The main character is usually the water dragon slayer himself or herself. They often have unique powers related to water manipulation, like creating water whips or tidal waves. Another common character is the mentor, who could be an older dragon slayer or a wise mage who teaches the protagonist the ways of slaying water dragons.
In most water dragon slayer fanfic, the slayer is the central figure. They might be joined by a sidekick, perhaps a young apprentice or a friend with complementary skills. There could also be an antagonist, like a powerful water dragon or an evil wizard who wants to use the water dragons for their own dark purposes. The relationships between these characters drive the story forward, with the slayer's journey to overcome the antagonist being a key plot point.
Often, the main character is an original creation who has the power of a water dragon slayer. For example, in many fanfictions, it could be a young ninja who discovers this power within themselves. They are usually the ones driving the story forward, facing challenges and growing as they learn to control their new abilities.
It's hard to say without reading it, but it could be the ice dragon slayer themselves. Maybe there's also a wise mentor figure who guides the slayer.
In some 'hellfire dragon slayer fanfic', there could be a powerful wizard as a main character. This wizard might not be a direct slayer but has the knowledge and power to help the slayer in their quest. And of course, the hellfire dragons can be considered main characters in a way, as their actions and nature drive much of the story's conflict.
The dragon slayer is of course a main character. They are often brave and strong - willed, strictly following their code of honor. Then there are the dragons, which can range from being purely evil to more complex characters with their own motives. There may also be mentors for the slayer, old and wise characters who teach the slayer about the code and how to fight.
Well, Naruto is most likely one of the main characters since it's in the title. There may also be other characters from the Naruto series like Sasuke or Sakura. And if it's about a lightning dragon slayer, there could be new characters introduced, perhaps a mentor - like figure who teaches Naruto about slaying lightning dragons.
The two most obvious main characters are the girl and the dragon. The girl is often portrayed as curious and brave. The dragon, on the other hand, can be depicted as wise, powerful, and sometimes a bit of a loner.
It could be an evil water mage who was once a student of the same master as Juvia but turned to the dark side. This antagonist would be jealous of Juvia's natural talent and would try to undermine her at every turn. He might use his knowledge of water magic to create dangerous illusions or floods to harm Juvia and those she cares about.
The main character is usually the one who turns into a dragon. They could be an ordinary human at the start, like a young student or a village worker. There are often also other dragons in the fanfic. Some might be wise and old, acting as mentors to the newly - turned dragon. And then there are the antagonists, which could be dragon hunters or other powerful and evil dragons who oppose the main character.
It's possible that there's a love interest for Percy in the fanfiction. This character could be another adventurer or someone from Percy's past. Their relationship could add an emotional aspect to the story, as Percy has to balance his feelings for this person with his dangerous job as a dragon slayer.
In some fanfictions, Happy, the flying cat, could also be an important character. He could provide comic relief and also be involved in some of Lucy's adventures as a dragon slayer. For example, he might help her find clues or get out of difficult situations. And then there could be original characters created specifically for the fanfiction. These characters could be other dragon slayers or powerful mages that interact with Lucy in different ways.