There are many Naruto fanfictions that might feature characters with cold blue eyes. Some could be about an alternate version of Sasuke with even colder blue eyes, where his power is enhanced and his personality is more aloof. You can find these on popular fanfiction websites by using the relevant tags.
One interesting Naruto cold eyes fanfiction could be about a character with cold eyes having a hidden past related to a powerful clan. They might be on a journey to discover their true heritage while facing various challenges in the Naruto universe. For example, they could be targeted by an enemy who fears their potential power due to their unique cold - eyed trait.
The cold blue eyes might represent a character's isolation or a sense of mystery. In Naruto's world, where most characters have warm - colored eyes, cold blue eyes would stand out. It could mean that the character has a past they are trying to hide or a power that is both feared and desired. For instance, they might be an outcast from their own clan because of their unique eyes.
Often, Naruto himself can be a main character in Naruto cold eyes fanfiction. The story could explore how he interacts with a character who has cold eyes. Another common main character could be a new, original character created specifically for the fanfiction, who has these cold eyes and has a significant role to play in the Naruto - inspired world.
One possible reason could be that his eyes hold a special power that he doesn't want others to discover easily. For example, it might be a new type of Sharingan or a unique ability related to his Uzumaki heritage that he needs to keep secret to protect himself or those around him.
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.
It could be that his new 'godlike' power has isolated him. People might be either in awe or afraid of him, and he may feel that he can't be close to others as before. So he acts coldly as a defense mechanism.
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.
There could be a fanfiction where Naruto gets a vision through Madara's eyes. He sees the past events that led Madara to become the powerful and feared ninja he was. This vision makes Naruto understand Madara on a deeper level. He then tries to find a way to prevent the same kind of tragedies that happened in Madara's life from happening again in the present ninja world. Naruto could use this new - found understanding to bring about peace in a different way than he originally thought.