One potential plot line could be Naruto running away from home to find his own place. He might end up in a different village where he starts anew and discovers his true potential without the shadow of his sisters. Another plot line could be that Naruto tries to win back the attention of his family by achieving great things in the ninja world, which could lead to a series of challenging missions and battles.
Well, it would be a tough situation for Naruto. He's already had a rough start in the original series with being an outcast. If he's neglected for his sisters in fanfiction, he may start to feel like he has no place in his family or community. This could make him more rebellious. He might start to form his own 'family' of sorts with his friends, like Sasuke and Sakura, and rely on them more for emotional support. It could also make his relationship with his sisters more complex, either driving them apart or making them realize the error of their ways and come closer in the end.
Naruto's character could start off as a sad and lonely boy. However, his neglect could also fuel his creativity. He might come up with his own unique ways of doing things. As he faces challenges on his own, he'll build resilience. This will show in his actions and attitude. He won't be the typical Naruto who always has family support. Instead, he'll be a Naruto who has fought his way up from being overlooked and ignored, and this will give his character a whole new depth.
In this type of fanfiction, a likely scenario is that Naruto's sisters are favored in terms of education in ninjutsu. Naruto, being neglected, might have to find alternative ways to learn. He could end up befriending an old and wise ninja who takes him under his wing. This mentor could teach Naruto unique and powerful techniques that his sisters are not exposed to. As Naruto becomes stronger, his family starts to notice him, but by then he has already formed his own identity separate from their expectations.
Well, in the 'Naruto Neglected for Sisters' genre, there's a fanfic where Naruto tries to prove himself despite being constantly overshadowed by his sisters. It's called 'Naruto's Quest for Recognition'. Then there are fanfics that focus on the relationship dynamics, like 'Sisters' Impact on Naruto'. These fanfics often play with the idea of Naruto having to find his own path in a family where he's not the center of attention.
One reason 'Naruto Neglected for Sisters' fanfics are popular is that they create a sense of what - if. What if Naruto had sisters and was neglected? It gives fans a chance to see a different side of Naruto's character. Also, it can be a way to explore family dynamics that we don't see in the original Naruto series. People are drawn to the emotional turmoil that Naruto might experience, and how he might overcome it. Moreover, it can introduce new characters (the sisters) with their own personalities and abilities, which can expand the Naruto world in unique ways.
He might focus on his ninja training more. By pouring his energy into becoming stronger, he can distract himself from the neglect at home. Also, he could make friends outside his family, like Sasuke or Sakura, who would provide him with the support and friendship he lacks at home.
Well, it could make him more desperate to catch up. He might become more self - doubting at first. But then, as he realizes his mistake, he could develop a stronger sense of determination to overcome his lack of training. For example, he might start training in more unorthodox ways to make up for lost time.
One possible story could be that Naruto discovers his unique bloodline abilities later in life and realizes that his parents' neglect was partly due to fearing his power. He then has to come to terms with this and learn to control his abilities on his own.
He might try to prove himself. Naruto has always been a determined character. He could focus on his ninja training more intently, aiming to show everyone his worth despite being neglected. Maybe he'd also start to distance himself a bit from his family situation and form closer bonds with his friends like Sasuke and Sakura, who might understand and support him through this tough time.