Well, Igneel is the central figure as he is the one meeting his grandkids. The grandkids themselves are important too. And if we consider the 'nalu' part, it could be that Natsu and Lucy are the parents of the grandkids, so they would be sort of secondary main characters in a way, having an influence on the story through their relationship with their kids and Igneel.
The main characters are obviously Igneel, and his grandkids. Nalu might also be involved in some way, perhaps as the parents of the grandkids.
In the 'nalu igneel meets his grandkids fanfiction', Igneel could be a strict but loving grandparent. He could train his grandkids in the ways of the dragon, making them stronger and more confident. And he might also introduce them to the magical world he comes from, showing them all the wonders and dangers there.
A group of rogue dragon slayers who have turned to the dark side could be the main antagonists. They envy Igneel's relationship with Natsu and Fairy Tail. They believe that dragons should rule over humans and plan to use their powers to subjugate the world. Igneel and Fairy Tail must stop them.
Well, the main characters are usually Natsu and Lucy. Natsu, with his dragon - slayer magic, is a powerful fighter. Lucy, on the other hand, has her celestial spirits to aid her in battles during the war scenarios in these fanfictions.
Obviously, Nalu is the main focus. There could be other characters as well, like their friends who might try to calm them down during their angry lemon - related spat. But Nalu is definitely the central characters in this fanfiction.
Obviously, Keith and his mom are the main characters.
The two main characters are Jon and his sister. Depending on the nature of the fanfiction, they could be very different in terms of character traits. One might be more outgoing while the other is more reserved. But the beauty of it is seeing how they interact and how their relationship unfolds when they meet.
In this 'kirk meets his father fanfiction', the two main characters are Kirk and his father. Kirk, who is often seen as a hero in many stories, and his father, whose presence will likely shape Kirk's character further. Their interactions, whether it's a simple conversation or a more complex exchange of ideas, will be at the heart of the story.
Obviously, Harry is one of the main characters. And his kids, although we don't know their specific names or personalities yet from just the title, are also main characters. There might also be his wife, who is an important part of the family and would likely be involved in the interactions with Harry and the kids.
The two main characters are without a doubt Natsu and Lucy. Natsu, with his dragon - like instincts and love for a good fight, and Lucy, with her collection of celestial keys and her dreamy nature. In the context of their married life in fanfiction, they are the focus. Their friends might also make appearances, but the story mainly revolves around Natsu and Lucy's relationship, whether it's a romantic dinner date or a battle they face together as a married couple.
Obviously, Natsu and Lucy are the central figures. Natsu is typically portrayed as a bit of a troublemaker in a fun way, with a heart of gold. He might be the popular jock type. Lucy is usually the studious and kind - hearted girl. Their interactions in high school, whether it's in the classroom, at school events, or just hanging out, form the basis of the love story in the fanfiction.