He would become more cynical. Orochimaru's influence would make Naruto question the values he once held dear in the village. His appearance might also change, with a darker look in his eyes and a more menacing aura.
Naruto's personality would take a significant turn. He'd be more distrustful of others, having been exposed to Orochimaru's world of manipulation. His sense of humor might disappear as he gets caught up in Orochimaru's dark plans. His relationships would also be affected. His friends would be confused and concerned about his new allegiance, and Naruto would have to deal with their reactions while still being loyal to Orochimaru in the fanfic, at least initially.
Naruto would likely become more secretive. Working for Orochimaru means being involved in a lot of underhanded activities. He would have to hide things from his friends. His fighting style might also change as he incorporates Orochimaru's techniques. He could become more ruthless in battle, less concerned about the well - being of his opponents as he focuses on achieving Orochimaru's goals.
He'd be more cynical. Orochimaru's ways would make Naruto question the goodness in people.
Naruto would likely be more cunning. Since Orochimaru is known for his devious ways, Naruto might inherit some of that. He could be more calculating in battles rather than just relying on brute force. However, he would still have his core of kindness. So, it would be an interesting mix of Orochimaru's slyness and Naruto's big - heartedness.
Naruto's morality could be somewhat skewed. Orochimaru has a very different view on right and wrong compared to Naruto. So, Naruto might start to question some of his previous beliefs. For example, he might be more willing to use dangerous or forbidden jutsus if it means achieving his goals. He'd also probably be more distrustful of others, as Orochimaru always has ulterior motives. This would be a big change from the Naruto who was always so quick to trust and befriend people.
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.
Naruto's character would likely become more cynical. Orochimaru's ways are full of deceit and self - gain, and Naruto, being around that, would start to question the ideals he once held. His usually bright and optimistic personality might be clouded with a sense of distrust and a more cut - throat attitude.
Naruto would become more cunning. Orochimaru is a very sly character, and his training would likely rub off on Naruto. Naruto would no longer be as straightforward in his battles and interactions. He might start to think several steps ahead, like Orochimaru does.
His character would likely become more conflicted. He has always been a positive and determined person, but being around Orochimaru would expose him to a lot of darkness. He might start to question his own beliefs and values. For example, he may become more ruthless in battle as he adopts some of Orochimaru's combat styles.
Naruto would likely become more secretive. Since Orochimaru is a very private and often devious character, Naruto might pick up some of those traits. He would probably keep things from his friends more often.
Naruto would likely become more secretive. Since Orochimaru's training methods are often not in line with Konoha's values, Naruto would have to hide what he's learning. He might also become more distrustful of others as Orochimaru could instill in him the idea that everyone is out to get him for his newfound power.
If Naruto was raised by Orochimaru in fanfiction, his relationships would be turned upside down. His friendships from the Leaf Village would be in jeopardy. Since Orochimaru is not one to value the kind of loyalty and friendship that Naruto's friends in the Leaf do, Naruto would have a hard time understanding and maintaining those relationships. He might even be hostile towards them, seeing them as obstacles in his pursuit of power. His relationship with the Hokage would also be a mess. Instead of looking up to the Hokage as a role model, he would probably view the position as something to be conquered or undermined, following Orochimaru's ideology of power - seeking.