Naruto's personality could shift towards being more nurturing. He has always cared about his friends, but now he has a more hands - on way to show it. He'd be more in tune with the emotional well - being of those around him, not just their physical safety. For instance, he'd be more likely to sit and listen to someone's problems while also treating their wounds. And he'd probably be less quick to anger, understanding that a calm state of mind is important for his new role.
In this fanfiction, Naruto's personality would see some significant changes. His new role as a medic would force him to be more responsible. He can't afford to be as reckless as before. He would also become more empathetic. He has to understand the pain and suffering of his patients. This would make him a better leader in the long run. He would be able to make decisions that take into account the well - being of all his people, not just their combat capabilities. He'd also likely become more studious, as medical knowledge requires a lot of learning and research.
He might become more patient. As a medic, he has to be careful and take his time with patients, which is different from his impulsive fighting style.
His confidence might increase even more. Naruto was always confident as a ninja, but as a sorcerer, he has new powers at his disposal. He would feel even more capable of taking on challenges. For example, if he faces a powerful sorcerer enemy, instead of being intimidated, he would be eager to test his new abilities.
Naruto's usually impulsive personality might become more calculating as a puppet master. He would need to think ahead when using puppets in battle, so he'd be less likely to rush into things.
Naruto's personality might become more reserved in some ways. As Hokage, he has to represent the village in a more solemn and diplomatic manner. He can't be as carefree as he used to be. For example, in international meetings, he has to think carefully about his words and actions.
Naruto's personality would likely become more patient. As a medic nin, he would need to be calm and focused during treatments. His impulsiveness would probably decrease as he realizes that any hasty move could harm a patient. He might also become more empathetic, understanding the pain and suffering of others on a deeper level.
His confidence would skyrocket. Gilgamesh is extremely self - assured, and Naruto, if influenced by him, would become even more so. He'd be more outspoken about his own abilities and less likely to doubt himself in tough situations.
Naruto may also become more solitary. Sparda often fought alone, and Naruto, influenced by this, might start to distance himself from his friends at first. However, he would still have that underlying loyalty and would eventually find a way to balance his new - found independence with his relationships.
His personality might become more cautious. Since he has a greater responsibility as a guardian, he can't be as reckless as he was sometimes in the original Naruto series.
His personality might become more withdrawn. As a lich, Naruto could be feared by others, and this might make him more hesitant to interact with people. He was always so outgoing before, but now he might keep to himself more.
He might become more patient. As a dad, he has to deal with his kids' tantrums and mistakes, so patience is key.
In this fanfiction scenario, Hiccup's personality would be a mix of his old self and new vampire traits. He'd still be the intelligent and creative Hiccup we know. But his confidence could grow in a different way. Instead of relying on his inventions and dragon - training skills, he'd start to rely on his vampire powers. This could make him a bit more cocky at times. At the same time, he'd be more in tune with the night and solitude, which could make him seem more mysterious to those around him. His relationship with Toothless would also be affected. He might worry that Toothless won't accept him now that he's a vampire, but in reality, Toothless would probably still be his loyal friend.