Typically, the members of the Delta Squad themselves are the main characters. They are likely to be unique ninjas with their own set of skills and personalities.
It could be a variety of villains. Maybe some of the traditional Naruto villains like Orochimaru or Pain could be in the story and Naruto kills them. Or perhaps in this fanfiction crossover, there are new villains created that are a combination of Naruto - style threats and Justice League - type menaces. It's hard to say exactly without reading the fanfiction, but it would be interesting if it included some well - known Naruto baddies being taken out by Naruto in a new setting with the Justice League around.
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.
In some naruto delta squad fanfiction, they could go on a mission to a far - off land in the Naruto world. This mission might involve uncovering ancient secrets and dealing with local threats. For example, they could find a lost village with a powerful jutsu that the wrong people are trying to obtain. The Delta Squad would then have to protect the village and the jutsu from falling into the wrong hands. They'd need to use their combat abilities as well as their intelligence to outwit the villains.
Another idea is a post - war scenario where Naruto is trying to rebuild the ninja world. Delta, being a powerful cyborg, could be a great asset. So, Naruto tries to recruit her. This could lead to some really interesting interactions as Naruto shows her the beauty of the new world he is trying to create and Delta has to decide if she wants to be a part of it.
Kawaki could also be a potential antagonist. If he feels that Delta's connection with Naruto is a threat to his own place in Konoha or his relationship with Naruto, he might act against them. He has a complex past and his insecurities could drive him to oppose their alliance.
In a fanfic where Naruto kills Sirzechs, it could be a very interesting concept. Maybe it's a crossover universe where the power dynamics are completely different. Naruto, with his powerful jutsu, might have a reason like protecting his own world from a perceived threat by Sirzechs. However, it also depends on how the author has set up the story, the rules of the world they've created, and the motives given to Naruto for such a drastic act.
Yes, there might be. Fanfics cover a wide range of alternate scenarios. However, not all of them are easy to find. You can start by looking on popular fanfic websites like FanFiction.net or Archive of Our Own. But keep in mind that some fanfics may deviate significantly from the original Naruto storyline.
If Naruto kills Rias in a fanfiction, it might be due to a misunderstanding. Naruto is known for his strong sense of justice. Perhaps in this fanfic, Rias is misrepresented as a threat to Naruto's world or his friends. But it's still quite a shock as they are from different fictional universes with their own moral compasses.
In fanfiction, such a plot would be extremely dark and out of character for Naruto. Naruto is typically portrayed as someone who values his friends and comrades, especially Hinata who he has deep emotional connections with. It could be a very edgy take in the fanfic world, perhaps exploring some extreme 'what - if' scenarios or alternate universes where Naruto has been corrupted or misinformed in some way.