It's possible that the fanfiction delves into the spiritual or otherworldly aspects related to Naruto's death and the Kohhoa. For example, Naruto's spirit could be lingering and trying to communicate with the Kohhoa to guide them. Or there could be some sort of ancient prophecy within the Kohhoa that Naruto's death is a part of, and they have to figure out what it means and how to fulfill their destiny in light of it. There could also be new characters introduced who are related to the events of Naruto's death and the Kohhoa's future.
In the original Naruto story, Naruto doesn't die (at least not in the main storyline). So this fanfiction immediately takes a different turn. The focus on the Kohhoa in relation to Naruto's death is also new. In the original, the Kohhoa might not have such a strong connection to Naruto's life - or - death situation. This fanfiction likely explores new relationships and power dynamics.
Maybe it's a transformed version of an existing Naruto character. For instance, Sasuke could potentially be turned into a death dealer in a dark alternate storyline. After all the pain and suffering he's been through, he might take on this role in a different way. Or it could be Orochimaru, who already has a rather dark and death - associated nature, perhaps evolving into a more extreme death dealer in this fanfiction.
The exploration of death and hate in Naruto fanfiction is a way for writers to dig deeper into the characters' psyches. For instance, Sasuke's character, who has elements of hate in the original series, can be further explored in fanfiction in relation to death. Maybe he witnesses more deaths that fuel his hatred even more. Writers can also create new characters who are products of death and hate, like an orphan who blames the ninja world for the death of their family and thus harbors intense hate. This kind of fanfiction can provide a fresh perspective on the Naruto universe.
If Naruto got the Death Note, it would be a complete chaos. Naruto has a strong sense of justice, but his understanding of it is very different from Light's in Death Note. He might initially be horrified by the power of the Death Note and try to destroy it. However, if he decided to use it, he could potentially target powerful enemies like Orochimaru or Pain without having to engage in direct combat. But this would also corrupt his ninja way as killing without a fair fight goes against his beliefs. He would likely struggle with the moral implications throughout the story.
Naruto would first be extremely confused by the rules of the Death Note. His understanding of power and its consequences is rooted in his ninja training and his own moral compass. The Death Note's rules, which seem so simple yet so deadly, would be completely foreign to him. He would question why anyone would create such a thing and would be very hesitant to even consider using it, as it goes against everything he stands for in his world of ninjas, friendship, and protecting the innocent.
One idea could be that Lady Death, being a powerful entity from another realm, senses Naruto's strong will and unique chakra. She decides to visit the Naruto universe to observe him closely. Naruto, initially confused by her presence, soon realizes she has knowledge that could help him become even stronger. They form an unlikely alliance where Naruto learns new skills from Lady Death, which he then uses to protect his village in a new and unexpected way.
I'm not sure specifically as there could be many different takes in Naruto Death Dragon fanfiction. It might involve a new dragon - related plotline in the Naruto universe, perhaps a dragon that brings death or is associated with some sort of dark power. It could also center around a character's encounter with this death dragon and how it changes the Naruto world's dynamics.
One great 'Naruto and Death Note' fanfiction is 'The Shinobi's Death Note'. It combines the unique power systems of both universes really well. The story has Naruto stumbling upon the Death Note and trying to figure out how to use it in a way that aligns with his ninja values.
One reason for this in fanfiction could be to give Naruto a different kind of arc. Instead of the somewhat positive neglect in the original (where it was more about being alone but still having some hope), here it's a full - blown abandonment. And his near - death experience can be used to show how fragile he really is, despite his strong - willed nature in the main series.