Well, it could be that Naruto's journey of forgiveness starts when he discovers some long - hidden family secrets. Maybe he finds out that his family was being manipulated or forced into certain actions that seemed wrong. This new knowledge makes him see them in a different light and he decides to forgive. In a fanfiction, the author might show Naruto going through a period of self - reflection and growth, which leads him to forgive his family.
In some fanfictions, Naruto might forgive his family after realizing the circumstances that led to their actions. For example, if his parents had to make a difficult choice for the greater good, Naruto, with his big - hearted nature, could come to understand and forgive. He might have a heart - to - heart conversation with a family member's spirit or through a time - travel plot where he gets to see the past more clearly.
Perhaps in the fanfiction, Naruto is exposed to a new philosophy or way of thinking that promotes forgiveness. He might meet a wise character who teaches him about the power of forgiving one's family. Also, if Naruto experiences a similar situation where he has to make a tough choice that might be misjudged by others, he could then understand his family better and forgive them. It could also be that Naruto finds out his family had no other option in the situations they were in, and this realization leads to his forgiveness.
He could also distance himself from them. Naruto might choose to avoid his family, not wanting to be around them as a way to show his anger. He could move out or stop participating in family activities.
In the original series, Naruto is very forgiving and always tries to see the good in people. But in this fanfiction, he becomes more guarded and cynical. His lack of forgiveness towards his family might make him less trusting overall, not just towards them but also towards others. He may start to question relationships more and be less likely to give people second chances.
He might try to prove himself. Naruto has always been a determined character. So he would likely strive to show his family that they are wrong about him. He could do this by achieving great things in the ninja world, like mastering new jutsus or completing difficult missions.
He would be overjoyed. Naruto has always desired a family, so seeing them again would make him extremely happy.
Well, it could go in many directions. For example, his family might start to search for him, which could lead to a series of adventures where they encounter new characters and face various challenges. His wife, if he has one in the story, might become stronger and more independent in his absence, vowing to bring him back.
He might feel very sad and lonely at first. Naruto has always craved family love and acceptance, so being ignored by them would be a huge blow.
In this kind of fanfiction, Naruto may also feel a great deal of sadness and confusion at first. However, as time goes on, he could use that pain as motivation. He might think that if his family won't recognize him, he'll make a name for himself in the ninja world in a way that they can't ignore. He could start taking on dangerous missions, not just for the village but also to show his family what they're missing out on.
Naruto may try to find out the reason why he is forgotten. He will start by reflecting on his own actions. Maybe he thinks he has done something wrong that made his family forget him. Then he will strive to correct it. At the same time, he might also seek help from his friends like Sasuke and Sakura, who always stand by him.
He might focus on his training more. By pouring all his energy into getting stronger, he can distract himself from the pain of family neglect. For example, he could spend long hours practicing new jutsu or improving his physical abilities.