He becomes more responsible. He can't just go on ghost - fighting sprees like before. He has a whole kingdom to think about.
When Danny Phantom becomes king in fanfiction, his character undergoes significant changes. He becomes more diplomatic. Instead of just reacting impulsively, he has to think about the consequences of his actions for the entire kingdom. His carefree attitude might lessen as he takes on the weight of leadership. He also becomes more empathetic towards different groups in the kingdom, whether they are the wealthy nobles or the poor peasants. He realizes that his decisions affect everyone, and so he has to be more inclusive in his thinking. Moreover, he might become more patient, as ruling a kingdom requires dealing with a lot of bureaucracy and different personalities.
Danny's relationships change drastically. He distances himself from his friends and family. He no longer values their opinions or support. Instead, he might see them as obstacles or even threats. His friendships with Sam and Tucker are strained as he starts to engage in activities that they find morally wrong, like using excessive force on other ghosts or humans who get in his way.
His character could become more detached from human emotions as he becomes a full ghost. He might start to think more like a ghost, with different priorities. For instance, he may focus more on ghostly politics or power struggles within the Ghost Zone.
He might become more noble. Archangels are often seen as noble and pure beings, so Danny could take on these traits. His sense of justice could become more absolute.
He might become more authoritative. As the Titan King, Percy would have to command respect and make tough decisions. He can't be as carefree as he was before.
He often becomes more withdrawn. Instead of being the outgoing hero, he might shy away from fighting ghosts due to the abuse he's suffered, which has led to his depression. His self - confidence is shattered, and he may doubt his abilities.
Jazz might become more impulsive. Since she's used to being in control as a human, the newfound freedom and powers of being a ghost could lead her to act without thinking as much. Also, her relationships with her family and friends would change. She would have to find new ways to interact with them, especially Danny. They would now share a unique bond as both being part - ghost.
Naruto's character would change in several ways. Firstly, he would become more strategic. As a lord, he has to plan for the long - term development of his land, which requires thinking ahead. His impulsiveness would be curbed as he has to deal with the complex web of politics. He would also grow in terms of wisdom. He would learn from his experiences and the advice of his advisors. His charisma would be used in a different way. Instead of just inspiring his ninja comrades, he would need to inspire all his people. His sense of justice would expand from individual cases to the overall fairness of his domain, and he would strive to make his territory a model of a just society.
He becomes more serious. Gone is the Naruto who is always cracking jokes.
His personality might become more innocent. As a kid, he's not as cynical as when he was a teen. He might be more open - minded and trusting.
He becomes more authoritative. Harry, who was once just a student and a hero, now has to make decisions for an entire kingdom. So he has to be more assertive and confident in his actions.