He'd probably be shocked by the different power systems. Naruto is used to chakra and jutsus, while Bleach has spiritual energy and zanpakutos. So it would be a big change for him to read about.
She might be shocked. Rukia is used to the order and propriety of the Soul Society. Naruto's sudden request would be out of the blue for her. But she may also be intrigued by his boldness.
Sasuke would probably be dismissive at first. He'd think it was a waste of time and Naruto should focus more on their ninja goals. But secretly, he might be a bit curious himself. Sakura would likely be surprised and might tease Naruto a bit about it, saying he should be more interested in medical ninjutsu or something more relevant to their village. Shikamaru, on the other hand, would just sigh and say it's too troublesome for him to care, but deep down he'd understand Naruto's need for something different.
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.
Rukia would probably be both amazed and a bit worried. Amazed at the new power Ichigo has, but worried about how it might change him. Chad would see it as a natural progression of Ichigo's power and be supportive. Orihime might be a bit scared at first, but then she would see the good in Ichigo's new form and try to encourage him.
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.