Naruto may initially be in a state of confusion and conflict when he leaves with them. However, as they face challenges together, he could become more adaptable and street - smart. He would learn how to deal with situations in a more underhanded way, which is something Kisami and Itachi are more accustomed to. Kisami could gradually become more empathetic under Naruto's influence. Itachi might start to trust Naruto more and share his knowledge about the Uchiha clan and its secrets, which could have a profound impact on Naruto's view of the ninja world.
Naruto's character could develop in terms of his understanding of different moral compasses. Kisami and Itachi have their own set of values which are very different from Naruto's. By being with them, Naruto might question some of his own beliefs and grow from that self - reflection. Kisami might develop a sense of loyalty towards Naruto, which is new for him as he has always been more self - serving. Itachi could find in Naruto a new reason to fight for a better future for the ninja world, leading to a change in his usually stoic and secretive demeanor.
One possible plotline could be that Naruto is somehow tricked into leaving with Kisami and Itachi. Maybe they convince him that there is a greater threat that only they can help him face. Along the way, Naruto might start to learn more about their motives and the secrets of their pasts. He could also be in a position where he has to use his own skills and values to influence them.
Potential character development for Naruto could be that he becomes more adaptable. Serving Orochimaru would put him in situations he's not used to, forcing him to think on his feet. He may also develop a darker side, as Orochimaru's influence seeps in, but at the same time, he could become more determined to uphold his own values. As for Orochimaru, he might start to respect Naruto's tenacity and might even consider changing his ways a bit, or at least re - evaluating his plans in light of Naruto's presence.
For Naruto, he would have to grapple with the fact that he is fighting his former friend. This could make him more solemn and determined. He might develop a darker side as he realizes the seriousness of stopping Sasuke. For Sasuke, he could start as overconfident in his power but as Naruto keeps pushing him back, he could become more desperate and start to question his own motives.
For Naruto, he might gain new combat skills influenced by Matatabi. His fighting style could become more fluid and unpredictable, like Matatabi's nature. Matatabi could start to show more compassion. Maybe through Naruto's positive influence, it begins to care more about the humans and the ninja world in general. This would be a big change for a tailed beast.
He may develop a deeper understanding of the balance between power and control. With the Wabisuke in his possession, he has to learn how to use its power without losing himself. This could lead to him growing in wisdom and self - restraint. He might also become more isolated as he tries to master the weapon on his own at first, but then later realize the importance of his friends' support and grow closer to them in a new way.
Sakura could develop a more reckless side. Usually, she's quite level - headed, but in this fanfiction, she might start making hasty decisions that put herself and others at risk. This would be a big change from her normal cautious self.
Naruto could develop more patience and strategic thinking. Working with Ino, who is more calculated, and Kiba, who has a different approach to combat, would force him to think before acting. Ino might become more confident in her physical abilities as she trains with Naruto and Kiba. Kiba could learn to be more empathetic as he sees the different ways Naruto and Ino handle difficult situations.
A significant development could be in their relationship. As teammates, they would spend a lot of time together. This could lead to Naruto realizing Hinata's feelings for him in a more profound way. And Hinata would see Naruto in a different light, not just as the boy she has a crush on, but as a reliable teammate. This could lay the foundation for a deeper, more equal relationship between them.
Naruto might develop a new sense of identity. In Kiri, he's not just the Konoha hero. He has to re - establish himself, which could lead to him growing in maturity and self - awareness. He may also become more stealthy as Kiri often values secrecy in its ninja operations compared to Konoha's more open - minded approach in some aspects.
Naruto could develop a darker side to his personality. Since Orochimaru is known for his dark jutsu and unethical practices, Naruto might be influenced. But at the same time, his core values of protecting his friends and the village could be strengthened as he realizes he needs to be strong enough to resist Orochimaru's negative influence. Orochimaru might become more interested in Naruto's potential for good rather than just using him for his own evil plans.