One possible plot is that Naruto is neglected not just by the villagers but also by his so - called friends. He feels like an outsider. Then, the Akatsuki, which is known for its collection of powerful and misfit ninjas, approaches him. They offer him power and a sense of belonging. Naruto, desperate for acceptance, joins them. As he becomes part of the Akatsuki, he begins to question the nature of good and evil. He might see that the Akatsuki also has some valid reasons for their actions, like wanting to change the shinobi world which is full of corruption and inequality, even if their methods are extreme.
In this kind of fanfiction, Naruto might be neglected by his village. He could be feeling alone and unappreciated. So, he decides to join the Akatsuki. Maybe he sees them as a group that could accept him for who he is, regardless of his past in Konoha. He might start to learn their ways and use his skills for their missions.
It could be the Hidden Leaf Village itself. Since Naruto was neglected there, the village's leadership or some of the villagers who shunned him could be seen as antagonists. They pushed Naruto towards the Akatsuki by not giving him the support he needed.
Well, one possible plot could be that they join initially to spy on Akatsuki from the inside. Naruto might think he can change the Akatsuki members' minds with his talk - no - jutsu. Sasuke could be there to find out more about the secrets Akatsuki is hiding, especially those related to his family. Maybe they end up causing chaos within Akatsuki as they slowly turn some of the members towards a more positive path.
A plot twist could be that Akatsuki has a hidden agenda that Naruto, Sasuke and Sakura are unaware of when they join. Maybe Akatsuki is being controlled by an even more powerful and sinister force, and the three are lured in as pawns. They then have to figure out the real situation and fight not only against the Akatsuki members who oppose their reform ideas but also against this hidden power.
Perhaps the Akatsuki's neglect is a part of a much larger plan by Naruto himself. He might be trying to lull the Akatsuki into a false sense of security while he's actually gathering information or power in the background. Then, when the Akatsuki least expects it, Naruto reveals his true intentions and uses the situation to his advantage, which would be a huge plot twist for the readers who thought Naruto was just being mean or indifferent.
Well, if Naruto and Tenten joined Akatsuki, it would be a huge shift in the Naruto universe. Naruto's ideals are so different from Akatsuki's. He believes in protecting the village and his friends, while Akatsuki is mostly about causing chaos and collecting the tailed beasts. Tenten, on the other hand, is a strong - willed kunoichi. Maybe they could try to change Akatsuki from the inside. But they would face a lot of opposition from the existing Akatsuki members who have their own agendas. It could lead to some really interesting power struggles and character development.
In a fanfiction where Naruto and Sakura join Akatsuki, it could lead to a complete shift in the power dynamics. They might initially be met with suspicion from the other Akatsuki members. Naruto could try to change the Akatsuki's goals from within, perhaps using his talk - no - jutsu to convince some of them to abandon their more villainous plans. Sakura, on the other hand, would bring her medical skills and combat abilities. This could also cause a rift between them and their former friends in Konoha, leading to some intense confrontations when they cross paths.
He could be motivated by a desire for revenge. Suppose something bad happened to him during his pregnancy that he blames on the traditional ninja system. He might see Akatsuki as a way to get back at the system that he feels has failed him. Also, he might believe that Akatsuki has the power to keep his unborn child safe from certain threats that he perceives in the ninja world.
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.
The Akatsuki could also feel a sense of sadness or betrayal in this 'neglected' scenario. For example, some members might have had a certain respect or even a strange kind of hope for Naruto. So, when they are neglected, it shatters that idea they had. They might then become more withdrawn and brood over this new situation, which could lead to changes in their group dynamics and individual characters.
The plot might involve Sakura and Hinata being deceived into joining the Akatsuki. They initially believe they are joining a group that has good intentions. Once they realize the true nature of the Akatsuki, they have to decide whether to stay and try to change things or escape. Sakura's medical skills could be useful to the Akatsuki in treating their members, and Hinata's gentle nature might start to influence some of the more brash Akatsuki members.