He could become more cautious at first. Since it's a new world, he doesn't know what to expect, so he might hold back his usual boldness.
Well, initially, Naruto might be a bit more reserved as he tries to figure out the new world. However, as he starts to make friends or find a purpose in this new place, his positive and energetic side could come back in full force. He might also become more diplomatic if the new world has complex political situations. His experience in his own world with different ninja villages could give him some foundation for handling such matters, but he'd still have to learn a lot about the new world's politics.
Naruto's personality might become more adaptable. He's always been able to grow and change in his own world, but in a new world, he'd be forced to be even more flexible. He might also become more introspective as he compares the values of his old world with those of the new one. For instance, if the new world has a different view on friendship or loyalty, it could make him think more deeply about his own beliefs. And if he faces a lot of rejection in the new world, it could make him a bit more guarded, but at the same time, his determination to prove himself could also grow stronger.
Naruto could become more curious. A different world means new things to explore, new cultures, and new powers. He would be eager to learn about everything, which could make him seem more inquisitive than he already is. He might start asking a lot of questions to understand how this new world functions.
Naruto's personality could change in several ways in this fanfiction. Firstly, he might become more impatient. The Super Saiyan Rose power is extremely powerful, and he may want to use it right away to solve problems. Also, he could become more protective. Since he has this new and powerful form, he would feel a greater responsibility to protect his friends and the village. However, he would still retain his core values of friendship and loyalty. He might just be a bit more headstrong when it comes to defending those he cares about.
He may find that his ninja skills are either very useful or completely ineffective in the new world. If the new world has a different form of combat, Naruto would have to adapt quickly. Also, he could encounter new forms of nature energy or magic that he has to learn to control. There might be a love interest for Naruto in this new world as well, which could add a whole new layer of complexity to the story.
If Naruto is pretending to be a girl, his normally boisterous and energetic personality might become more subdued at first. He'd have to be more careful with his actions and words to fit the female role. For example, he might not be as loud or impulsive as he usually is.
He might become more serene. Since Sadaiam might have a calmer and more nature - centered philosophy, Naruto could adopt some of that. He'd be less impulsive in his actions and more contemplative.
In such fanfiction, Naruto's personality could be a mix of his old self and a new, more complex version. He would still be the determined and kind - hearted Naruto at heart. However, the power of the hollow mask might make him more secretive. He might keep things from his friends and mentors for fear of them trying to take the mask away. This internal conflict between his old and new self could be a major part of his character development.
Well, first of all, Naruto's usually carefree and positive personality could be tempered with Ace's more complex emotional side. Ace had a lot of baggage related to his family and his identity as a pirate. So Naruto might start to have some internal struggles about his place in the world. He could become more reserved in some ways, like not being as quick to share his feelings. At the same time, his loyalty would become even more intense. He would be willing to go to greater lengths for his friends and the village, almost to the point of self - sacrifice, which was a big part of Ace's character. And his view of power might change too. Instead of just seeing it as a means to protect and be recognized, he could see it as a way to uphold a certain code, like Ace's code among the pirates.
His personality could also become more calculating. Since the Sannin were known for their strategic thinking, Naruto would start to think several steps ahead. He might be more secretive about his plans too. He would no longer be the open - book Naruto. Instead, he would be like Jiraiya, who had his own secrets and plans. He would also show more patience, which is something he lacked before but the Sannin had in abundance when dealing with complex situations.
Naruto might become more reserved. Growing up under Zeltrech, he could be exposed to a more sophisticated and perhaps less rowdy environment compared to Konoha. So instead of his usual loud and brash self, he could develop a more calm and calculated side.
He might become more patient. As a dad, he has to deal with his kids' tantrums and mistakes, so patience is key.