Well, the plot might revolve around Obito being brought back to the village in a different way. Naruto, being the friendly and accepting person he is, welcomes Obito. They start training together. Naruto shares his dreams of a united ninja world with Obito. Obito, initially skeptical, gradually warms up to the idea. As they train and face small challenges together, they build a strong bond. This bond then helps them when a major crisis hits the village, and they use their combined skills and friendship to save the day.
One possible plot could be that Naruto, with his unwavering belief in friendship, manages to reach out to Obito who is still lost in his dark thoughts. Naruto shows Obito the true meaning of the village and how people can change for the better. They could then team up to fight a common enemy, like a new powerful threat to the Hidden Leaf. In the process, Obito starts to heal from his past traumas and realizes that he can still have a positive impact on the world through friendship with Naruto.
The fanfiction could have a plot where Obito's reincarnation is not a normal one. He is reincarnated with a special mission from the afterlife. He has to find a way to bring peace to the shinobi world in a different way than Naruto did. He might have to face new enemies and also deal with the old grudges that still exist among the ninja clans. His reincarnation could also bring about a change in the relationship between the different villages as he tries to use his past experiences to create a more united and peaceful ninja world.
One possible plot could be that Naruto and Obito are forced to merge due to some dark jutsu gone wrong. Their combined form might initially struggle with two different sets of memories and personalities. Naruto's positive and determined nature could start to influence Obito's more cynical side. Eventually, they might use their combined powers to fight a new, powerful enemy that neither could have defeated alone.
One possible plot could be that Obito, having his own complex views on the ninja world, raises Naruto with a different set of values. He might train Naruto in more unorthodox ways, focusing on Naruto's raw power rather than the traditional ninja teachings. Naruto could grow up with a deeper understanding of the Uchiha's pain and Obito's motives, which could lead to a different path in his quest to become Hokage. For example, he might be more willing to question the village's decisions and seek real peace instead of just the village's prosperity.
In a fanfiction, Obito might be sent on a mission by some unknown force to watch over Baby Naruto. As he does, he starts to question his own beliefs. Naruto's pure and unwavering will even as a baby might start to chip away at Obito's hardened heart. This could lead to Obito trying to influence Naruto's growth in a positive way, like teaching him some skills secretly without Naruto knowing it was Obito.
One possible plot twist could be that Obito's true intention in founding Naruto's world was not what it seemed. Maybe he was trying to create a utopia where there would be no more war, but his methods were extreme. For example, he might have planned for Naruto to be the ultimate sacrifice to activate a jutsu that would change everyone's nature to be peaceful. Another twist could be that Obito was being controlled by a greater, more mysterious force all along and Naruto was actually a key to break free from that control.
Well, in this fanfic, Obito might raise Naruto to be more cynical about the Hidden Leaf Village. Since Obito has his own grudges against the village, he could influence Naruto's perception of it. However, Naruto's own kind heart might still shine through and he could end up trying to change Obito's views while still learning from him. For example, Naruto could use the power and skills he learns from Obito to protect the village in a new way, bridging the gap between Obito's distrust and the village's need for protection.
In a 'naruto joins obito fanfic', it could start with Naruto being transported to a parallel dimension where Obito has already started his own ninja village. Naruto, seeing the potential in Obito's ideas but also the flaws, decides to join him. He helps Obito to correct his path. For example, Naruto could teach the ninjas in Obito's village about the importance of hope and not giving in to hatred. They could then work together to build a village that is a model for the rest of the ninja world, based on both Obito's and Naruto's ideals.
One possibility could be Naruto having to deal with Obito's past traumas and memories while trying to use his own ninja skills. He might struggle to convince Obito's old allies that he's not the same person. For example, he could have to face Kakashi and try to explain the situation without revealing too much of Obito's secrets.
Another plot twist could be that Obito is secretly training Naruto to fight against an even greater enemy that no one else is aware of yet. This enemy could be an ancient force that is about to awaken, and Obito believes Naruto is the only one who can stop it. So, he's training Naruto in unique and unorthodox ways that seem strange to others at first.
Well, one possibility is that Naruto helps Tora who might be in some sort of trouble in the village. Maybe Tora got lost outside its usual territory and Naruto uses his ninja skills to find it and bring it back safely. This could lead to a new friendship where Tora starts to follow Naruto around, much to the amusement of the villagers.