If Naruto was adopted by Orochimaru in fanfiction, his abilities would be a mix of the traditional Uzumaki power and Orochimaru's twisted ninjutsu. Firstly, his Rasengan might be modified. Orochimaru could add elements of his own chakra manipulation to it, making it more deadly. Secondly, Naruto's ability to sense chakra could be enhanced in a way that benefits Orochimaru's goals. He could be trained to detect hidden enemies or chakra sources for Orochimaru's schemes. Moreover, Naruto might develop some sort of immortality - like ability similar to Orochimaru's, but with his own Uzumaki twist. This could involve using his chakra to regenerate at an extraordinary rate, but at the cost of some moral or physical side - effects.
His abilities would likely take a very different turn. Orochimaru could introduce him to some dark and powerful chakra - based techniques. Naruto might learn to manipulate his chakra in more insidious ways, perhaps using it to control others or for stealth attacks.
Naruto's character would change a great deal. He would be exposed to Orochimaru's world of experimentation and dark magic. This might make him more cynical about the ninja world. Also, he would have to adapt to Orochimaru's strict and often cruel training methods. As a result, he could become more introverted and less trusting of others. His once open - hearted nature might be replaced with a more guarded one.
His relationships with his old friends would be different. Some of his friends might be distrustful at first. For example, Sasuke might see Naruto's new situation as a betrayal of their shared experiences. However, over time, if Naruto could prove that he was still the same person at heart, they might reconcile. With Orochimaru as his adopted father, Naruto would also form new relationships within Orochimaru's circle. He could meet some of Orochimaru's former subordinates who might now be on a more positive path, and they could become comrades or even friends.
His character could become more self - assured. Tsunade's belief in him would boost his confidence further. He might become more strategic in combat, learning from Tsunade's battle - hardened experience.
Naruto's character would develop in a more complex way. He would be influenced by Kyuubi's wisdom and power. Kyuubi could teach Naruto about the true nature of power and how to use it responsibly. This would make Naruto more mature at a younger age. He might also be more introverted as he would be spending a lot of time with Kyuubi, learning from it. But at the same time, he would still have that underlying kindness and determination that is characteristic of him. He would just have a different way of expressing it and using it to achieve his goals.
If Naruto was adopted by Gato in fanfiction, his character would face a huge transformation. At the start, he could become more withdrawn and distrustful because of Gato's cruel ways. However, Naruto has always been a fighter. So, he would gradually find ways to resist Gato's bad influence. His experience with Gato could also make him more understanding of the hardships that people like Gato's victims face. This would make him more empathetic and determined to make the ninja world a better place once he breaks free from Gato's hold.
His character development would be a rollercoaster. He'd start to question his old values as he's exposed to Maleficent's dark world. However, he could also try to reform Maleficent in some ways, leading to a tug - of - war between good and evil within himself. He might develop new skills and a more mysterious aura around him.
Naruto's character would likely develop a stronger sense of family loyalty. Growing up in the Uchiha clan under Fugaku's care, he'd be immersed in a culture that highly values family. He might also become more secretive, as the Uchiha often keep their cards close to their chest. This would be a big change from the open - book Naruto we know. Additionally, he could gain a more nuanced understanding of power, since the Uchiha are known for their powerful Sharingan and thirst for strength.
Naruto's development would be interesting. Mei's tough - love approach might make Naruto more independent. He would no longer have the same support system as in Konoha. This would force him to rely on his own instincts and grow as a ninja in different ways.
His character would become more brooding perhaps. Growing up in the Uchiha environment could make him more in tune with their emotions and vendettas.
If Naruto was adopted by Yugao, his character would change significantly. Yugao is a very different kind of ninja compared to the people Naruto has been around. He would start to value the art of secrecy more. His emotional growth would also be different. Yugao could offer him a more stable and nurturing environment, which would help him deal with his inner demons better. He might become more of an introverted ninja, focusing on the quality of his work rather than seeking constant attention like he used to. Also, he would learn different combat techniques from Yugao that would make him a more versatile fighter.