His personality could also become more complex. On one hand, he still has that core of kindness from his original self. But on the other hand, the neglect and Kaguya's training might make him a bit more calculating. He'd have to be, to survive in a world that didn't care about him before. He might use his newfound skills not just for the village but also for his own self - preservation and to prove his worth to those who once overlooked him.
Naruto would likely become more independent. Since he's being neglected, he has to rely on himself. He might become a bit more of a lone wolf at first, not trusting others easily as he feels his own family has let him down. But this could also make him stronger in the long run. He'd have to figure out things on his own, like how to control the Nine - Tails' power without much family support.
Naruto's training would become more personalized. Tsunade, being a Sannin, has a wealth of knowledge. She might focus on Naruto's weaknesses more intently. For example, if Naruto still has issues with chakra control, Tsunade could design specific exercises just for him. His training could also include more strategic elements, as Tsunade is experienced in battle tactics.
At first, it might be one of suspicion. Naruto would be wary of Kaguya's power and her past as a sort of villain. But as they face challenges together, they could start to respect each other. Naruto might see the good in Kaguya that was buried under her past actions, and Kaguya could come to admire Naruto's tenacity and his strong sense of justice.
His personality would likely be more reserved at first. Tsunade is a no - nonsense type, and Naruto would have to learn to be more composed. He might be less impulsive in his actions.
Naruto would likely become more independent. Without the support of his family, he'd have to rely on himself. So he might grow up faster and be more self - sufficient in areas like cooking, cleaning, and taking care of his basic needs.
At first, Naruto would be very hurt by his family's neglect. But as he discovers his godlike powers, he would start to focus on self - improvement. He might become a bit of a loner, training hard to master his powers. As time passes, he would become more empathetic towards others who are also neglected or outcast. His character would transform from a boy seeking family approval to a powerful individual who defines his own worth and helps others do the same. For example, he could start training other outcast kids in the village, sharing his knowledge and power with them.
His understanding of the ninja world would expand. He might become more cautious and calculating in battles, as Kaguya's training could expose him to different strategies. Also, he could develop a more solemn side to his personality, considering Kaguya's own complex nature and the heavy knowledge she might share.
Kenshin's training might make Dark Naruto more disciplined. His impulsive and dark nature could be toned down as he learns Kenshin's ways.
Naruto's personality could become more reserved. If he were in a class with more serious students, he might feel the need to tone down his exuberant self. He'd still be determined, but might show it in a more subdued way.
Perhaps he's been influenced by someone who gives him bad advice. For example, if someone tells him that natural talent is enough and training is overrated. Also, he could be dealing with some personal problems, like a conflict within his family or among his friends that takes up all his time and mental energy, causing him to neglect training.