The fanfiction where Naruto has all doujutsu has a huge impact on the Naruto universe. It alters the existing power hierarchy. Characters who were once threats may no longer be so. For instance, enemies like Pain or Madara might not be as formidable. Also, Naruto's relationships with his friends and mentors could change. His friends might look up to him even more, or some might feel left behind in terms of power. His mentors like Kakashi or Jiraiya might be surprised and have to adjust their training methods or expectations for him. Moreover, the story's overall theme of hard - earned growth through struggle could be diluted as Naruto's acquisition of all doujutsu could seem like an easy power - up.
It expands the Naruto universe by introducing new powers and abilities related to doujutsu. For example, new combinations of doujutsu that were not in the original series can be explored.
Well, in some fanfics, he might obtain them through some ancient ninja magic. Maybe he discovers a hidden scroll or a long - lost temple that grants him the power of all doujutsu.
Another possibility is that Naruto discovers some ancient and long - forgotten ninja art that allows him to either mimic or directly acquire the three doujutsu. It could be hidden in a secret scroll or a lost temple that he stumbles upon during one of his adventures. And this art gives him the ability to have all three doujutsu.
In the fanfiction, it could be that Naruto inherits the doujutsu. There might be a hidden lineage that Naruto is a part of, and when the time is right, the doujutsu awakens within him. This could be related to his Uzumaki heritage, which has many secrets yet to be fully explored. It's possible that some long - lost relative had this doujutsu and it has been passed down through the generations, finally emerging in Naruto.
It can make the Naruto universe seem more complex and realistic. Instead of just seeing the characters as simple good or bad, it shows that everyone has their own struggles. This can change the way fans view the story and its characters.
Well, if Naruto has all doujutsu in fanfiction, it means he has access to a whole new set of powers. For example, the Rinnegan's various abilities such as the Six Paths powers. This could lead to some really interesting plot developments, like him being able to use these doujutsu to bring peace to the ninja world in a different way than in the original story. Maybe he could use the Sharingan's genjutsu capabilities to defeat enemies without having to use brute force all the time.
The doujutsu can drive the plot by giving characters unique powers. For example, if a character has a powerful doujutsu, it can make them a target for other characters who want to either steal the power or use it for their own purposes.
The doujutsu might make Fem Naruto more empathetic towards Sasuke. For example, if it allows her to see his pain, she can respond in a more understanding way, which strengthens their bond.
It can change the power dynamics. If Kakashi fails Naruto, Naruto may not reach his full potential as quickly or at all. This could mean that some of the battles in the Naruto universe are lost or are much more difficult. For example, against Pain or Madara, Naruto might not be strong enough without proper guidance from Kakashi.
It also affects the perception of other characters. For instance, the villagers might see Naruto in a different light if Kushina is openly blaming him. They could either side with Kushina, thinking she's right in her concerns, or they could support Naruto, seeing him as a victim of unfair blame. This can lead to new alliances or rivalries within the village.