Perhaps in this 'immortal naruto fanfiction', Naruto uses his immortality to master all the ninja arts to an even greater extent. He could then pass on his vast knowledge to future generations, changing the way ninja training is conducted in the Hidden Leaf.
In some cases, the 'immortal naruto fanfiction' might explore how Naruto's immortality affects his relationships. For example, he may have to constantly keep his immortality a secret from some people, or he might find new love interests over the centuries as he watches his original loved ones age and pass away.
One interesting idea could be Naruto exploring eternal life while still protecting the Hidden Leaf. He might face new challenges as he outlives his friends and has to deal with the loneliness that comes with immortality.
Well, in some 'naruto himawari immortal fanfiction', one interesting idea could be Himawari's exploration of her newfound immortality. She might use it to protect the Hidden Leaf Village in ways that others can't. For example, she could take on extremely dangerous missions without the fear of death.
One interesting idea could be the concept of an immortal OC (original character) interacting with the well - established Naruto universe. For example, their immortality might lead to unique relationships with the mortal characters. They could have witnessed countless historical events in the Naruto world and thus possess a wealth of knowledge that others don't. This could potentially change the course of the story as they might use this knowledge to influence the actions of the main characters like Naruto or Sasuke.
One interesting idea could be the combination of Naruto's ninja abilities with RWBY's unique combat styles. For example, Naruto's shadow clone jutsu might be used in creative ways in the RWBY universe, like having clones perform different team maneuvers simultaneously. Another idea could be the exploration of immortality in the context of both worlds. How would an immortal character interact with the challenges and power dynamics in Naruto and RWBY? It might also involve crossovers of characters' relationships, like how Naruto's friends would get along with RWBY's team members.
One interesting idea could be Naruto achieving a new level of power that makes him seem like an immortal god. For example, he might gain the ability to control time, which is a very cool concept in fanfiction. It could add a whole new layer of complexity to his battles and relationships.
One idea could be that Naruto and Sasuke discover a hidden ancient jutsu that grants them immortality. They then use this newfound power to protect the ninja world from threats that are beyond normal shinobi capabilities. For example, they might face off against an otherworldly demon that is immune to normal attacks.
One idea could be Naruto being immortal and crossing over into the world of Harry Potter. He could use his ninja skills to navigate the wizarding world, like using his shadow clone jutsu to attend multiple classes at Hogwarts. Another plot could be in a Final Fantasy crossover, where Naruto's immortality makes him a key figure in a battle against a powerful, world - destroying entity. His never - ending life gives him the time to master different magics and skills from the FF universe.
Well, he could cross over into a post - apocalyptic world as an immortal. Naruto would use his ninja skills to help the survivors, but his immortality might cause some fear among them at first. Or perhaps he crosses into a world of steampunk technology. His immortality gives him an edge in exploring this new and dangerous world filled with mechanical contraptions and power - hungry villains.
One idea could be a story where a character discovers they have an unknown immortal bloodline that gives them the power to heal rapidly. For example, they could be in the middle of a battle, get seriously injured, but then their bloodline kicks in and they're back on their feet in no time, surprising their enemies.
One idea could be that the Naruto characters discover a hidden realm where the earthbound immortals live. They have to learn the immortals' ways to gain new powers and save the ninja world from a new threat.
Another plot could involve a character from Blade of the Immortal being transported to the Naruto universe. This character could be an enemy at first, but then as they learn about Naruto's world and his ideals, they become an ally. They could teach Naruto some unique fighting techniques with the Blade of the Immortal.