Perhaps they are training in chakra control. Jiraiya sets up a series of challenges for Naruto. One task could be to transfer his chakra into small objects and make them levitate for a long time. Naruto, with his usual determination, would keep trying, and Jiraiya would share stories of his own training days to inspire Naruto and show him that it takes time and patience to master such skills.
One exciting scenario could be Naruto learning a new and powerful jutsu from Jiraiya. For example, Jiraiya might teach Naruto a more advanced form of the Rasengan. Naruto would struggle at first, but with Jiraiya's tough love and guidance, he would gradually master it. This would involve lots of physical training in different terrains, like near a waterfall where Naruto has to maintain his focus while being bombarded by the water's force.
In another scenario, they could be training in stealth. Jiraiya would take Naruto to a forest filled with various animals and ninjas on patrol. Naruto would have to learn how to move without being detected, use the natural environment to his advantage, and even mimic the sounds and movements of the animals. Jiraiya would be observing from afar and popping out to give Naruto tips or scold him when he makes a mistake.
Jiraiya's training methods in the fanfiction are quite diverse. He may start with basic physical conditioning such as push - ups, sit - ups and long - distance running to build Naruto's stamina. Then, he moves on to chakra - based training. He has Naruto practice chakra control by doing things like walking on water or climbing vertical surfaces using chakra. Jiraiya also teaches Naruto about the different types of chakra natures and how to combine them for more powerful jutsus. Additionally, he arranges mock battles for Naruto against various opponents, which could be either real people or summoned creatures, to improve Naruto's battle strategy and reaction time.
The training makes Naruto more confident in his abilities. Jiraiya constantly challenges Naruto and as Naruto overcomes these challenges, he realizes his own strength. He starts to believe in himself more, which is evident in the way he faces stronger opponents without hesitation later on. Also, Jiraiya's teachings about the ninja way and the importance of protecting those you love make Naruto more determined and focused on his goals.
Jiraiya's serious training helps Naruto a great deal. It makes Naruto more disciplined. He has to follow strict routines and endure tough physical and mental challenges. This helps him become stronger both in terms of his ninja skills and his ability to face difficulties in general.
One unique method could be training in extreme environments. Jiraiya might take Naruto to a desolate desert or a freezing tundra to test his endurance and ability to adapt. This forces Naruto to find new ways to use his chakra and skills.
Jiraiya's training in the fanfiction might focus on Naruto's inner strength as well. He could help Naruto better understand and control the Nine - Tails' power. This new - found control would give Naruto a sense of calm and authority. His character would shift from being just a loud - mouthed underdog to a more respected and powerful ninja. Naruto would also learn about loyalty and sacrifice from Jiraiya, which would shape his values.
One possible reason could be that in this fanfiction, Jiraiya might be preoccupied with other important matters. Maybe he has a secret mission that demands his full attention and he simply doesn't have the time to train Naruto. Another reason could be that there is some sort of conflict or misunderstanding between them that prevents Jiraiya from taking Naruto under his wing. For example, Naruto might have unknowingly offended Jiraiya in some way, or there could be a prophecy or external force that is keeping them apart for the time being.
One common scenario is Naruto training with a new or unexpected mentor. For example, he might train with a powerful and reclusive shinobi from a far - off village who has unique techniques to teach. Another is training in a special environment like a pocket dimension filled with dangerous beasts that force him to quickly level up his skills. Sometimes he'll train in a team with other characters who also have something new to offer, like a combination of taijutsu and ninjutsu training that he hasn't experienced before.
In the fanfiction, there might be a moment where Jiraiya takes Naruto to a secret training ground. This place has some special chakra - enhancing properties. Naruto has to endure a series of tough physical and mental challenges there. He struggles at first but gradually overcomes them, growing stronger in the process.
Perhaps Jiraiya has some personal issues or inner conflicts. He might be dealing with his own past traumas or demons that prevent him from taking on the role of Naruto's trainer. For example, he could be haunted by the failures in his previous relationships or battles, and he feels unfit to train Naruto until he sorts out his own problems.
One challenge could be the physical exhaustion. Jiraiya's training is likely to be very demanding physically, and Naruto might struggle to keep up with the intense workouts.