Sasuke might be initially suspicious. Given their complex relationship, Sasuke would likely want to know the real reason behind Naruto's identity change. But once he understands the motives, he might respect Naruto's decision if it's for a good cause.
Perhaps he would change to Naruto Storm. 'Storm' can represent his powerful and sometimes tempestuous nature. In the series, Naruto has shown great strength and determination that could be likened to a storm, which is both destructive and at the same time a force of change.
His character would become more secretive. Instead of being the open - hearted Naruto we know, he'd have to keep things to himself. For instance, he couldn't share all his thoughts and experiences with his friends right away.
In some fanfictions, Harry might change his identity to protect his friends. For example, if Voldemort was specifically targeting those close to Harry, he could change his look and name so that his friends would no longer be in danger. He could also change his identity to study dark magic secretly in order to better understand Voldemort's power and find a way to defeat him without putting others at risk.
The following are a few recommendations for novels where the male lead changes his identity: " Top Grade Demon Overlord ": The male protagonist has peerless martial arts and is a top grade demon who can defeat all kinds of unconvinced people. Although he wasn't an assassin or a soldier king, it was still in line with the plot of the male protagonist being a top master at the beginning and then returning to the city to fight. 2. 'Crazy Son-in-law's Rebirth...': The specific plot of this novel was not provided, but according to the title, it could be speculated that the male lead might change his identity and start over. 3. The female protagonist is bound to the Quick Wear System and wants to collect the power of the origin to save the Celestial Thearch who was seriously injured by the Demon Lord. In a certain world, the female protagonist sent the blackened male protagonist out, and the male protagonist changed his identity and became an actor. In the story, there would be a plot where the male lead was sick. 4. " Substitute for the Beloved Concubine ": It tells the story of a female lead and her biological sister switching identities. The male lead misunderstood the identity of the female lead, but in the end, he found out that he liked the original female lead. 5. " Exclusive Memory Loss: Loyal to the Nation's Husband ": The specific plot was not provided, but based on the title, it could be speculated that the male lead might change his identity.
His confidence could turn into over - confidence bordering on arrogance. As a villain, he might think he is above everyone else and that his way is the only right way. He would no longer listen to advice or consider the consequences of his actions on others, believing that he can handle any situation on his own, no matter how dangerous or unethical.
Another reason could be a personal journey of self - discovery. Naruto might feel that his identity as the hero of the village has become a burden or a limiting factor in his growth. Changing his identity could allow him to explore new aspects of himself, away from the expectations and responsibilities that come with being Naruto Uzumaki.
Clothing changes can also represent his emotional state. If he's wearing something more somber and dark, it might indicate a period of self - reflection or dealing with a difficult situation. For example, after a major battle where he loses a friend, he could change into all - black clothes as a sign of mourning.
It could also be due to a prophecy or some sort of spiritual guidance. In the Naruto universe, there are often prophecies that guide the characters' actions. A prophecy might suggest that changing his name would bring about some great change or power. For instance, if there was a prophecy that a new name would help him unlock a hidden power or unite different ninja clans under a new banner.
Maybe a plot where Naruto's change in gender affects his relationships. His friends like Sasuke and Sakura might react in different ways. Sasuke could be more protective, or Sakura might see her as a new kind of rival or friend. Also, Naruto's relationship with his mentor Kakashi could change as Kakashi has to adapt to training a female ninja with Naruto's unique abilities.