with Jashinism. His fighting style would also change, incorporating more of the Jashinist's brutal and unorthodox techniques, making him a more feared and unpredictable opponent.
If Naruto becomes a hunter nin in the fanfic, his sense of justice could become more complex. As a hunter nin, he'd be exposed to different shades of right and wrong. He might not be as quick to judge someone as he used to be. Instead of simply seeing enemies as bad guys, he'd start to understand the reasons behind their actions. This could make him more empathetic but also more calculating in his approach to dealing with threats. Also, his normally boisterous nature would likely be toned down to avoid attracting unnecessary attention.
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.
He'd become more cynical. Naruto is known for his positive outlook, but as a gangster, he'd see the world in a darker light. His trust in others would be severely diminished.
His character would likely become more brooding. The new half - demon nature might bring out a darker side of him. He would be more solitary as he tries to understand his new self.
He would likely become more ruthless. As a Sith Emperor, Naruto would have to make tough decisions that go against his usually kind - hearted nature. For example, he might have to sacrifice some of his friends or allies for the greater good of his empire.
His relationship with Sasuke would likely be very different. Sasuke might be more in awe of Naruto, but also feel a greater sense of distance. They would no longer be just rivals, but there could be a new power dynamic where Naruto is in a much higher position.
His relationships would change a great deal. With Sasuke, there might be a new level of respect. Sasuke would see Naruto in a whole new light, not just as a rival but as someone truly powerful. His friends like Sakura and Kakashi would be more in awe of him. They might feel a bit of distance at first, but Naruto would try to bridge that gap. His enemies would be either terrified or would try to use his new status to their advantage.
If Naruto became a succubus in fanfiction, his relationships would change significantly. His friendship with Sasuke, for instance, would face a new dynamic. Sasuke, who is often focused on power, might view Naruto's new form as either a threat or a potential source of power. Naruto's relationship with Sakura could also be affected. Sakura might initially be shocked and unsure how to interact with him. She could be worried about Naruto's new nature and how it could impact his well - being. And Naruto's relationship with Kakashi would require some adjustment. Kakashi would need to understand Naruto's new abilities and how to help him control them while still maintaining their mentor - mentee bond.