In fanfiction, the reanimation jutsu might have extended or modified limitations. For instance, in the original, there were clear rules about the caster's control over the reanimated. But in fanfiction, a writer could create a scenario where the reanimated can break free of that control more easily. Also, the source of the sacrifice for the jutsu could be different. In the series, it was usually human sacrifices, but fanfiction might explore using other forms of energy or substances.
One common theme is redemption. The reanimated characters often get a chance to right their past wrongs. Another is the exploration of old relationships. Since they come back, they can re - interact with their former friends or foes.
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.
It could be a new character. Maybe an orphan who discovers they have these reanimation eyes and has to figure out how to use them while also dealing with the fact that they are different from everyone else in the ninja world.
Well, in 'naruto reanimation eyes fanfiction', a cool concept might be the connection between the reanimation eyes and the afterlife. It could be that the eyes are a link to the souls of the dead, allowing the user to communicate with them or even bring them back in a more complete form than normal reanimation jutsu. This could lead to all sorts of plot twists and character development.
Well, in a fanfic where Naruto gets the reanimation jutsu, it would change a lot of things. Naruto is a character who values life highly. He might struggle with the moral implications of using such a jutsu. On one hand, it could be a great strategic advantage, but on the other, it goes against his principles. He might use it in a very different way than others, like only bringing back those who died unjustly to give them a chance to right the wrongs.
One interesting idea could be the reanimation of minor characters from the Naruto series and exploring their backstories that were not fully told in the original. For example, reanimating a random shinobi from a minor clan and showing how their clan's unique abilities could have been used more effectively in the war. Another idea might be the reanimation of characters from different time periods in the Naruto universe's history, like shinobi from the era before the Hidden Villages were established.
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.
Perhaps in this fanfiction, Jiraiya discovers that Naruto is going to be the cause of a major catastrophe in the future. He might have seen a prophecy or some sort of sign that convinces him Naruto has to die to prevent this. It could also be that Jiraiya has been misled by false information about Naruto, which makes him think that Naruto has become an evil force that needs to be eliminated.
One possible reason could be that Naruto feels he has learned all he can from Jiraiya at that point. Maybe he has reached a level in his training where he believes he needs new experiences and challenges that Jiraiya can no longer provide.