Well, it really depends on the specific fanfiction. Some might have Naruto having special powers or a different destiny due to being Kami's son. For example, he could have an easier time learning certain jutsu or have a deeper connection to spiritual elements in the ninja world.
Naruto could become more mature and responsible. Knowing he is Kami's son might make him more aware of his role in the ninja world and the greater good. He might also become more spiritual, meditating more often to connect with his divine side.
Obviously, Naruto is the main character since it's about him being the son of Kami. But other important characters could include his friends like Sasuke and Sakura. They might play a role in how Naruto copes with his new identity.
Well, it could be about Naruto having extraordinary powers due to his divine parentage. Maybe he can control both ninja techniques and godly powers from Kami and Zeus. He might face challenges from both the ninja world and the realms of the gods.
Well, one interesting plot point could be Naruto's discovery of his divine heritage. It might change how he views himself and his place in the ninja world. Maybe he gains new powers that set him apart from his peers.
One possible antagonist could be those in the ninja world who fear Naruto's new - found power. They might see him as a threat to the existing power structure. For example, some of the more traditional ninja clans could be against him.
Maybe it's a completely new and unknown kami. A kami created specifically for this fanfiction. This kami could have unique powers and a different view of the ninja world compared to the existing characters in Naruto. It would add a fresh and exciting element to the story.
Maybe it's an existing character from Naruto who has been elevated to Kami status. For example, Tsunade could be turned into a Kami, and Naruto's relationship with her could be a very different dynamic from their previous ninja - leader relationship. Or it could be Kaguya, who was already a very powerful being, and in this fanfiction, she reforms and becomes a Kami and Naruto's wife.
In fanfiction, the 'kami' could be an original deity created by the author. This new 'kami' could have its own motives and reasons for giving a gift to Naruto. Maybe it's a kami that has been observing Naruto's journey and decides to interfere to help him achieve a greater purpose. It could be a kami associated with nature, like a kami of the wind or the fire, and the gift could be related to that element.
I'm not sure specifically as there could be many different interpretations of this fanfiction. It might involve Naruto being chosen by a kami (a god in Japanese mythology) for some special mission or purpose. Maybe he's given unique powers or abilities to face new threats in the Naruto universe.