Another theme is the exploration of different worlds. The Naruto universe is very different from the Bleach universe. Fanfics often explore how characters react when they are exposed to the new environment, rules and cultures of the other universe. For instance, a Soul Reaper might be shocked by the idea of chakra in the Naruto world and try to understand it.
One common theme is power - up. In many naruto and bleach fanfiction, characters from one series gain new powers or abilities when they interact with the other series. For example, Naruto might learn some Shinigami techniques in a fanfic. Another theme is friendship. Since both series value friendship highly, fanfictions often explore new friendships between characters from Naruto and Bleach, like Naruto and Ichigo becoming close allies.
One common theme is power. Since both Naruto and Bleach have characters with unique and powerful abilities, fanfictions often explore how these powers interact when the characters meet. For example, how Naruto's Rasengan would compare to Ichigo's Getsuga Tensho.
Naruto would probably befriend Ichigo right away. They both have a strong sense of justice and a desire to protect their friends. Sasuke, on the other hand, might be more aloof at first. He could be intrigued by Urahara Kisuke's mysterious nature. Naruto would likely get along well with Orihime too, as she has a kind heart. Sasuke might have a more competitive relationship with Byakuya, seeing his power and discipline.
In most cases, if Naruto dies in a Bleach fanfiction, it's likely a crossover event. His death could potentially disrupt the balance of power in the Bleach universe. For example, if his death is caused by a powerful Bleach villain, it might send shockwaves through the Soul Society. Shinigamis may start to question their own safety and the security of their realm. Also, his friends from the Naruto world might try to seek revenge in the Bleach universe, leading to all kinds of chaos and new storylines.
A fanfiction might explore the idea of Rukia training Naruto in the ways of soul reaper powers. Since Naruto is already a powerful ninja, learning new abilities could create a whole new level of strength for him. This could also lead to some interesting interactions between Naruto and the other characters in the Bleach series.
It might seem strange at first. Naruto is so used to his own world of ninjas, chakra, and hidden villages. Reading about Soul Reapers and Hollows from Bleach fanfiction is quite a departure. However, Naruto is known for his open - mindedness, so he might just enjoy it as a form of escapism from his own often - dangerous adventures.
A fanfic might focus on character development. It could show Sasuke learning some of the spiritual techniques from the Bleach universe while Naruto tries to understand the complex social structure in the Soul Society. There are also fanfics that rewrite the endings of Naruto and Bleach in a way that involves Sasuke more deeply in both stories.
There could be. Fanfiction writers often explore unique and extraordinary ideas, and the concept of characters from 'bleach' and 'naruto' being immortal is definitely an interesting one. However, finding a specific fanfiction with this exact premise might take some time. You'd need to search through different categories and tags on fanfiction platforms. Sometimes, these works might be part of a crossover where the rules of both universes are bent to make such a concept possible.
It's not that strange when you think about it. Naruto is a curious character. He might be interested in different stories and universes. Just like how we like to explore different fictional worlds, he could be intrigued by the Bleach fanfiction to see new ideas and concepts that he might not have in his own ninja world.