In some fanfictions, it could be related to an ancient bloodline limit that was dormant in Naruto all along. His Uzumaki heritage might have some connection to water - related powers, and through some sort of emotional or physical trigger, he is able to access and control the ocean.
He could face opposition from other characters who fear his new - found power. Villains might target him to either steal his ability or stop him from using it. Also, his friends might be worried about how this power will change him, which could create emotional challenges for Naruto.
Naruto's character would also develop relationships with the One Piece characters. He would bond with Luffy over their shared sense of adventure and loyalty to their friends. His ocean - controlling powers would make him a valuable ally to the Straw Hat Pirates. He might start to dress more like a pirate or incorporate One Piece - style elements into his appearance. His personality would still retain his Naruto - like exuberance and determination, but would also be shaped by the new experiences and challenges in the One Piece world.
In some fanfictions, his power develops as he forms new alliances. If he teams up with a water nymph or a merman who has different knowledge about the ocean, he can learn new ways to use his power. His emotional state can also play a role. If he becomes more in tune with his love for the ocean and its inhabitants, his power could grow stronger, allowing him to do things like create more complex oceanic structures or calm larger areas of stormy seas.
Foxes are quite common. Given Naruto's connection with the Nine - Tailed Fox, it makes sense that in fanfiction, he might be able to control other foxes. They can be used for scouting or as distractions in battles.
One interesting plot twist could be that Percy's control over the ocean is suddenly taken away by a dark magic spell. Then he has to find a way to get it back, perhaps by going on a quest to find a long - lost artifact or by making a deal with a mysterious sea - dwelling being. Another twist might be that the ocean starts to rebel against Percy's control. The sea creatures turn on him, and he has to figure out why and how to fix it.
One idea could be that Naruto gains some new power or jutsu that allows him to control Anko's actions in a non - malicious way. Maybe it's a form of genjutsu that he accidentally uses on her during a training session, and then has to figure out how to reverse it.
"I recommend the novel One Piece: The Overlord." The protagonist Karna mastered the power of ice, lava, and light, becoming the strongest general in the navy. He chased Roger, fought against White Beard, captured the Golden Lion, and fought for power in the pirate world. I hope you like this fairy's recommendation. Muah ~😗
In a 'Naruto controls snow' fanfiction, it could be that Naruto is cursed by an enemy. As a result, his chakra is somehow linked to snow. At first, he struggles to control this new power, but with the help of his friends and some intense training, he masters the ability to control snow and turns it into a powerful weapon against his foes.
In the fanfiction where Naruto controls the Tesseract, it could change the power dynamics completely. Naruto is already a powerful ninja, but with the Tesseract, he could become near - invincible. He might be able to use the Tesseract's space - bending abilities to surprise his enemies in battle. For example, he could suddenly appear right in front of them or make them disappear into another dimension. Also, he could potentially use it to heal wounds or revive the dead, if he discovers all of its powers, which would make him not just a hero in his own world but maybe in the entire multiverse of the fanfiction.