Well, the plot could involve a character who has both the Sharingan and the Rinnegan. Maybe Naruto somehow gains the Rinnegan in addition to his own powers. He could use the abilities of the Sharingan, like predicting movements and copying jutsus, along with the Rinnegan's power to control the six paths. This would create a really powerful and unique situation in the Naruto universe. He might face new enemies that are only a threat to someone with such combined powers.
The plot might center around Sasuke. Since he already has the Sharingan and later gets the Rinnegan. A fanfic could explore his journey with these combined powers more deeply. He could discover new techniques that are possible only when using both eyes' powers together. For example, creating a new type of Susanoo that incorporates the Rinnegan's abilities. This would change the power dynamics in the story and lead to different interactions with other characters.
Another possible plot could be a new character introduced into the Naruto world. This character has a natural ability to combine the Sharingan and Rinnegan powers. They could be from a hidden clan or a result of some sort of experiment. Their presence would disrupt the existing balance. They might initially be seen as a threat, but as the story progresses, it could be revealed that they have a different purpose, like protecting the world from a new and greater danger that only their combined powers can face.
The plot of such a fanfic might involve a villain who has the powers of both the Akatsuki (from Naruto) and the Arrancar (from Bleach) and is causing chaos in both worlds. Naruto, with his Rinnegan, and Ichigo are the only ones who can stop this villain. Naruto could use his Rinnegan - related abilities like the Six Paths powers to combat the villain's dark techniques. Meanwhile, Ichigo uses his Bankai and Hollow powers. The two of them would have to learn to work together, overcoming the differences in their powers and fighting styles.
Well, the plot might be about a powerful dark wizard or ninja who has the Byakugan, Sharingan and Rinnegan. This antagonist uses these powers to terrorize the ninja world. A group of young and brave ninjas then set out on a journey to find a way to counter these powers. Along the way, they discover an ancient prophecy that foretells of a hero who will be able to combine the powers of these three dojutsus in a new way. One of the young ninjas then has an epiphany during a battle and manages to unlock the combined form. They are then able to defeat the dark villain and restore peace to the world. The story could also include elements of self - discovery and friendship as the young ninjas grow together on their journey.
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.
One popular plot twist could be a character who has Sharingan suddenly developing Rinnegan abilities through some unique Naruto - universe event. Maybe they encounter a super - rare chakra source that mutates their eyes. Another could be a crossover where Naruto himself gains Sharingan and Rinnegan powers and has to learn to control them, which changes his whole fighting style and his relationships with his friends and enemies. It's also interesting when characters from different clans with Sharingan and Rinnegan have to team up against a common, powerful enemy in the fanfiction world.
A cool plot could be that a new villain emerges who has the ability to nullify the powers of the Sharingan and Rinnegan. Naruto and Sasuke have to find a way to overcome this without relying solely on their eye powers. They might discover ancient techniques that their predecessors used before the existence of these eye powers.
One popular type of Naruto fanfic that involves Rinnegan, Sharingan and Byakugan could be a story where a character has a unique ability that combines the powers of all three. For example, the character might be able to use the precognitive abilities of the Sharingan, the long - range vision and chakra detection of the Byakugan, and the powerful and otherworldly abilities of the Rinnegan all at once. This could lead to some really epic battle scenes and interesting plot developments as they face off against powerful foes.
When it comes to character development in Naruto fanfic involving the Sharingan and Rinnegan, these eye - powers can be a great catalyst. A character who acquires the Sharingan might start to become more isolated as they struggle with the new power and the secrets it holds. For example, they could be afraid of losing control. With the Rinnegan, a character could develop a god - like complex. They might see themselves as above others due to the immense power. This can lead to internal conflicts and growth throughout the fanfic.
If Naruto had both powers, his relationship with Sasuke would be affected. Sasuke might see Naruto as an even greater rival or, on the other hand, might be more willing to work with him. They could train together to better understand and control these new combined powers. Sakura might be in awe of Naruto's new abilities and try to support him in a different way, perhaps by researching more about the Sharingan and Rinnegan to help him. Kakashi, having knowledge of the Sharingan, could mentor Naruto in using it in combination with the Rinnegan.
One interesting plot idea could be a story where a character with both Sharingan and Rinnegan has to face an ancient evil that threatens the entire ninja world. This character could struggle with the power and the different abilities of both eyes as they try to master them in order to defeat the enemy.
One possible plot could be that a character from Naruto with the Rinnegan somehow gets transported to the Inuyasha universe. Maybe they team up with Inuyasha and his friends to fight a common enemy. For example, the power of the Rinnegan could be used to counter some of the powerful demons in the Inuyasha world. The character might also introduce new jutsu or abilities to the Inuyasha gang, which could change the way they fight battles.