Sasuke could play a crucial role. He might use his Sharingan to detect what's wrong with Naruto more accurately. Then he could go on a mission to find a special cure.
I'm not sure if there is such a specific fanfiction. Fanfiction topics can be extremely diverse, but this one seems rather unusual and might not be common. It could also potentially violate the spirit of the original Naruto story which focuses more on their friendship and rivalry rather than this kind of relationship.
Yes, there might be such fanfics in the vast Naruto fanfic community. However, these often deviate from the original story's canon. Fanfics are a creative space for fans to explore different scenarios, but they can vary greatly in quality and adherence to the characters' original personalities.
Naruto's character would change in multiple aspects. First, he would have to adapt to the new abilities of the Rinnegan. This would require him to study and train more, making him more focused and perhaps a bit less impulsive. Second, the power of the Rinnegan might give him a different perspective on the ninja world. He might start to see the power struggles and politics in a new light. Third, his relationships with his friends, especially Sasuke, would be different. Since he now has a part of Sasuke (in the form of the Rinnegan), their bond could become even more complex and deep. And finally, he might face new challenges in terms of his identity, as he is now not just the Nine - Tails Jinchuriki Naruto, but also the wielder of the Rinnegan.
Well, it might be that there's a powerful enemy who can only be defeated if Naruto has the Sharingan. Sasuke, realizing this, decides to transfer his Sharingan to Naruto. In the fanfiction, Naruto would then have to deal with the new power. He might struggle at first to control it as it's not his natural ability. But as time goes on, he could use it to better understand Sasuke's perspective and strengthen their bond even more. He could also use it in battle, perhaps seeing his opponents' moves more clearly and countering them more effectively.
Well, he might gain the power of Shisui's Sharingan abilities. Naruto could potentially use Shisui's powerful genjutsu skills. It would make him even more formidable in battles against tough opponents like the Akatsuki members.
In fanfiction, if Naruto gets Madara's eyes, he might gain new and powerful abilities. For example, he could potentially have enhanced visual powers like the Sharingan's precognition in battle. His fighting style would likely change as he adapts to these new eyes. He might also face new challenges as his body adjusts to the foreign power of the Uchiha eyes.
Yes, there are likely fanfictions with such a plot in the Naruto fanfiction community. Fanfiction allows for creative and often non - canonical interpretations of characters and their relationships.
Yes, there might be such fanfictions out there. Fanfiction websites are full of various creative works. However, I can't specifically recommend any due to the potential for inconsistent quality and varying interpretations of the characters.
A common scenario is when Naruto is given a special mission or task that Sasuke feels he should have been chosen for. Sasuke's pride and his competitive nature with Naruto make him jealous. He might think that Naruto is being favored over him.