In a fanfic where Orochimaru kills Naruto, the plot would take a very different direction. Naruto was the Jinchuriki of the Nine - Tails, and his death would mean the Nine - Tails' power is lost. Orochimaru might try to take over Konoha or use Naruto's death to gain some other advantage. The other ninja villages might see Konoha as weak and attack. His friends would have to deal with the grief and might turn to different paths, some perhaps darker in their search for meaning after such a loss.
In some fanfics, Naruto might use his new and powerful jutsu that he has mastered over time. Maybe he combines his Sage Mode with the power of the Nine - Tails in a unique way that Orochimaru can't counter. For example, he could use the Nine - Tails' chakra to enhance the range and power of his Sage Mode attacks, and then catch Orochimaru off - guard.
One consequence could be a shift in the power balance among the ninja villages. Since Orochimaru was a powerful and feared figure, his death might cause some chaos as his former allies or subordinates try to either avenge him or claim his resources. For example, some of his secret labs and experiments might be up for grabs, leading to potential conflicts.
Well, in some versions, Naruto might use his new and improved Rasengan techniques. He could have combined it with his Sage Mode powers to overpower Orochimaru. Maybe he also uses his quick thinking and the element of surprise, since Orochimaru is always so full of his own schemes.
The impact would be far - reaching. Naruto's actions of killing Orochimaru and the Akatsuki would send shockwaves through the ninja world. Politically, the relationships between the villages would need to be re - evaluated. Some villages might see Naruto as a symbol of hope and a unifying force, while others might be jealous of the Hidden Leaf for having such a powerful ninja. Economically, the trade routes that were affected by the Akatsuki's activities would start to normalize. Socially, the fear that the Akatsuki had instilled in the common people would start to fade away. However, Naruto would also have to deal with the moral implications of his actions, especially if he had to use extreme means to kill them.
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.
Well, the curse mark could potentially enhance Naruto's power in some ways. It might give him access to new forms of chakra or abilities. However, it also comes with risks as it has Orochimaru's influence. Naruto may initially struggle to control it, but as he grows stronger, he could learn to harness its power for good. Maybe it gives him a boost in combat situations, making his attacks more powerful and his movements faster.
In the fanfic, if Naruto kills the Sound 4, it could make Sasuke more competitive. He might see Naruto as having achieved a level of ruthlessness that he himself desires. Or, Sasuke could be disappointed in Naruto for resorting to killing. Their relationship would be full of tension as Sasuke tries to figure out where he stands in relation to a Naruto who has killed, and Naruto might struggle with Sasuke's reaction to his actions.
Their relationship would likely become very strained. Kiba would probably be afraid of Naruto at first. He might avoid Naruto and have a hard time trusting him again. Naruto, on the other hand, would feel extremely guilty.
Naruto might resist through his strong willpower. He has always been determined, and this would not change even under torture. He could keep thinking about his friends in the Leaf Village and his goal of becoming Hokage, which gives him the strength to endure.
In this kind of fanfiction, Naruto might have used his new and powerful jutsu that he developed secretly. Maybe it was a super - enhanced Rasengan with some special chakra nature added to it, which was strong enough to overpower Orochimaru.