Obviously Naruto would be one of the main characters, as the title implies he is the son of the Shinigami. There might also be other Naruto -verse characters like Sasuke, Sakura, and Kakashi who could play important roles. Maybe the Shinigami itself might be a character in some form, either as a physical presence or a guiding force in Naruto's life.
In this fanfiction, Naruto is the central figure. But characters like Jiraiya could be important too. Since he was Naruto's mentor, he might help Naruto understand his connection to the Shinigami. And of course, the villains in the Naruto series could also be part of this story. They might be interested in Naruto's new power or try to use his connection to the Shinigami for their own evil purposes. Also, there could be new characters introduced from the Shinigami's world, such as other death - related beings that interact with Naruto.
There could also be new characters introduced, like other Shinigami or beings related to the Shinigami world. For instance, a Shinigami who is Naruto's father figure or a spirit guide who helps Naruto understand his powers. These new characters would add more depth to the story and bring in new conflicts and relationships in the fanfic.
Naruto is surely the central character in this fanfiction. Given the title, the Shinigami is another key figure. It's possible that characters like Kakashi could also play important roles. Maybe he serves as a mentor to Naruto in understanding the powers and responsibilities that come with being the champion of the shinigami. Also, villains or antagonists related to the shinigami's realm might be introduced as main characters to oppose Naruto.
Since it's a Naruto - based fanfiction, Naruto is likely to be one of the main characters as he is the Jinchuuriki. There might also be other characters from the Naruto universe such as his friends like Sasuke, Sakura, etc. who could be involved in the story related to Naruto's connection with the Shinigami.
Apart from Naruto and the Shinigami, there could be other characters from the Naruto universe. For example, Sasuke might be involved. He could be either jealous of Naruto's new blessing or he could end up being an ally in Naruto's journey with this new power. Also, Kakashi could be there to guide Naruto in understanding and using the power given by the Shinigami. Maybe there are also some original characters created specifically for this fanfiction that are related to the Shinigami's realm or have some connection to Naruto's new situation.
Obviously Naruto would be one of the main characters since the title implies he is the substitute shinigami. There might also be other characters from the Naruto universe, like Sasuke or Sakura, who could be involved in Naruto's new role. They might either support him or be skeptical of his newfound powers and responsibilities.
Obviously, Naruto is one of the main characters. And of course, the Shinigami King. There may also be other characters from the Naruto series who interact with Naruto in the context of his relationship with the Shinigami King, like Sasuke or Kakashi.
Since it's a Naruto - based fanfiction, Naruto is definitely a main character. In addition, it could feature the Hokages, as they often play important roles in Naruto's life and they might be involved in the mystery of the Shinigami's left hand. Also, villains from the Naruto series could show up. For example, Orochimaru might be interested in this power of the Shinigami's left hand and try to take it from Naruto, making him a major character in this fanfiction as well.
I'm sorry I don't know specifically as it's a fanfic. It could potentially feature Naruto himself, or perhaps some other well - known characters like Sasuke or Kakashi. Since it's related to the Shinigami, it might also introduce new characters who are somehow connected to this death - god - like entity.
Since it's a Naruto - related fanfic, Naruto is likely to be one of the main characters. There may also be characters related to the Shinigami, though without reading it, it's hard to say exactly who they could be. Maybe the Shinigami itself could be a major character, or other characters from the Naruto world who get involved in Naruto's encounter with the Shinigami.
It could be about Naruto having a connection to the Shinigami. Maybe it explores a story where Naruto is the son of the Shinigami in an alternate universe. It might involve Naruto having special powers or a different destiny related to the Shinigami's realm.