It's possible that new characters are introduced as well. Maybe some mysterious dragon - like beings who have their own motives and backstories. These new characters could interact with Natsu in ways that drive the plot forward. They might be friends, foes, or something in between, all adding to the complexity of the fanfiction.
There could be other Fairy Tail members as main characters too. They might play important roles in Natsu's new adventures. For instance, Lucy could be there to support Natsu with her celestial spirit magic. Gray might also be involved, adding his ice - make magic to the mix and having some interesting interactions with Natsu's new dragon - related situations.
It could be a water - based dragon. In that case, Natsu might have some water - related magic in addition to his fire magic. This would make him a very unique character as he would be able to combine two opposing elements in a way that no one else in the Fairy Tail guild could.
Happy, Natsu's flying cat companion, would definitely be a main character. He would be there to provide comic relief as always, but also be a source of emotional support for Natsu during his transformation into a dragon god. Erza might also be a prominent character. With her strong leadership skills and powerful magic, she could be guiding the guild during the times when Natsu is still coming to terms with his powers and the changes it brings to the guild.
Erza is also a main character. She is a strong and independent warrior, often leading the group and providing a sense of discipline among the dragon slayers.
Natsu would definitely be one of the main characters since the title implies he is the alpha dragon. There might also be his friends from the original series, like Lucy, Gray, and Erza. They could play important roles in how they interact with Natsu in his new form.
Obviously, Natsu would be the main character since it's about him being born a dragon. His friends from Fairy Tail like Lucy, Gray, and Erza are likely to be important characters as well. They would probably play a role in how Natsu adapts to his new form.
There could also be some new characters introduced specifically for this fanfiction. For instance, an ancient dragon who knows all about Natsu's true nature and acts as a mentor to him. This dragon could have a complex backstory and motives, and its interactions with Natsu and the other Fairy Tail members would be a major part of the story.
Lucy is often paired with Natsu in many fanfictions. Their relationship can be explored in different ways in these fan - created stories. It could be a more romantic relationship than in the original series, or they could have a different kind of partnership, like being more equal in power or having different goals they pursue together.
Obviously, Natsu is one of the main characters. He is the strongest dragon slayer in this fanfiction. His friends from Fairy Tail like Lucy, Gray, and Erza are also likely to be main characters. They often support Natsu in his battles and adventures.
The main characters are obviously Natsu and Lucy. Natsu, with his fiery dragon - slayer magic, is a strong and impulsive character. Lucy, on the other hand, is a celestial wizard with a kind heart. In this type of fanfiction, their relationship is the central focus, with their individual traits playing important roles in how their dragon - mate relationship develops.
Gray would also be important. There could be a rivalry - turned - friendship aspect where Gray, who has his own ice - making powers, and Natsu, as a dragon, have to learn to work together. Maybe they compete in a friendly way to see whose powers are more useful in different situations.