On a broader scale, Naruto's achievement as a Chunin could affect the relationships between the Hidden Leaf and other ninja villages. Other villages might view the Hidden Leaf as even more powerful or might be more cautious in their interactions with it. His new rank could also open up opportunities for diplomatic missions or alliances that weren't possible before.
In the fanfic, Naruto's Hiraishin in the Chunin Exams could have a huge impact on his relationships. His use of this technique could make some of his peers jealous, like those who have been training hard but don't have such a powerful ability. On the other hand, it could also inspire some of them to work harder. And for Naruto himself, it would be a big step in his journey to become a great ninja. He would gain more confidence and respect from others. He might even start to be seen as a real contender for the Chunin title, not just because of his Hiraishin, but also because of how he uses it in the battles.
In a fanfic where Naruto gets killed by Pain, it's a dark turn of events. The story would then likely focus on how the remaining characters cope. For example, Kakashi might feel a great sense of guilt for not being able to protect Naruto. Hinata would be heartbroken. Moreover, the Nine - Tails would be left without a host, which could also lead to all sorts of problems. The ninja world would lose its most prominent symbol of perseverance and friendship, and it would be a very different world from the one we know in the original Naruto story.
Well, in the Naruto fanfic universe, the idea of a 'Hashirama Heir' is quite significant. It can bring back the old glory and values that Hashirama represented. Fanfics may show the heir as a symbol of hope, inspiring other characters to be better. Also, it can create new storylines. For example, the heir might have to deal with enemies who want to use their connection to Hashirama for their own evil purposes. They would then have to protect their identity and the secrets of Hashirama's power.
He faces tougher opponents. In the Chunin Exams, the competitors are more skilled. Naruto has to deal with more complex jutsus and battle strategies from his rivals. Also, he has to prove his leadership skills, which is crucial for a Chunin.
The ninja way as it is known would be completely overturned. Naruto has always represented values like friendship, hard work, and never giving up. As Sauron, he would promote values of domination and power over others. Shinobi training might change to focus more on dark arts and subjugation. Younger ninjas would be influenced by this new Naruto, and the future generations of the ninja world would be shaped in a very different and darker way.
His relationship with Sasuke might become more competitive. Since they are both aiming for higher levels of ninja skills, they would constantly push each other. With Sakura, Naruto might be more respected as he has achieved the Chunin rank, and she could see him in a new light.
It can change the power dynamics. If Kakashi fails Naruto, Naruto may not reach his full potential as quickly or at all. This could mean that some of the battles in the Naruto universe are lost or are much more difficult. For example, against Pain or Madara, Naruto might not be strong enough without proper guidance from Kakashi.
It also affects the perception of other characters. For instance, the villagers might see Naruto in a different light if Kushina is openly blaming him. They could either side with Kushina, thinking she's right in her concerns, or they could support Naruto, seeing him as a victim of unfair blame. This can lead to new alliances or rivalries within the village.
It gives him an advantage. He can quickly get to different locations in the exam area, like the forest of death. So he can find scrolls faster or escape from enemies more easily.
If Naruto becomes a hanyou, his relationships would be greatly affected. His friends might be initially shocked. For example, Sasuke would probably be very suspicious at first. He has always been cautious about those with different powers. Sakura might be a bit afraid but also curious to find a way to help Naruto control his new form. His relationship with Kakashi would also change as Kakashi would need to train Naruto differently to handle his hanyou powers and the possible instincts that come with it.