Some fanfictions might explore the theme of Naruto being used and then discarded. For instance, the village might use his power to fight a certain enemy and then once the threat is over, they try to push him aside. He may also face discrimination based on his status as a jinchuriki. People might fear him and keep their distance, which makes him feel lonely and unwanted. There could also be a theme where Naruto tries to fit into a new group or community but is constantly rejected because of his past or his own unique abilities.
This type of fanfiction can make Naruto seem more complex. Instead of the always - positive and upbeat Naruto we know, we see a Naruto who is dealing with self - doubt and loneliness. It can also make readers more sympathetic towards him. His character becomes more three - dimensional as we understand the emotional pain he goes through when feeling unwanted.
In some fanfics, Naruto might feel unwanted because the author wants to explore a darker or more angsty side of his character. They may show him being excluded by the villagers even more than in the original story, perhaps to create a different kind of character development arc where he has to overcome not only external enemies but also this sense of being an outcast within his own community.
One reason could be that the fanfic writer wants to deviate from the original narrative where Naruto gradually gains acceptance. They might want to put him in a situation where he has to struggle more with being unwanted to make the story more interesting. For instance, they could write a scenario where new characters are introduced and they shun Naruto for some reason.
Maybe it's some kind of special jutsu or a curse that backfires in a way that numbs his pain receptors. For example, a powerful sealing technique might have been placed on him accidentally or on purpose that has this side - effect.
A 'creampie' is a vulgar term often associated with sexual content. Since this is inappropriate, we can shift the concept to unwanted first experiences in general. Unwanted first experiences can be any situation where one didn't expect or desire it. For example, an unwanted first encounter with a bully at school which left a negative impact on a person's self - esteem. It's unwanted because it causes distress, discomfort or harm.
His parents' death also contributed to his loneliness. Growing up without them, he didn't have that family support and love that most kids had. He had to fend for himself and deal with his feelings of abandonment all alone. And in the fanfiction, perhaps his friends are too busy with their own missions or problems, leaving him feeling isolated.
He might focus on his training. By pouring his energy into getting stronger, he can distract himself from his lonely feelings. Naruto has always been determined, and training gives him a sense of purpose.
One reason could be his status as a jinchuriki. People might be afraid of him because of the Nine - Tails inside him, so he feels unloved. Another reason is that he was an orphan, and without his parents around, he may have felt like he didn't have that family love that others had.