Sasuke could be one. Given their complex relationship, there could be a situation where Sasuke's newfound power or different ideology leads him to fight and beat Naruto in a fan - made story.
It could be an antagonist character in the Septiplier fanfiction world. Maybe someone who has a grudge against Jack for some reason, like a rival in a game or a love interest situation gone sour.
In some fanfictions, Naruto might get beat up when facing a powerful new villain who has some unknown jutsu. This could be a villain created by the fanfic writer to test Naruto's limits.
Well, in a 'jack gets beat up septiplier fanfiction', it could be that the writer is exploring a darker side of the relationship dynamics within the Septiplier fandom. It could be that Jack has made an enemy within the story's context, perhaps someone jealous of his relationship with another character. The beat - up could be a way to create drama and tension in the fan - created narrative.
One possible reason could be that he's gotten on the wrong side of a powerful client. Maybe he uncovered some shady business deals of the client during a case, and the client decided to take revenge by having him beaten up. Another reason might be related to his past. If some of his old associates from his pre - Harvey days found out he was now working in a high - profile law firm, they could be jealous and target him.
There's a story where a group of friends is having a party at a remote cabin. An intruder breaks in, but they work together and use household items as weapons to beat him up.
One possibility is that there's a misunderstanding between Naruto and Karui. Maybe Karui thinks Naruto has something to do with Sasuke's actions that have affected her village. So, in her anger, she attacks Naruto.
Another plot could be JJ's recovery. The fanfiction might focus on how she copes with the physical and emotional pain. It could show her going through therapy sessions, and her relationship with the team members getting closer as they support her during this tough time. For example, Garcia might bring her lots of goodies to cheer her up while she's in the hospital.
Well, it depends on the specific fanfiction. Sometimes, JJ getting beat up could be a catalyst for her to have some sort of character development. Maybe she realizes she needs more self - defense training or she becomes more assertive in her work. It could also create a lot of angst and drama within the team, with some members blaming themselves for not being there to protect her.
Another scenario could be a misunderstanding within the guild. Maybe a new member misinterprets Lucy's actions as a threat and attacks her. In the heat of the moment, before the situation is clarified, Lucy gets beat up. This could lead to a story arc about resolving misunderstandings and building trust within the guild.