One possible reason could be that Naruto might feel he doesn't fit in with the members of Team 7. Maybe he has some personal goals that he thinks he can't achieve while being on the team. For example, he might want to focus more on individual training to become stronger in a specific area like mastering a certain jutsu, and he believes being on a team would be a distraction.
If Naruto refuses to be on Team 7, the dynamic between Sasuke and Naruto would be completely different. Their rivalry might not develop in the same way as in the original story. Without Naruto on the team, Sasuke might not have the same motivation to become stronger, or he could become even more isolated and focused on his own goals in a different way.
One possible reason could be that Naruto has seen the toll the position takes on those who hold it. Maybe he witnessed the stress and loneliness that previous Hokages like his father had to endure. He might want a more carefree life, exploring the world and spending time with his friends and family without the heavy burden of leading the village.
Perhaps 'cra' stands for something specific like 'crazy' or an abbreviation for some other concept. Naruto refusing it might imply that the fanfiction contains out - of - character behavior for Naruto, such as making him act in ways that go against his well - established personality in the official story. For example, if the fanfiction makes Naruto suddenly become extremely cruel or cowardly when he is known for his determination and kindness in the original series.
It could also be that the plot of the fanfiction has Naruto in a situation where talking might put him or his loved ones in danger. So, for their safety and his own, he chooses not to talk.
Naruto might be initially very disappointed. He has always looked up to Jiraiya and expected to be trained by him. So, when faced with the refusal, he could be heartbroken and feel like he has lost a great opportunity.
Naruto might be initially very disappointed. He has always looked up to Kakashi as a strong and cool ninja, and being refused by him would be a big blow. He could become a bit sulky and withdrawn, feeling like he's not good enough.
Alan refused to be called up by the national football team because he thought his form was not good enough. He hoped to improve his competitive form and physical condition in the Chinese Super League before returning to the national team. His decision demonstrated the self-discipline and responsibility of a professional player. Alan's decision was understood and supported by the majority of fans.
Sasuke is an obvious choice. He has a connection to Naruto that goes beyond just friendship or rivalry. He might be the one who first discovers Naruto's predicament and sets out to find a solution. Sakura is essential too. Her skills as a medical ninja are crucial. She could be the one who patches Naruto up every time he gets injured in his fight against whatever is threatening his life. Also, characters like Jiraiya might make an appearance. Even though he's dead in the original story, in this fanfiction, he could come back as a spirit guide to help Naruto find a way to 'refuse to die', giving him advice based on his own knowledge and experiences.
One possible plotline could be that Naruto discovers a new form of chakra that makes him nearly invincible. For example, he might find a way to combine sage mode with a special kekkei genkai he unlocks. This new power allows him to withstand attacks that would otherwise be fatal. Another could be that he makes a pact with some sort of powerful spirit or deity who grants him immortality in exchange for a great service. Maybe he has to protect a sacred place from being destroyed forever. And yet another could be that through some advanced medical ninjutsu research, he figures out a way to regenerate his body continuously, thus refusing to die.