He becomes more determined. Training alone can be tough, but Naruto's resolve gets stronger. He realizes that he has to keep getting better to protect his friends and the village. This new - found determination is visible in his more focused training sessions.
In some fanfictions, Naruto might focus on improving his chakra control. He could practice by trying to walk on water or climb trees without using his hands, just like he did during his early training with Kakashi. This would help him become more proficient in using his chakra for various jutsus.
Well, in such a fanfic, Naruto might focus on mastering a new jutsu. He could be in a secluded area, like the forest near the village. He would practice over and over, facing challenges like controlling his chakra better. Maybe he'd also be thinking about how to become stronger to protect his friends and the village.
He could meet an old hermit who has some unique knowledge about chakra control. This hermit might be living deep in the forest where Naruto is training. The hermit could give Naruto some tips on how to better manage his chakra during his intense training sessions.
In some fanfictions, Naruto becomes more confident after the Wave Mission. He realizes his own strength and the importance of his friends more deeply. For example, he might be more assertive in battles and decision - making.
Perhaps in this fanfiction, Naruto and his friends go back to the Wave Country for a follow - up mission. This time, they discover a new threat that is related to the power struggle they witnessed during the first mission. The group has to use their improved skills and teamwork to face this threat and protect the people of Wave.
Well, in certain fanfictions, Naruto's view of the ninja world as a whole can shift after the Wave arc. He might start to question the traditional ninja values. Since he witnessed the greed and corruption that led to the problems in Wave, he could strive to change the ninja world from within. He may begin to form his own ideas about what it truly means to be a ninja, which could be different from what he was taught at the academy. He could try to promote peace and cooperation more actively, rather than just following orders blindly.
In some fanfictions, Naruto's serious training after Mizuki might lead to him rapidly improving his skills. He could master new jutsu faster, like developing a more powerful Rasengan variation. His physical strength and endurance would also increase significantly, allowing him to better handle difficult missions.
Well, it could be about Percy facing some new and unique challenges while training in isolation. Maybe he discovers a new power within himself during this alone time. He could be training to master a new weapon or combat style, like learning to fight with a double - edged sword that has some special powers. And he might encounter some mythical creatures that are drawn to his solitary training, which he has to fight off while still trying to improve his skills.
He could meet an old enemy who has also changed after the war. This enemy might now be in a similar situation of being alone and they could form an unexpected bond as they understand each other's isolation.