If Naruto becomes a Hunter Nin in fanfiction, his personality would change significantly. He'd be more calculating. His usual impulsive nature would have to be toned down because one wrong move as a Hunter Nin could mean disaster. He might also become more solitary, used to working alone in the shadows rather than in a team. His sense of humor might also be more subdued as he takes on this serious and dangerous role.
Naruto's personality could shift towards being more reserved. As a Shinigami, he has to deal with the weight of handling souls and the concept of death. This could make him think twice before acting impulsively like he used to. He may also develop a more empathetic side towards those who are about to die or have lost loved ones, as he now has a closer connection to the afterlife.
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 personality might become more aggressive. The demon nature could bring out his primal instincts, making him less patient and more prone to anger.
He might become more cunning. Just like a fox, he would be able to outwit his enemies more easily. He could use trickery and deception in battles, setting traps for his opponents.
He becomes more decisive. As a leader, Naruto can't afford to be indecisive like he sometimes was in his youth. He has to quickly make choices that affect the whole village or group he's leading.
He might become more patient. As a dad, he has to deal with his kids' tantrums and mistakes, so patience is key.
He might become more cynical. Instead of seeing the good in people like he used to, he starts to suspect everyone's motives. For example, he may no longer trust his friends easily.
Naruto's personality might show a more serious side. Wearing a suit could make him feel more responsible, like he has to represent the Hidden Leaf in a proper way. So he'd be less likely to crack jokes and more focused on the task at hand.
His life changes drastically. Firstly, his social status within the village would be very different. People might fear him initially. His relationships with friends like Sasuke and Sakura would also be affected. They would have to adapt to this new Naruto. His training regime would change completely as he has to learn to control his new bijuu form. He might have to isolate himself at times to avoid causing harm.
Naruto's character would change in several ways. Firstly, he would become more strategic. As a lord, he has to plan for the long - term development of his land, which requires thinking ahead. His impulsiveness would be curbed as he has to deal with the complex web of politics. He would also grow in terms of wisdom. He would learn from his experiences and the advice of his advisors. His charisma would be used in a different way. Instead of just inspiring his ninja comrades, he would need to inspire all his people. His sense of justice would expand from individual cases to the overall fairness of his domain, and he would strive to make his territory a model of a just society.