He might seem more studious. Wearing glasses could give the impression that he's more into reading and learning new jutsu. So he could be seen spending more time in the library or with his sensei, trying to understand complex ninja techniques.
If the glasses are part of a new power or ability, Naruto might become a bit more cautious. He realizes that he has something valuable and that he needs to protect it. So he might be more strategic in battles, thinking about how to use his glasses - related power effectively while still maintaining his bold and fearless attitude that we all know and love.
He might become more self - conscious at first. Naruto is usually very confident, but wearing a dress would be something new and out of his comfort zone. So he could become a bit more reserved until he gets used to it.
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.
Naruto might become more calculating. Urahara is a very strategic person, and under his training, Naruto could start thinking more before acting. For example, instead of just rushing into a fight, he'd analyze the situation first.
Naruto might become more confident, bordering on cocky at times. The Super Saiyan 4 transformation comes with a lot of power, and with that power, he could start to believe he's invincible. But deep down, his core values of protecting his friends and the village would still remain. He might also become a bit more impatient, as the power coursing through him could make him eager to jump into battles quickly.
His once optimistic and determined personality would turn cynical. Instead of seeing the good in people, he would suspect everyone. For example, he would no longer trust his friends easily. His sense of humor would disappear, replaced by a cold and sarcastic attitude. He would become more secretive and withdrawn, not sharing his thoughts and feelings like he used to.
He might seem more brooding. The chains can give an air of mystery and make him look like he's carrying a heavy burden. So, he may be less of the carefree Naruto we know and more of a somber character.
It could have a nerdy or intellectual personality. Maybe it's always curious and loves to learn new things.
The plot could involve Bakugou getting a quirk - related eye injury during a battle. As a result, he has to wear glasses. His initial reaction is one of frustration because he thinks it makes him look weak. But as the story progresses, he realizes that the glasses are a symbol of his resilience. He trains harder and becomes an even more formidable hero, all while sporting his new glasses.
One common theme is trauma. Often, Naruto experiences some sort of extreme trauma that causes his personality to change. For example, in some fics, he witnesses the death of all his friends and becomes a cold and revenge - driven person.
Naruto might become more patient. Kami's training is likely to be intense and require a lot of concentration. So, Naruto would have to learn to be patient to master the new skills.