Sasuke could also play a major role. His rivalry with Naruto might take on a new dimension with Naruto having the power of the Black Dragon Emperor. He could either be jealous and try to compete even more fiercely, or he might be intrigued and eventually team up with Naruto in a new way.
Sasuke could also be a main character. His relationship with Naruto might change due to Naruto having the power of the Red Dragon Emperor. Maybe he would be jealous at first, but then they could end up working together to face new threats that this power has attracted. Sakura might also be involved, perhaps she tries to help Naruto control the new power or she is worried about the changes in Naruto.
Well, Naruto is most likely one of the main characters since it's a Naruto fanfiction. And probably there will be a character related to the black dragon emperor, whether it's the black dragon emperor itself or someone who has a connection to it. There could also be other Naruto characters like Sasuke or Sakura involved, depending on how the author wants to develop the story.
Naruto himself is likely to be one of the main characters. Since it's a Naruto fanfiction, he would probably play a central role. Maybe he'll be the one who discovers the power of Black Lightning and tries to incorporate it into his own fighting style. Another likely character could be Sasuke. He's always been Naruto's rival, and if Naruto starts using new powers, Sasuke would surely be interested in it too.
Obviously, the Black Dragon Emperor himself is a main character. He is likely to be at the center of the story, with his actions and decisions driving the plot forward.
Obviously Naruto would be the main character. Since it's about him being the son of the primordial dragon.
Obviously Naruto would be one of the main characters. And since it's about him being the son of Black Canary, Black Canary herself would be important. There could also be characters from the Naruto series like Sasuke and Sakura. They might be curious about Naruto's new powers and his strange origin.
Obviously Naruto would be one of the main characters. And since it's about the black dragon, the dragon itself would likely be a main character too. There might also be other Naruto - related characters like Sasuke or Sakura who could be involved in the story in some way.
Obviously, Naruto is one of the main characters. He is the one who usually gets involved with the dragon emperor concept. Sasuke can also be a prominent character. In some fanfictions, he might be jealous or intrigued by Naruto's new dragon - related powers. Kakashi could also play an important role, perhaps as a mentor trying to guide Naruto in handling his new abilities.
Most likely Naruto would be the main character as he is the Dragon Emperor. But other Naruto - verse characters might also be involved, like Sasuke, Sakura, Kakashi, etc. They could play different roles, such as Naruto's allies or opponents in this new storyline.
Well, clearly the fox and the dragon are the main characters. The fox might be depicted as a clever and resourceful character, perhaps a bit of an underdog. The dragon, on the other hand, could be presented as a powerful and majestic being, with great strength and magic at its disposal.