One possible plot is that Naruto's lack of his mother's memory affects his ability to form relationships. He may be more hesitant to trust others, especially women, thinking that they might abandon him like his mother did (in his view of being forgotten). This could lead to some interesting character development, like him slowly learning to open up through his interactions with characters like Tsunade, who could act as a mother figure in a way, and through these experiences, he gradually pieces together his mother's story.
Naruto would probably be more withdrawn. Without the subconscious memory of his mother's love, he might not be as quick to reach out to others. He'd be less likely to be the overly enthusiastic and sometimes naive Naruto we know. For instance, he might not be as eager to show off in front of his peers.
In fanfiction, Naruto might show his love for his mother through his memories. He could constantly recall the little time he had with her. For example, he might remember any advice or lullabies she gave him. These memories could fuel his actions, like when he faces difficulties, he might think about how his mother would want him to be strong and persevere.
One possible reason could be a misunderstanding. Maybe some false information was spread about his mother, making Naruto believe she had abandoned him. Another reason could be related to the secrecy around his mother. If he grew up feeling alone and not knowing about her, he might develop resentment.
No. It is completely unacceptable. Incestuous relationships are not tolerated in society, and this goes against the basic moral principles that the Naruto series also upholds in its normal storylines. It is a very abnormal and inappropriate concept.
One possible plot could be that Naruto's family, perhaps due to some dark magic or a curse, completely forgets who he is. Naruto then has to struggle not only with his normal challenges in the ninja world but also with the heartbreak of being forgotten by his own family. He might try to find a way to reverse the situation while also facing enemies who take advantage of his family's memory loss.
The plot might involve a curse. Naruto could be cursed by an ancient power. As a result, his friends' memories of him start to fade away. He might notice this when they stop responding to him as they used to. Naruto would be heartbroken but determined. He could search for the origin of the curse, facing many challenges along the way. And in the process, he might discover some long - lost secrets about his own family or the ninja world that are related to this curse.
Perhaps in this fanfiction, Naruto starts to have dreams about his parents where they seem distant and unrecognizable. This makes him search for answers, leading him on a journey where he uncovers secrets about his family that were long buried. As he digs deeper, he realizes that there were forces at work that made it seem like his parents forgot him, when in reality, it was a much more complex situation.
Well, Naruto is a really strong - willed character. So, at first he'd be really hurt. But then, he would probably try to figure out why his family has forgotten him. He might go on a journey to find answers, all the while dealing with the pain of this rejection. He could also be angry at his family for forgetting him so easily, especially considering all he's been through.
In some fanfictions, Naruto might be made to hate his mother because of a misinterpreted prophecy or a false belief that she abandoned him. Maybe the author wants to create a more complex and angsty story line for Naruto.