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.
In some fanfictions, there might be original characters created by the author. For instance, a mysterious figure who has some connection to Natsu's multi - dragon slayer abilities. This character could be an antagonist, testing Natsu's skills, or a mentor, guiding him to master his powers better.
One of the main characters could be Happy, Natsu's loyal flying cat companion. Happy would likely be by Natsu's side during his retirement, still providing his comical relief and support. Another character could be Lucy. She might be concerned about Natsu's retirement decision and try to understand his reasons, or she could also be retiring from her own magical adventures and join Natsu in his new peaceful life.
It could be a powerful dark wizard who sees Natsu as a threat because of his alpha status among dragon slayers. This wizard might want to eliminate Natsu to gain control over the dragon slayers or to carry out some evil plan without interference.
There might also be some dark magic - using villains who want to use Natsu's alpha dragon slayer powers for their own evil purposes. They could try to capture him or manipulate him in some way. Maybe they plan to extract his power to create a powerful weapon or something.
In the 'king of dragon slayer fanfiction', Natsu is likely a central figure. He might have special powers related to slaying dragons, like breathing fire or having enhanced strength. His character could be developed in ways that are different from the original series, perhaps with new relationships and challenges within the fanfiction world.
Another plot might involve Natsu losing his dragon slaying powers temporarily. He then has to rely on his wits and the help of his friends in Fairy Tail. This could lead to some really heartwarming moments as his friends support him, and also some tense battles where they all have to fight together without Natsu's usual brute strength.
One popular 'natsu strongest dragon slayer fanfiction' is 'The Ascent of Natsu'. It shows Natsu achieving new levels of power and facing challenges that really highlight his status as a strong dragon slayer.
The main appeal is seeing Natsu's character at his most powerful. Fans love to see their favorite character in a position of extreme strength and dominance.
Obviously, Natsu is a main character. He is the central figure in most dragon slayer fanfictions. Also, his friends like Lucy, Gray, and Erza often play important roles. They support Natsu in his battles and adventures, and their unique abilities and personalities add depth to the story.
Obviously, Natsu is a very popular character. He is the main focus as the fire dragon slayer. His hot - tempered and determined nature makes him an exciting character to write about.