how did danzo get all those sharingan

In a fanfic where Danzo gives Naruto the Sharingan, it could lead to a very different Naruto. Naruto might gain new abilities and a new perspective on the Uchiha. He could potentially master the Sharingan quickly with his strong willpower, but he would also have to deal with the dark side of the Sharingan, like the curse of hatred that often comes with it.

A fanfic plot where Danzo gives Naruto Sharingan could start with a life - or - death situation. Danzo sees Naruto as the only hope and gives him the Sharingan to give him an edge. Naruto then has to quickly adapt to the new power. As he does, he starts to have visions related to the Uchiha's past through the Sharingan. These visions lead him on a quest to uncover the truth about the Uchiha massacre and Danzo's role in it. This could lead to a conflict within the village as Naruto uncovers dark secrets and has to decide what to do with the knowledge and his new - found power.

Naruto would become much more powerful. The Sharingan could give him an edge in battles, allowing him to copy jutsu more easily. He might be able to use it to analyze his opponents faster. However, he would also have to deal with the negative aspects of the Sharingan, such as the potential strain on his eyes and the risk of overusing it.

There would be several implications. Firstly, Naruto's training would take a new turn. He would need to learn how to control and use the Sharingan properly, which could be a difficult task considering his already existing training regime. Secondly, politically, it could cause a stir in the Hidden Leaf. The Sharingan is a symbol of the Uchiha clan, and Naruto getting it from Danzo (who had a controversial relationship with the Uchiha) could lead to various political debates. Thirdly, on a personal level, Naruto might experience new emotions and temptations that come with the Sharingan's power. He might have to struggle with the darker aspects of the Sharingan, such as the potential to be consumed by its power, just as some Uchiha did in the past.

It's possible in the realm of fanfiction. Danzo is a complex character with access to many secrets and resources. If he were to give Naruto a Sharingan, it would completely change Naruto's power dynamics. Naruto already has his own powerful abilities like the Nine - Tails' chakra, and adding the Sharingan would make him an even more formidable opponent. However, this would also bring new challenges for Naruto in terms of controlling the Sharingan's powers and dealing with the Uchiha - related baggage that comes with it.

In the Naruto universe, while it's highly unlikely in the official canon, in fanfiction, anything can be made possible. The Sharingan is a kekkei genkai exclusive to the Uchiha clan. Danzo had Sharingan in his arm which he obtained through rather unethical means. For Naruto to get it from him in fanfiction, it could be written through some sort of experimental jutsu gone wrong or right. Maybe a jutsu that was meant to transfer power ended up giving Naruto the Sharingan. However, this would completely change Naruto's power dynamics and character arc as the Sharingan comes with its own set of abilities like the ability to copy jutsu, predict movements, and use genjutsu.

I'm not sure exactly how Medaka got all the fiction. Maybe it was through extensive research or a lucky find.

One way could be through a kekkei genkai transfer jutsu. If a powerful ninja, perhaps an old hermit with knowledge of ancient jutsus, decides to transfer Sasuke's Sharingan to Naruto for the greater good of the village. This jutsu might be risky but in the world of fanfiction, anything is possible.

In some fanfictions, it could be due to a special jutsu gone wrong. Maybe a jutsu that Kakashi was using to transfer some of his chakra to Naruto for a mission accidentally transferred his Sharingan power as well.

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