There could also be a situation where Naruto sacrifices his life to seal away a great evil. Similar to how his father sealed the Nine - Tails, Naruto might find himself in a position where the only way to prevent a cataclysmic event is to use his own body as a prison for the evil entity, thus sacrificing his life in the process.
In some scenarios, Naruto might sacrifice his life to protect the village from an ultimate evil. For example, a new and extremely powerful enemy could threaten to destroy Konoha completely. Naruto, being the hero he is, would put his life on the line to stop this threat. He might use a powerful jutsu that requires all his life force to defeat the enemy and save his friends and the village.
One possible scenario could be that Gwen is in danger from a powerful dark magic user. Merlin steps in to protect her, knowing that the only way to defeat the enemy is to sacrifice his own life force or magic. Another could be that Gwen is wrongly accused of a crime she didn't commit, and Merlin sacrifices himself to prove her innocence and save her from execution.
Some fans are deeply moved. They might cry while reading it because Naruto has been such an important and beloved character throughout the series. His sacrifice represents the ultimate act of heroism, and fans who have grown attached to him over the years would feel a strong emotional connection to such a story.
In the fanfiction world where Naruto has inborn Mokuton, his training could start very early. Since Mokuton is related to nature, he could train in the forest, learning to communicate with the trees and draw out their power. He might be taught by an ancient spirit of the forest that only reveals itself to those with Mokuton. This spirit could show him how to infuse his chakra into the earth to make plants grow instantly. As he grows older, he could train with other powerful ninja who have nature - based jutsu to learn how to combine Mokuton with other elements. For instance, using wind to spread the seeds of his Mokuton - created plants further and faster.
Another possibility is that it could be a part of a self - discovery arc in the fanfiction. Maybe Naruto starts to question his own identity and through various interactions and experiences, he decides to reveal his true gender as a way to be more true to himself.
Another scenario might be physical abuse. His parents could be shown as using force against Naruto for minor mistakes. This would not only cause him physical pain but also make him fear his own parents. It could also lead to Naruto being more rebellious in some ways, as a form of self - defense mechanism.
Another possibility is that Naruto and Yang have a special bond. This bond could be formed through shared experiences, like they both went through a difficult training together or survived a life - threatening situation. Because of this special connection, Naruto feels indebted to Yang or simply values Yang's life more than his own arm.
Perhaps in the fanfiction, Naruto lets his hair out when he is in a moment of deep emotional turmoil. He's tired of always conforming to the shinobi norms and decides to let his hair down as a sign of rebellion. This could lead to interesting interactions with his friends and mentors, who might be surprised or concerned about this new look and attitude.
In such a fanfiction, one possible plot could be that Naruto faces an extremely powerful enemy who is about to kill Kakashi. Naruto, being the selfless hero he is, steps in and uses a powerful jutsu that requires sacrificing his own life to save Kakashi. This could lead to a great deal of mourning among the other characters, especially those close to Naruto like Sasuke and Sakura. They might then vow to carry on Naruto's will and protect the village even more fiercely in his memory.
One scenario could be during a large - scale battle. Naruto sees his friends getting injured left and right. He uses his medical jutsu to quickly heal their wounds and get them back into the fight. Another could be when he's on a solo mission in a remote area and he himself gets injured. His medical jutsu allows him to treat himself and continue the mission.
One possible scenario is that Naruto uses the Kubikiribocho to face off against stronger opponents. He could use it to surprise his enemies who are used to his regular attacks. Another scenario is that he might have to protect the weapon from those who want to steal it for their own evil purposes. And perhaps he'll learn some new skills related to the weapon from an unexpected source, like an old hermit who knows the secrets of Kubikiribocho.