One possible plot is that the OC, being adopted by the Akatsuki, has to deal with the internal power struggles within the group. There could be factions, like those led by Itachi and Kisame, and the OC has to choose sides or stay neutral. They might also bring in new ideas and values that start to change the Akatsuki from within. Their unique perspective could lead to different ways of approaching missions. For example, instead of always using brute force, they might suggest more stealthy and diplomatic solutions, which could either be welcomed or rejected by the other members.
The plot might center around the OC's growth within the Akatsuki. At first, they'd be in a state of confusion, not fully understanding the Akatsuki's goals. As they get adopted, they'd start to learn the ropes. It could be that they are initially tasked with menial jobs, like gathering information in villages. But then, as they show potential, they are given more important tasks. For instance, they could be involved in a heist with Sasori to steal some valuable ninja tools from a hidden village. Their journey would be about finding their place among these outcasts.
Well, one plot could be that the OC is a powerful ninja from a far - off land. They see Naruto's potential and his lonely situation. So they adopt him and start training him in unique jutsu that are not known in Konoha. This could lead to Naruto becoming even stronger and having new abilities that shock his friends and enemies alike.
One possible plot could be Naruto joining the Akatsuki under some false pretense. Maybe he's trying to infiltrate them to gather intelligence for the Leaf Village. He'd have to keep his true identity and motives hidden while interacting with the dangerous members like Itachi and Kisame.
Well, it could be that the female OC is in danger from some other ninja group. The Akatsuki, known for their power, decides to rescue her for their own purposes, like using her unique abilities. Maybe she has some special knowledge about a powerful jutsu or a hidden treasure. And they rescue her from a dangerous place, like a fortress full of enemy ninjas.
An 'akatsuki x oc lemon fanfiction' could have a plot where the OC is a healer who is captured by the Akatsuki. One of the members, say, Hidan, takes an interest in her. At first, the OC is terrified, but as she gets to know Hidan better, she realizes there's more to him than his violent exterior. The 'lemon' part could be a way to explore their growing attraction in a more physical sense. As they interact more, they start to understand each other's motives and pasts, and this relationship could either be a catalyst for change within the Akatsuki or lead to a big conflict with the other members.
Well, the storyline could be full of action and self - discovery. The OC might start off being a bit lost in the Naruto world, but with Pein as their adopted father figure, they could learn about the Akatsuki's goals and ideology. They might struggle with whether to fully embrace the Akatsuki's ways or find their own path that is more in line with the values of the Hidden Villages. Also, they could be involved in the Akatsuki's various missions, which would put them in conflict with some of the main Naruto characters.
Their abilities could become more lethal. Since the Akatsuki often deals with dangerous missions, the OC might be trained in more deadly jutsu. For example, if they had a basic fire - style jutsu before, they could learn to combine it with other elements under the Akatsuki's tutelage. They could also gain better stealth abilities, as the Akatsuki is known for its secrecy. Maybe they learn how to mask their chakra better like Kakuzu.
One possibility is that Naruto joins Akatsuki to change it from within. He might think he can stop their more evil plans while also learning more about his own powers and the secrets of the ninja world that Akatsuki seems to be involved in.
Well, one possible plot could be that Naruto, disillusioned with the Hidden Leaf Village after some major betrayal. He might start to see the Akatsuki's goals in a different light. For example, if the village wrongly accuses him of a crime he didn't commit, like they did with Sasuke in some ways. He could then be approached by an Akatsuki member who offers him a place in the group where he feels he can be understood. And Naruto, in his search for a new purpose and a place to belong, decides to join.
Well, if Naruto joins Akatsuki in fanfiction, perhaps it's because he's disillusioned with the Hidden Leaf Village for some reason. Maybe he feels betrayed by them. In Akatsuki, he could form unexpected alliances. For example, he might bond with Hidan over their shared brashness in a way, and together they could influence the direction of Akatsuki's actions.
Maybe Naruto joins the Akatsuki with the intention of spying on them for Konoha. He could pretend to be on their side while secretly sending information back to his village. This would add a lot of tension and secrecy to the story as he has to constantly be careful not to be discovered.