Jiraiya himself would be completely broken. He was Naruto's mentor and had high hopes for him. His actions would likely make him an outcast in the village. Also, the Nine - Tails within Naruto would be a major factor. Its power might go out of control or be lost forever, which could have unforeseen consequences for the balance of power in the Naruto universe.
Sakura would be heartbroken. She had grown up with Naruto and always saw his potential. His death would make her question a lot of things. She might become more withdrawn and serious, vowing to become stronger in Naruto's memory. Kakashi would be deeply saddened as well. He had trained Naruto and seen his growth. He would likely feel responsible in some way too, as he was one of Naruto's teachers. As for Hinata, she would be shattered. She had deep feelings for Naruto, and his death would be almost unbearable for her. She might become more determined to protect the village in Naruto's name.
One possible plot could be that during a very intense and dangerous training session, Jiraiya attempts a new and powerful jutsu. Naruto, being eager to learn and prove himself, jumps in too soon to assist or observe closely. Jiraiya loses control of the jutsu slightly and it accidentally hits Naruto, leading to his death. This would then cause a huge upheaval in the ninja world. All of Naruto's friends and allies would be in shock and disbelief. Sasuke might be filled with rage and vow to seek revenge, not fully understanding it was an accident at first. And Jiraiya himself would be consumed by guilt, perhaps even going into a self - imposed exile as he couldn't bear to face the consequences of what he had done.
It could be Orochimaru. Since Orochimaru has a long - standing feud with Jiraiya and is always up to no good. If Naruto ditches Jiraiya, Orochimaru might see this as an opportunity to manipulate Naruto. He could try to convince Naruto that Jiraiya was holding him back and that he can offer Naruto more power, all while having his own evil plans for Naruto.
Jiraiya might comfort Naruto by sharing his own experiences. He could tell Naruto about the times he faced difficulties and how he overcame them. For example, he might talk about his training with the toads and how he grew stronger through perseverance.
One possible reason could be that Naruto feels he has learned all he can from Jiraiya at that point. Maybe he wants to explore his own path independently and test his skills without Jiraiya's constant guidance.
Obviously, Naruto and Jiraiya are the main characters. Naruto is the young and energetic ninja with big dreams, while Jiraiya is the experienced and somewhat pervy sage who has a lot to teach Naruto.
Well, the main characters are Naruto Uzumaki and Jiraiya. Naruto is the protagonist of the Naruto series, a ninja full of energy and a strong will. Jiraiya, on the other hand, is a powerful and well - known ninja. He is Naruto's mentor in this fanfic, guiding him through various training regimens and sharing his knowledge and experiences.
There could also be other characters from the Naruto universe that play important roles. For instance, Tsunade might be involved as she has a connection to Jiraiya. She could offer additional guidance or be a source of conflict when she disagrees with Jiraiya's training methods for Naruto.
Some fanfictions might feature rogue ninja as antagonists. These rogue ninja are after the bounty on Naruto's head or they are trying to steal Jiraiya's knowledge. They attack Naruto and Jiraiya during their travels, making it difficult for them to reach their destination.