I'm not entirely sure as it's a fanfic. But it might involve some kind of contract within the Naruto universe related to the Shinigami, like a deal made with a death - god - like entity. Maybe a character has to give something up in exchange for power or knowledge.
In the 'naruto the legendary shinigami fanfic', it could be that Naruto is transported to the realm of the Shinigami. There, he discovers secrets about the Shinigami and its role in the Naruto universe. He may learn about ancient powers or prophecies related to the Shinigami. As he explores this new realm, he meets different creatures and characters. Some might be friendly and help him understand his new situation, while others could see him as an intruder or a threat. Naruto would then have to use his wits and any latent abilities he has to survive and find a way back to his own world, all while dealing with the mysteries of the Shinigami.
In this fanfic idea, Naruto summoning Shinigami captains could be really interesting. Maybe he could summon them to help in a battle against a powerful enemy like Kaguya. The Shinigami captains' unique abilities like kido and zanpakuto skills could turn the tide of the fight. Naruto's own chakra reserves and jutsu combined with their powers would create a very different kind of story dynamic.
Yes, there are likely Naruto has a Gundam fanfics out there. The world of fanfiction is vast, and it's not uncommon for fans to cross over different popular franchises like Naruto and Gundam. You can try searching on major fanfic websites.
Maybe the Shinigami uses its special powers to heal Naruto's severe injuries. For example, it could transfer some of its own spiritual energy to Naruto to revive his fading life force.
Well, it could be about Naruto having some special powers or abilities related to being the son of a Shinigami. Maybe he can communicate with the dead more easily or has some sort of death - related jutsu.
In a fanfic where Naruto is trained by the Shinigami, Naruto would face a whole new set of challenges. The training would be tough as the Shinigami's methods are likely to be very different from what he has experienced before. He might have to endure tests that involve facing his inner demons or dealing with the power of death directly. This could lead to a significant character development for Naruto. He would not only become stronger physically but also mentally, as he grapples with the complex concepts associated with the Shinigami's realm.
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.
Sasuke could also be a main character in such a fanfic. Given his quest for power and his complex personality, his encounter with the Shinigami could lead to some really interesting character development. He might be tempted by the Shinigami's power or be forced to make difficult choices that would change his path.
One interesting concept could be the combination of the Shinigami from the Naruto universe with the reaper-like aspects of traditional Shinigami. It might lead to unique power dynamics and character interactions.