The story would take a different turn in terms of character development. Kimmimaro was mainly focused on serving Orochimaru and proving his worth through his strength. Naruto, however, is driven by his dreams of becoming Hokage and protecting his friends. So, if Naruto replaces Kimmimaro, the focus of the story would shift from loyalty to a dark master to more noble goals. This would also impact how other characters in the story view and interact with the character in Kimmimaro's place.
In such a fanfic, Naruto might replace Kimmimaro in a mission. Since Naruto is known for his determination and never - give - up spirit, he could complete the mission in a completely different way. He'd probably try to talk to the enemies first, to understand their motives, rather than just attacking like Kimmimaro might have. And his presence could inspire his teammates in a different way too.
The plot would take on a more action - oriented and heroic tone. Naruto is a hero at heart, always looking to protect the weak and fight for what's right. In contrast to Riser, he would actively seek out problems to solve and villains to defeat. His presence would also attract different kinds of antagonists, those who oppose his ideals of peace and justice, which would create a whole new set of storylines.
Well, in a fanfiction where Naruto replaces Itachi, the whole power dynamic in the story would shift. Naruto has his own set of powers and abilities like the Nine - Tails chakra. This would change how battles are fought. In Itachi's place, Naruto might be more open about his intentions and not keep so many secrets. He could inspire the Uchiha clan in a different way, perhaps leading them towards a more positive path rather than the path of revenge and secrecy that Itachi's actions led to.
Well, the whole dynamic of the Straw Hat crew would change drastically. Fem Naruto would bring her ninja skills, like shadow clones and chakra control. The crew might rely more on her for stealthy operations rather than Luffy's straightforward attacks. Also, her personality, which is a mix of determination and a bit of a tomboyish nature, would add a new flavor to the crew's interactions.
His relationship with Jiraiya would be different. Jiraiya trained Minato, but with Naruto replacing Minato, Jiraiya might train Naruto even more intensively from an earlier age. Naruto would also probably be more open with Jiraiya about his feelings and plans, as he's not as reserved as Minato.
Well, one possible outcome is that Naruto could change the course of many events. For example, he might deal with the Akatsuki in a very different way. Since Naruto has his own unique set of skills and a different personality compared to Minato. He is more brash and open - hearted, so his diplomatic approaches could be more direct and less stealthy like Minato's.
The dynamic between Poseidon and his son, Percy (in the original), would be completely flipped. Instead of a father - son relationship, they would be more like two separate entities with Poseidon now in Percy's role. Poseidon would have to face the same challenges Percy did, but without the advantage of Percy's unique experiences as a demigod growing up.
Well, if Naruto replaces Riser, there would be a huge shift in the story's dynamics. Naruto's strong sense of justice and his never - give - up attitude would likely change the way conflicts are resolved. He might use his ninja skills to handle challenges in a more direct and action - packed way compared to Riser.
The story would progress in a much different way. The battles would be more ninja - style. Instead of Luffy stretching to attack, Fem Naruto would use her jutsu. Maybe she'd use her transformation jutsu to deceive enemies or her summoning jutsu to call upon powerful creatures. The Straw Hat crew would need to adapt to her combat style as well.
A possible plot development could be that Naruto's connection to the Nine - Tailed Fox gives him an advantage in a situation where Shirou was at a disadvantage. For example, if there was a powerful dark force in the story, Naruto could use the Nine - Tailed Fox's power to fight it off, while Shirou might have struggled more. Also, Naruto's charisma could attract different allies compared to Shirou, and these new allies could bring in their own sub - plots and story arcs.