Well, perhaps Naruto would leave the village in the 'Naruto betrayed by his family' fanfiction. He'd feel that there was no place for him anymore. He could then start to explore the world on his own, encountering new enemies and allies, and trying to find a new meaning in life outside of the bonds that he thought he had in the village.
In this type of fanfiction, Naruto may initially be filled with anger and sadness. He could be very distrustful of others for a while. However, as time goes on, he might realize that he doesn't need his family's approval to be great. He could start to form his own 'family' of sorts, with comrades who truly understand and support him, and then work towards proving his worth not just to his family but to the entire ninja world.
In such a fanfiction, Naruto might become extremely disillusioned. He could turn to his friends like Sasuke or Sakura for support. He might also start to question his own worth and purpose, leading to a much darker and more complex character arc.
Another aspect could be influenced by external forces. Let's say an evil organization manipulates Naruto's family. They use mind - control or blackmail to make his family act against Naruto. In fanfiction, this can add a layer of drama and tragedy. It makes Naruto's journey even more difficult as he has to not only face external enemies but also deal with the betrayal of his own family.
In such a fanfiction, Naruto might be betrayed by his new allies in the DxD world due to misunderstandings. For example, his powerful jutsu could be misconstrued as a threat. His loyalty to his own ninja way might clash with the values of the DxD characters, leading to a rift.
In this kind of fanfiction, Naruto might face a lot of challenges. Maybe Rias, for some reason, turns against Naruto. Naruto could find himself isolated and having to fight against Rias' forces. He would probably rely on his ninja skills and his strong will to survive.
They could lose their home. If the betrayal is by the village, they would no longer be welcome there. They'd have to find a new place to live, which could be a difficult task as they are being hunted. They might end up in a hidden, desolate place where they have to start from scratch, building shelter and finding food.
Well, in such a fanfiction, Naruto might be made to turn against the principles or characters in the Kingdom Hearts world. Maybe he's tricked into believing false things about his friends there. For example, if there are some dark forces at play, they could manipulate Naruto into thinking his newfound allies are actually his enemies. This could lead to some epic battles where Naruto uses his ninja skills against the Keyblade wielders.
Well, if Naruto is godlike and betrayed by everyone in a fanfic, it could start with the villagers' fear of his newfound power. They might think he's a threat and turn on him. Naruto, being so powerful, could initially be in disbelief. But as the betrayal sinks in, he might decide to leave the Hidden Leaf. He could then wander the world, trying to figure out his place in it while also being cautious of those who might want to take advantage of his power or finish him off.
Naruto's character would go through a major transformation. He'd lose some of his naivete and innocence. Instead, he'd become more cynical, but also more determined. He'd no longer take loyalty for granted and would be more cautious in his relationships. As he overcomes obstacles, he'd develop a new sense of identity that is not tied to his family's expectations.
He would likely feel a great sense of anger. Naruto has a strong will, and this betrayal would fuel his anger. He might be determined to find out the truth and get revenge on those who wronged him. At the same time, he would also be in deep pain. It's like losing the most important thing in his life. This emotional turmoil could lead to a change in his personality, making him more withdrawn and less optimistic than before.
His reaction would depend on how the betrayal was presented. If it was a sudden revelation, he would be shocked and devastated. He may start to question his own worth, thinking that if his own parents could betray him, what was wrong with him? He could also become more reckless in his actions, not caring about the consequences as much since he felt like he had already lost the most important thing. This new Naruto could also be more empathetic towards the villains in the story, understanding their feelings of being wronged or betrayed in some way.
Sometimes in fanfictions, character development takes a dark turn. The friends might have their own personal goals that conflict with Naruto's. They could see Naruto as an obstacle to achieving those goals. Or perhaps there was a long - hidden secret that came to light, which made them change their attitude towards Naruto, leading to the so - called betrayal.