It could also be that Naruto sees in Boruto's eye a sign of an emerging danger. The eye might hold a clue to a new enemy or a brewing conflict. Naruto, being the experienced ninja he is, would then start to take precautions and train Boruto more intensively to face whatever this sign in his eye indicates.
He might be shocked. Naruto has seen a lot in his life, but seeing something new and unexpected in his son's eye could still catch him off guard.
In the 'boruto kills naruto fanfiction', a motive could be a power struggle. Boruto might believe that Naruto's power is holding back the village's growth or his own potential. He could think that by eliminating Naruto, he can bring about a new era of power in the Hidden Leaf. Also, it could be out of desperation. If Boruto is in a situation where he believes that killing Naruto is the only way to save someone he loves, like his mother or a friend, he might take such a drastic step.
Boruto might be in awe. He has always known his father as the Hokage, a powerful and respected figure. Seeing Naruto's past full of struggles, loneliness, and determination would make him realize how far his father has come. It could also make Boruto more empathetic towards Naruto and perhaps inspire him to be more like his father in some ways.
In fanfiction, Naruto getting Shisui's eye could lead to a whole new plotline. It could potentially be a way to bridge the gap between the Uchiha clan and Naruto. Since Shisui was an important Uchiha, having his eye might give Naruto a connection to the clan's history and secrets. This could play a role in resolving some of the long - standing issues between the Uchiha and the rest of the village. Naruto might also use the eye's powers in unique ways, like combining it with his own Uzumaki chakra, creating new and unexpected jutsu.
One possible plot could be that Sakura gains a new understanding of Naruto's struggles and his past traumas. This might lead to her seeing him in a completely different light, perhaps strengthening their friendship or even leading to some romantic feelings if the fanfiction takes that route.
Maybe it's the high expectations that Naruto has for Boruto. Naruto is a hero, and he might unknowingly put a lot of pressure on Boruto to follow in his footsteps. Boruto could be scared of not being able to meet those expectations.
One possible plotline could be a powerful new enemy emerging that neither Naruto nor Boruto can defeat alone. Maybe an ancient evil that has been awakened and has powers far beyond what the ninja world has ever faced. Their deaths could be a sacrifice to seal this evil away, protecting the village and the world at large.
Another reason could be related to a prophecy. There might be a prophecy that Boruto will bring great destruction in the future, and Naruto, as the Hokage, feels it's his duty to prevent this at all costs. He might think that by killing Boruto, he can change the course of fate and protect the people he loves and the entire ninja world.
It's a really fascinating thought. Boruto watching Naruto fanfiction could have multiple outcomes. On one hand, he could be touched by the love and admiration fans have for Naruto and his friends. On the other hand, he might be critical of some of the inaccuracies or out - of - character portrayals. However, it could also open up his mind to different ways of thinking about the ninja world. For example, he could encounter fanfictions that explore alternate timelines or relationships that he hadn't considered before, which could in turn influence his own view of the world he lives in.
Seeing Naruto's power in fanfiction can greatly influence Boruto's character. It could make him more determined to reach his father's level. He might start training harder and be more serious about his ninja duties.