In fanfiction, 'Naruto has no life in his eyes' could imply that he has experienced great trauma or loss. Maybe he has witnessed the death of his dear friends or faced a situation that has broken his spirit. For example, if he lost Sasuke permanently, it could lead to such a state where his eyes seem lifeless, as Sasuke is one of the most important people in his life.
By showing his lack of reaction to things around him. Normally, Naruto is full of energy and reacts strongly to various situations. But if he has no life in his eyes, he might just stare blankly at things. For example, when his friends are talking to him or when there is an exciting event in the village, he shows no interest or emotion, as if he is just an empty shell.
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.
His relationships with his friends might become stronger. Since he can see more clearly with his god eyes, he can better protect them. His friends would trust him more knowing he has this extra power to keep them safe.
Well, if Naruto had 3 eyes in fanfiction, his visual perception would be greatly enhanced. He could potentially have a wider field of vision, like being able to see in more directions simultaneously. This might give him an edge in battle, as he could detect enemies coming from unexpected angles more easily.
He might rely more on his other senses like hearing and smell. Just like real - world blind people can develop enhanced other senses, Naruto could use his chakra to sense the environment more acutely.
Well, it could make his combat style more versatile. He might be able to analyze his opponents' moves more precisely. With six eyes, he could have a wider field of vision, detecting attacks from more angles. Maybe he can use this new visual ability to anticipate his enemies' actions better and counter them with more effective jutsu combinations.
Well, having Shisui's eyes would likely give Naruto enhanced genjutsu abilities. Shisui's eyes are known for their powerful genjutsu. Naruto could use this to deceive his opponents more effectively in battle. He might be able to cast illusions that are much more difficult to break, and it could also potentially give him an edge in stealth operations as he could use the genjutsu to misdirect enemies.
One great fanfiction is 'The Fox - Eyed Naruto' on FanFiction.net. It really delves into how Naruto's fox - eyed appearance changes the way people perceive him in the village. The author does an amazing job of integrating this new physical trait into the existing Naruto universe storyline.
Well, Naruto already has his own powerful abilities like the Nine - Tails chakra. But with Shisui's eyes, he'd likely gain the power of the Sharingan. He could probably use the Sharingan's basic abilities such as seeing the flow of chakra and predicting movements better. Maybe he could also use Shisui's special jutsu, like Kotoamatsukami, which could be a game - changer in battles and in influencing others without them even realizing it.