It could be a fearless knight. He has been on many quests before but when he hears the lightning dragon roar, he realizes it's a call to a greater adventure. He has to use his combat skills and courage to face whatever the roar signifies, whether it's a battle against a powerful enemy or a journey to find a lost treasure.
In a 'lightning dragon roar fanfiction', perhaps the roar is a call for help from the dragon itself. The dragon could be trapped by an evil sorcerer. A group of adventurers hears the roar and decides to rescue the dragon. As they get closer, they find out that the dragon is the key to saving their world from a dark force that is slowly consuming it.
It could be the dragon itself. The story could be told from the dragon's perspective, showing its thoughts and feelings as it uses its roar for various purposes.
A dragon tamer could be the main character. They have a special bond with the dragon and use the dragon's roar to their advantage in battles or to solve problems.
It could be a rogue ninja who has also mastered the Fire Dragon Roar but uses it for evil. This ninja might have a grudge against the Hidden Leaf Village and wants to destroy it using his powerful fire - based attacks. Maybe he was once rejected from the village and now seeks revenge.
Maybe it's Naruto himself with an additional power - up. Imagine Naruto gaining the godlike lightning ability on top of his existing powers. He would be even more formidable and could use the lightning in combination with his shadow clones and Rasengan techniques. This would change the dynamics of his battles and relationships with other characters like Sasuke, who also has powerful lightning - based attacks.
Rachel Berry could be a great main character. Given her ambitious nature, being struck by lightning could add an extra layer of drama to her journey of achieving stardom through the glee club.
Sasuke would also make a great main character. Given his affinity for lightning - based jutsus, he could be drawn to the Lightning God Slayer powers. He might see it as a way to become even more powerful and seek revenge on his enemies. His journey to master these powers could be filled with self - discovery and moral dilemmas.
Since I don't know the specific 'dragon's roar fanfic', it's hard to say. But it could be the dragon itself as a main character. There might also be a dragon rider if it's that type of story.
Well, it could be about a dragon with a powerful roar that scares away its enemies. Maybe it's a story of a hero who tames the dragon and uses its roar to their advantage.
A young princess could be the main character. She is often seen as a symbol of purity and royalty. The kingdom might be in a dire situation due to the dragon's attacks, so they offer her as a sacrifice. She then has to use her wits and any hidden powers she may have to deal with the dragon, perhaps even trying to change the dragon's nature.