Well, Naruto might develop a very different set of skills. Pain's techniques are quite distinct. He could teach Naruto about the Rinnegan's powers and how to use them. Naruto might also become more isolated from the Hidden Leaf Village as Pain has little regard for the traditional village system. So, he could be more of an outcast ninja with a different moral compass.
His relationship with the Hidden Leaf would be strained. He might see the village as a source of weakness rather than a place to protect. And his friends in the village, like Sasuke and Sakura, would be more like strangers to him. He would not have the same bonds that were formed through growing up in the Leaf.
One way to conceptualize a love story between Naruto and Pain could be through the idea of redemption. Naruto might see the pain and confusion in Pain's heart that led him to his extreme actions. He could strive to show Pain a different path, and in this process, a deep connection could form that might turn into love. Naruto's unwavering belief in the goodness of people could gradually break down Pain's walls.
I'm not entirely sure as it's a very specific fanfic. It could potentially be about Ultear from a particular anime or manga universe being raised by Naruto's stepdad. Maybe it explores how her character develops under his influence, or perhaps it's a story full of adventure and growth in a unique AU (alternate universe).
Well, in such a fanfic, one could expect Naruto to have a very different upbringing. Tsunade might instill in him a different set of values compared to Jiraiya. For example, she could focus more on his medical ninjutsu skills early on, given her own expertise in that area. Also, Naruto might be more disciplined under Tsunade's care, as she is a strict leader. His relationships with other characters like Sakura and Sasuke could also develop in unique ways. Since Tsunade has a different personality from Jiraiya, Naruto's growth as a ninja and as a person would take on a whole new direction.
Well, the plot could involve Naruto growing up with the Akatsuki's unique values. He might learn different jutsu from the members. For example, he could pick up some of Hidan's immortality secrets or Kisame's water jutsu skills. His view of the ninja world would be shaped by the Akatsuki's goal of bringing change, which is different from what he would have learned in Konoha.
Well, the plot could involve Naruto being trained in Orochimaru's lair. He'd be exposed to Orochimaru's experiments and might gain some unique powers from them. For example, he could have better control over snakes or learn some snake - based jutsu. His view of the ninja world might also be warped as he grows up in Orochimaru's influence, seeing things more from a survival - of - the - fittest perspective.
One possible fanfic could involve Naruto learning unique jutsu from Jiraiya due to his Rinnegan. Maybe Jiraiya, with his vast knowledge, would train Naruto in ways that are different from the original story. For example, Naruto could master space - time ninjutsu related to the Rinnegan earlier, which would give him an edge in battles against stronger opponents like Akatsuki members. He might also use the Rinnegan to understand the secrets of the tailed beasts more deeply, leading to a different relationship with Kurama.
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.