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.
The relationships between different countries and clans would be in chaos. Allies would turn into enemies as Naruto - Sauron starts to expand his territory. The Uzumaki clan might be shunned as they are related to Naruto. And the other great ninja clans like the Uchiha and Hyuga would either have to fight against Naruto - Sauron or submit to his rule. The once - harmonious coexistence between different ninja factions would be replaced by fear and tyranny.
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.
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.
The fanfiction can also explore different aspects of the ninja society. For example, how does the Hidden Leaf Village deal with a pregnant ninja? Are there special accommodations or rules? Tenten's pregnancy could be a catalyst to show the more domestic and social side of the ninja world that we don't often see in the original series. Naruto, being a prominent figure, could be involved in advocating for Tenten's rights and well - being during this time.
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 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 would be a huge shock to the Naruto universe. Konoha would be in a state of chaos. His friends like Sasuke, Sakura, and Kakashi would be devastated. They would likely seek revenge against the Akatsuki. The power balance in the ninja world would also shift. With Naruto gone, the threat of the Nine - Tails being used as a weapon would disappear, but at the same time, the Akatsuki would gain more influence and power, causing other villages to be on high alert.
Well, one way could be through some sort of dark magic crossover. Maybe a powerful dark wizard in the Naruto universe decides to experiment and accidentally fuses Naruto's chakra with Sauron's essence. Another possibility is that a strange interdimensional rift opens and Naruto is pulled into Middle - earth and somehow gets corrupted by Sauron's power and gradually transforms into him.
The impact would be huge. Naruto has always been a symbol of hope and friendship in the Naruto world. If he becomes like Obito, that symbol would be shattered. His friends and allies would be in shock and confusion. Konoha would likely be thrown into chaos as they try to figure out what happened to Naruto and how to deal with his new, potentially dangerous mindset.
The entire ninja world's view of good and evil would be challenged. Naruto was always on the side of good, but as Lucifer, he represents a different set of values. This could cause a moral crisis among the ninja. Young ninja who looked up to Naruto would be confused. The shinobi code might need to be re - evaluated. Also, the spiritual balance in the world, which was maintained by the natural chakra and the various jutsu, would be thrown off. Naruto's new Lucifer - like powers, which could be based on dark and unknown energy, would disrupt the existing energy flow and could potentially lead to disasters such as natural catastrophes or the awakening of ancient evils that were once sealed away.
It could have a major impact on the power balance. With Orochimaru gone, many of his secret experiments and knowledge could be lost or fall into the wrong hands. Naruto, being 'godlike', might be seen as the new power to keep in check. His friends and allies might start to distance themselves out of fear or respect for his new power level. The Akatsuki, too, would need to re - evaluate their plans as one of their potential allies or threats (depending on Orochimaru's relationship with them at the time) is no longer in the picture.