A really interesting plot twist could be the discovery that the Byakugan and Sharingan are actually two parts of a more ancient and powerful dojutsu. This could lead to a race among different clans to find the other 'pieces' of this dojutsu, and it would completely rewrite the history and understanding of these two powerful abilities in the Naruto fanfic world.
Another plot twist could be a Sharingan user losing their eyesight but then gaining Byakugan - like abilities in a new way. Maybe through some experimental jutsu or a strange encounter. This would force them to adapt to a whole new way of seeing and fighting, and it would also create interesting interactions with other characters who are used to their old abilities.
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.
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.
They could be combined in a fanfic by having a character develop a new jutsu that uses the unique aspects of both. For example, using the Sharingan's ability to predict movements and the Byakugan's 360 - degree vision to create an all - seeing, movement - predicting defense or attack.
One idea could be a story where a character has both the Sharingan and Byakugan abilities due to some experimental jutsu. They struggle to control the powers as they are constantly in conflict with each other. For example, the Sharingan's ability to copy techniques clashes with the Byakugan's long - range vision and kekkei genkai detection. The character has to find a way to balance these two powerful dojutsu to use them effectively in battles and also in their daily ninja life.
The way these eye powers are depicted can also vary depending on the plot of the fanfic. If the fanfic is about a character's growth, the acquisition of one of these eye powers could be a major turning point. For instance, a character getting the Rinnegan might start as a weakling but quickly become a powerful force to be reckoned with. Writers may also explore the psychological impact of having these powers, like how the Sharingan's ability to remember every detail could drive a character mad, or how the Byakugan's all - seeing nature could make a character feel isolated.
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.
Another plot twist could be that Naruto getting the Sharingan is part of a much larger conspiracy. The Akatsuki might be behind it, trying to create a super - powerful being that they can control. So Naruto has to figure out who's behind this while also dealing with the new power. He might find that there are some hidden motives among his own allies as well, which would really shake up the story.
One possible plot twist could be that Naruto gains the Mangekyou Sharingan in a moment of extreme emotional turmoil, like seeing Sasuke in a life - threatening situation. This new power might make him an outcast in Konoha at first, as the Sharingan is a symbol of the Uchiha. Another twist could be that the Mangekyou Sharingan has some unforeseen side effects on Naruto's chakra system, making it difficult for him to control his normal jutsu. It could also lead to a power struggle within the village as some might fear Naruto's new - found power.
One popular plot twist could be a character who is seemingly under the influence of Kyouka Suigetsu but is actually faking it to deceive the enemy. This adds an element of mystery and deception to the story.
One creative plot twist could be a character who was thought to be a normal ninja suddenly reveals they have a Mangekyou Sharingan with a unique power that changes the whole power dynamic in the story. For example, a side character who has been helping the main character all along, but then uses their Mangekyou Sharingan to stop an impending doom that no one else could. Another could be that the Mangekyou Sharingan has the ability to swap the powers of other ninjas, creating chaos and new alliances.