It would surely cause a great shock among the different factions in the Naruto universe. The existence of an angel attendant might have been something that many held in high regard or were even afraid of. Naruto killing one would make him a controversial figure. Some might see him as a hero for eliminating a potential threat, while others might view him as a murderer.
The moral fabric of the Naruto universe would be shaken. Naruto has always been seen as a symbol of hope and justice. Killing an angel attendant would make people question his judgment and the values he stands for. It could also lead to a re - evaluation of the power dynamics in the universe, as the absence of the angel attendant might create a power vacuum or change the balance between different forces.
One possible motive could be that the angel attendant was working for an enemy force that Naruto perceived as a threat to his village. So, in order to protect his home and the people he loves, he might take such a drastic step.
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.
The impact would be significant. Since Naruto has such a large and passionate fandom, this fanfiction would be like a bomb. Some fans would stop reading fanfictions altogether if they find this concept too disturbing. Others might start creating counter - fanfictions where they try to rewrite the scenario to something more in line with the original spirit of the series. It could also lead to a decrease in the popularity of the overall fanfiction community related to Naruto if this kind of extreme and negative content becomes more common.
The Naruto universe would be completely desolate. There would be no more ninja villages, no more clans, and no more shinobi way. It would be a world filled with silence and death.
If Naruto kills Madara in fanfiction, it could completely shift the power dynamics in the Naruto universe. For one, it might lead to a more peaceful era much sooner as Madara was a major source of conflict. The Akatsuki's plans would likely fall apart without his influence, and the shinobi villages might start to focus more on internal rebuilding and cooperation rather than external threats.
One possible consequence could be chaos. Naruto was often seen as a symbol of hope and peace. His death at the hands of Madara would likely shatter the dreams of many characters. The villages might descend into fear and distrust again, and there could be a power vacuum that leads to wars between the different ninja villages.
It would also affect Naruto's relationships with other characters. His friends like Sakura would be devastated. She has deep feelings for Sasuke. Naruto's own self - perception would be shattered. He has always seen Sasuke as his friend and rival, and taking his life would be a major blow to his moral compass. Moreover, it could lead to a power vacuum in the ninja world as Sasuke was a powerful shinobi.
For characters like Itachi, if his spirit or some form of his consciousness was still around in the fanfiction, it would be a complex situation. He sacrificed so much to protect Sasuke, and now Naruto killing him would be a huge irony. Itachi might try to influence the events from the afterlife or through some other means. And Hinata, who loves Naruto, would be deeply concerned for Naruto's state of mind. She would try to support him, but also struggle with the moral implications of what he has done.
If Sasuke kills Naruto in fanfiction, it could lead to chaos in the shinobi world. Naruto is seen as a symbol of hope and peace, so his death would shatter the dreams of many. Villages might start to distrust each other more, and there could be a power struggle as no one as unifying as Naruto is around.
Well, in a really dark and twisted fanfiction, Sasuke could be under some sort of mind - control spell. The spell could be so strong that it overrides his feelings for Naruto. He might then attack and kill Naruto without fully realizing what he's doing. But in the real Naruto lore, their friendship and mutual respect are so strong that this is highly unlikely.