I think it's pretty far-fetched. The Rinnegan is not something Naruto would typically obtain, especially in a Narusaku context. It could make the story less believable and stray too far from the original canon.
One great 'rinnegan naruto fanfic' is 'The Rinnegan's Ascent'. It shows Naruto obtaining the rinnegan in a unique way and his journey to master it. Another is 'Naruto: Rinnegan's Destiny' which delves into how Naruto's character changes with this new power. And 'Rinnegan Naruto: New Era' is also interesting as it focuses on Naruto using the rinnegan to bring a new age of peace in the shinobi world.
The Sharingan and Rinnegan are iconic in Naruto fanfic. The Sharingan's different levels, from one - tomoe to three - tomoe and then the Mangekyou Sharingan, offer a wide range of creative possibilities. Fanfic writers might explore the emotional toll of using the Mangekyou Sharingan, like Itachi did. Regarding the Rinnegan, it's often associated with the Sage of Six Paths. In fanfic, it could be used to bring back ancient powers or create new forms of ninjutsu. These two eye - powers can be combined in fanfic in ways that the original series might not have fully explored, making for exciting reading.
Another possibility is that it's a result of some strange chakra experiment gone wrong (or right). Scientists in the Naruto universe are always dabbling in chakra research. Maybe an experiment meant to enhance her natural abilities instead gives her the Rinnegan, and she then has to learn to control it quickly to avoid being consumed by its power.
The Sage of Six Paths himself could be the key character. Since the Rinnegan was originally his power, he could appear in the fanfic in some form, like a spirit or a time - traveling version of himself. He could then directly bestow the Rinnegan upon Naruto, seeing Naruto's potential and the need for such power to maintain the balance in the ninja world.
Definitely. In some fanfics, Naruto uses the Rinnegan to rewrite the rules of ninjutsu. He could develop new techniques that are based on the Rinnegan's abilities, such as the ability to revive the dead in a different way than the traditional Edo Tensei. This makes him a target for those who oppose such a radical change in the ninja world.
There's also 'Naruto and the Rinnegan Legacy'. This fanfic delves deep into the lore of the Rinnegan and how Naruto fits into it. It explores how Naruto uses the powers of the Rinnegan not just for fighting but also for unifying the ninja world. The character development in this fanfic is quite remarkable as Naruto has to adapt to this new power while still staying true to his original self.
A 'naruto secret rinnegan fanfic' might center around the idea of a hidden Rinnegan technique. In this fanfic, the author could be exploring how a character obtains the Rinnegan in a very different and secretive way compared to what we've seen in the official Naruto story. It could also look at how the Rinnegan interacts with other unique abilities in the Naruto universe, perhaps creating new and unexpected combinations of powers.
One great 'Mata Rinnegan Naruto Fanfic' is 'The Rinnegan's Ascent'. It really delves into how Naruto might interact with the power of the Rinnegan in new and unexpected ways. The author does a wonderful job of exploring the lore and creating unique battles and character development.
In a Naruto Rinnegan Marvel fanfic, the plot could revolve around a group of Marvel characters trying to understand and control the power of the Rinnegan. They might find a way to combine it with their own technology or powers. For instance, Doctor Strange could study the Rinnegan's space - time manipulation abilities and try to incorporate it into his own magic. This would lead to all sorts of interesting adventures and conflicts.