One example could be a fanfiction where Naruto is in a battle against a powerful new enemy. Maybe this enemy has a unique jutsu that can drain Naruto's life force. Another could be a situation where he sacrifices himself to save the village from a massive destruction, like a huge explosion or a powerful curse. There are also fanfictions where he's poisoned and on the verge of death, and his friends have to race against time to find an antidote.
One way is through pacing. They slow down the story when Naruto is at his weakest, making every moment count. They might also use flashbacks to show what Naruto has to live for, like his friends and his dreams for the village. This makes the readers more invested in his survival. And they introduce unexpected twists, like a false hope of recovery that turns out to be a trap or a new threat emerging just when it seems Naruto might be saved.
I'm not entirely sure which specific fanfiction this refers to. But if Naruto were to die and become like Kushina, it could be a very interesting concept. Maybe it involves some sort of reincarnation or magic. It could potentially explore Naruto's connection to his mother in a much deeper way, like inheriting her abilities or personality traits. However, without reading the actual fanfiction, it's hard to say exactly what would happen.
Fanfictions about Naruto being neglected and nearly dying can be quite intense. Some might depict him being pushed to the brink by the lack of support from the village. For example, he could be deprived of proper training or basic necessities. However, these situations usually lead to Naruto's character growth in a different way than in the original series. He might form unexpected alliances with outcasts or find new powers within himself.
Well, I'm not sure about a single highly recommended one. But in general, in these fanfictions, Naruto's death for Sakura can lead to many different plot developments. It could make Sakura stronger, or it could drive a wedge between her and other characters who might blame her in some way for Naruto's sacrifice.
He would be filled with rage. Naruto has a strong sense of justice and the fact that someone took Hinata away from him would fuel his anger. He would vow to find and punish whoever was responsible. He might even become reckless in his pursuit of vengeance, endangering himself and those around him. His friends would have to step in to try and bring him back to his senses.
He would be filled with a deep sense of grief. Naruto has always cared about Hinata, and her death would be like a part of him has been ripped away. He might isolate himself for a while, blaming himself for not being able to protect her. But eventually, he would use his pain as motivation to get stronger and fight against whatever caused her death.
In the Naruto series, Naruto doesn't have a biological sister in the original story. So in this fanfiction, the author probably creates a new character to be his sister. It could be an original character with unique abilities and a complex backstory that leads to the situation where Naruto dies by her hand.
In such a fanfiction, Naruto could die in various ways. Maybe his sister is somehow possessed and attacks him fatally. Or there could be a situation where she accidentally causes his death during a fight due to a lack of control over her power.
One possible plot could be that Naruto sacrifices himself to save the village from a powerful and ancient evil. He uses all his chakra in a last - ditch effort to seal away the threat forever, leaving the village in mourning but also in a state of safety. Another plot might involve Naruto being poisoned by an enemy who has infiltrated the village. Despite the efforts of Sakura and the others, they can't find a cure in time, and Naruto succumbs to the poison. A third idea could be that in a battle against a new, incredibly strong foe, Naruto is overpowered and killed, which then spurs the rest of the shinobi world to come together to avenge his death.