One possible plot could be that Naruto, while on a strange mission, gets transported to Elsa's world. Naruto, being his adventurous self, tries to understand Elsa's powers and her fear of them. He might encourage her to face her fears in a more direct way, like he does with his own challenges in the ninja world. And they could team up to protect Elsa's kingdom from some unknown threat.
A possible plot might be that there is a prophecy in both the Naruto universe and the Frozen universe. It says that a union between a powerful shinobi and an ice queen will save both worlds from a great darkness. Naruto and Elsa are brought together by this prophecy. At first, they struggle to understand each other's cultures and powers. However, as they spend more time together, they develop a deep bond. They use their combined powers of ninjutsu and ice magic to fight against the approaching darkness that threatens to engulf their respective worlds.
Perhaps an evil ice mage from the Frozen world who has heard of Naruto's power and wants to steal his chakra to become all - powerful. This mage could be jealous of Elsa's natural ice powers and sees Naruto as a means to an end to get rid of her as well.
In a 'naruto x elsa frozen fanfic', it could start with Naruto being lost and finding himself in Arendelle. Elsa senses his strange energy. At first, there is conflict as the people of Arendelle are scared of Naruto. But Naruto shows his good heart. Elsa and Naruto then start to explore each other's worlds in a spiritual sense. They find similarities in their isolation. As they bond, a new enemy emerges, a sorcerer who wants to control both Naruto's ninjutsu and Elsa's ice magic. Together, they fight against this threat, with Naruto's courage and Elsa's grace.
It's really hard to say. It could depend on the situation. In a battle situation, Naruto's combat skills might make him seem more dominant. But when it comes to matters in Elsa's kingdom or dealing with her people, Elsa would be the more dominant one. Also, if they work together, they might share the dominance equally, each bringing their own strengths to the table and relying on each other in different ways.
It could be a character who has the power to absorb chakra and ice magic. Let's call him Zarak. Zarak wants to use the combined power of Naruto's world and Elsa's world to become invincible. He starts by causing chaos in both worlds, making the Hidden Leaf Village believe that Elsa is a threat and making Elsa think that Naruto and his friends are there to capture her. This way, he can keep them apart and continue his evil plan.
There could be. A lot of fan - fic writers like to create crossovers between different universes. Elsa from 'Frozen', the Creeper from Minecraft and Spiderman are all very popular characters, so it's possible that someone has written a story involving them. However, it might not be very common given how different their worlds are.
In a 'anna elsa x mother fanfic', the mother could be a central figure in resolving the conflicts between Anna and Elsa. Maybe she was lost long ago, but through some magical means, she comes back in a form to guide them. This could add a new layer of emotional depth to their story, as they deal with both the joy of having their mother back and the challenges of following her advice in a world that has changed since she was last there.
For Percy, his loyalty and sense of adventure can be emphasized. He could be the one to initiate contact with Elsa, seeing her as a new and exciting mystery. His skills in combat and his ability to think on his feet would come in handy when they face challenges together. For Elsa, her growth from a withdrawn and fearful queen to someone more open and trusting can be shown. Meeting Percy, who is so different from the people in her world, could be a catalyst for this change.
Harry Potter himself would be likely to interact with Elsa. Given his own experiences with unique powers and his role as a hero, he would be sympathetic to Elsa's situation. They could bond over their shared sense of responsibility and their ability to do things that others can't. Harry could also introduce Elsa to his friends and the world of Hogwarts.