Well, in fanfiction, Naruto having red eyes at birth could be a major plot device. It could be linked to some ancient prophecy. Perhaps his red eyes are the key to unlocking a great power that can either save or destroy the ninja world. This would put him in the center of a much bigger conflict than in the original story. Also, his appearance with red eyes might make him an outcast in the village, as people would be superstitious about it. But on the flip side, it could also make him more of a symbol for those who are different or oppressed in the village.
If Naruto was born with red eyes in fanfiction, it could lead to a whole new set of adventures. His red eyes might attract the attention of different villains or allies. Villains could see him as a threat right away due to the unknown nature of his red - eyed power. Allies might be more eager to team up with him, thinking he has some special potential. It would also likely change his relationships. For example, Sasuke might view him as more of an equal from the start, rather than just a rival with no special heritage.
In fanfiction, if Naruto were born with red eyes, it could signify a different lineage. Maybe he'd be related to a more mysterious or powerful clan. His red eyes might give him unique powers, like enhanced visual abilities or a special type of chakra control. It could also change the way others perceive him. Instead of being seen as just an underdog with the Nine - Tails, he might be feared or respected from the start because of his strange - looking eyes.
If Naruto was born with the Rinnegan, it would mean a huge shift in the plot. The Rinnegan gives the user abilities like the power to control gravity, absorb chakra, etc. Naruto being born with it would likely mean he'd be able to master these powers faster than anyone else. This would make his training with Jiraiya different. Jiraiya might focus more on how to use the Rinnegan's powers in combination with Naruto's natural Uzumaki chakra reserves. Also, the village of Konoha would treat him even more carefully as he'd be like a super weapon from birth.
Well, having Juubi eyes in fanfiction could mean Naruto has an extremely powerful ocular ability. It might give him enhanced perception, allowing him to see chakra in greater detail and predict movements more accurately. Also, it could potentially grant him new jutsu or abilities related to the power of the Juubi.
His silver eyes could potentially change his relationships. Some characters might be more drawn to him because of his unique appearance. For example, Sakura might see him in a whole new light and develop different feelings for him. It could also affect how his enemies perceive him. They might underestimate him at first because of his non - traditional eye color, but then be surprised when they realize the power that comes with those silver eyes.
One implication is that he may have stronger ties to his family heritage. He could inherit more Uzumaki - specific powers or knowledge. For example, he might be better at sealing techniques from the start.
One possibility is that it would change his physical abilities in combat. The wings could allow him to have greater mobility, like quickly evading attacks or launching surprise aerial assaults. It might also make him a target, as his unique feature would draw attention from both allies and enemies who might be curious or jealous.
In a Naruto fanfiction with red eyes, he might gain this trait as a result of a new power-up. For example, he could encounter a powerful sage or a mysterious entity that bestows him with this red - eyed form. His abilities would likely change as well. He could have enhanced perception, like being able to see chakra more clearly or even predict his opponents' moves better. His friends might be initially shocked but would soon accept this new Naruto as he uses his powers for the good of the village.
In some fanfictions, Naruto having Kyuubi's eyes could signify a deeper connection to the Kyuubi's power. It might mean he can access its chakra more directly or even gain some of the Kyuubi's abilities related to perception, like seeing chakra more clearly.
He might be more confident. In the original, Naruto was often looked down upon. But with red eyes, which could be seen as a sign of power, he may grow up with a different self - image. He might not have to work as hard to prove himself initially, as his eyes would already mark him as special.
There would be a lot of implications for Goku's character growth. In the original story, Goku's journey to achieving Ultra Instinct was a long and arduous one filled with many battles and self - discoveries. If he was born with it, he would lack that growth experience. However, he could still have other forms of growth, like learning to control his emotions better while using Ultra Instinct. His relationships with his family and friends might also be different. For instance, Chi - Chi might be more worried about his safety since he has such a powerful ability from birth, and Gohan might look up to him even more. It could also change how Goku views himself. Instead of seeing himself as a constantly evolving warrior, he might feel a greater sense of responsibility due to his inborn power.
If Naruto becomes Sephiroth in fanfiction, it would change the nature of the story. The themes of the Naruto series, such as friendship, hard work, and perseverance, would be overshadowed by themes more in line with the Final Fantasy VII world, like the battle between good and evil in a more absolute sense. His character arc would no longer be about becoming the Hokage but rather about dealing with his new identity as Sephiroth. His appearance and actions would be so different that it would attract new readers who are fans of the Final Fantasy VII aesthetic, while also potentially alienating some traditional Naruto fans who prefer the original Naruto character.