Well, he might have to learn how to act like a prince. That could include things like proper speech and manners.
Sure. In some fanfictions, Naruto's secret princely status could be a part of a much larger plot. For example, his being a prince could be the key to resolving a long - standing conflict in the ninja world. Maybe his real family was royalty from a far - off land, and he has powers or responsibilities that come with that title which he was unaware of until certain events unfold.
In fanfiction, if Naruto secretly married Anko, it could lead to some interesting character developments. Naruto might become more protective of Anko, and Anko could soften Naruto's more impulsive side. Their relationship could also bring new alliances and rivalries within the village, as different characters react to their union. It could be a great opportunity for the fanfic writer to explore different aspects of the Naruto world and its characters.
In a fanfiction where Naruto secretly has the Rinnegan, he would become an even more formidable force. His combat abilities would skyrocket. He could potentially use the powers of the Rinnegan, like the Six Paths techniques, in addition to his existing Sage Mode and Nine - Tails chakra. This would make him a major threat to any enemy. He might be able to travel between dimensions more easily and have better control over life and death, just like Madara and Sasuke did with their Rinnegan.
Naruto would likely become even more powerful. With the Sharingan, he could copy jutsus more easily, which would be a huge advantage in battles. He might also gain some of the Uchiha's unique abilities like seeing through illusions better.
Well, it could start with Naruto and Kakashi realizing they have a special bond that goes beyond their normal relationship. They decide to get married in secret. As the story progresses, they might face difficulties like how to handle their different responsibilities in the village. Naruto is still young and has his own dreams and goals, while Kakashi is an experienced ninja with his own set of duties. Also, they would have to be careful not to let their secret slip, especially around people like Tsunade who might not approve. Their marriage could also be a source of strength for them, as they support each other through various ninja missions and personal struggles.
He might face internal conflict. Naruto has always been an open and honest person, so keeping such a big secret could go against his nature. This could lead to him struggling with his conscience. Also, he would need to balance his normal life with his secret Hokage duties without raising suspicion. For instance, he can't always disappear suddenly to attend to Hokage business without people getting curious.
If Naruto were Kisame's apprentice in a fanfiction, Naruto would be exposed to a completely different set of ninja ethics. Kisame was part of Akatsuki, an organization with its own motives and values. Naruto would probably have to hide this new relationship from his friends in Konoha at first. He would learn Kisame's signature techniques, such as Samehada's abilities. His personality might change a bit, becoming more reserved and calculating like Kisame in some situations. This would cause a lot of internal conflict for Naruto as he tries to reconcile his new self with the old Naruto that his friends know and love. There could also be some really interesting fight scenes where Naruto uses his newly acquired skills against his old enemies or even against some of Kisame's former comrades.
A fanfiction of Naruto secretly dating Ino could start with them gradually realizing their feelings for each other. Maybe they start off as just friends who train together sometimes. But then, they find themselves looking forward to those training sessions more and more because of each other. As they start dating secretly, they have to deal with the secrecy itself. They might communicate through secret codes or signals. There could be a sub - plot where Ino's father, who is quite strict, starts to suspect something is going on. And Naruto's relationship with the Hokage might also come into play as he tries to keep his new relationship under wraps while still fulfilling his duties as a ninja.
Maybe it's a powerful enemy from outside the village who has infiltrated the bingo book system. They see Naruto as a major threat to their plans and so secretly added him to the book, so they can send their minions to take him out without raising too much suspicion.
In a fanfiction, Sakura and Ino fighting over Naruto could lead to some intense verbal exchanges. Maybe Sakura would bring up how she has been on more missions with Naruto, while Ino might counter with how she has a deeper understanding of Naruto's emotional side. It could also involve some petty rivalries like competing over who gets to sit next to Naruto during team meetings in the fan - made story.