The fanfiction could center around the origin of the Dragon King Festival. Maybe it was created as a peace treaty between humans and dragons long ago. But now, some dark forces are trying to disrupt it. The Fairy Tail guild has to step in and protect the festival. Lucy could use her celestial spirit magic to gather information, Gray could freeze enemies in their tracks, and Erza with her requip magic could lead the charge against any threats to the festival.
I think Natsu would be the most interesting. His brash and hot - headed nature combined with his powerful Fire Dragon Slayer magic would make for some exciting scenes during the festival. He would probably be the first to jump into any challenges or battles related to the festival.
The Dragon King in Fairy Tail fanfiction could be a character that is related to the main characters in some way. Maybe it's a long - lost ancestor of Natsu or another dragon slayer. It could also be a villainous figure, bent on ruling over all the dragons and using their power to take over the world of Fairy Tail. In some fanfictions, the Dragon King might have a tragic backstory that led it to become the way it is, like being betrayed by humans in the past and now seeking revenge.
Typically, the Dragon King in fanfiction might have super strength, the ability to fly at extremely high speeds, and control over dragon - related magic like fire or ice breath.
One of the common themes is adventure. The Dragon King in these fanfictions embarks on all sorts of adventures in the Fairy Tail world. There are also themes of friendship and rivalry. The Dragon King might make friends with some Fairy Tail members while having rivalries with others. And of course, the theme of magic is always present as the Dragon King's magic and the Fairy Tail magic interact in different ways in these stories.
Well, one possible plot could be that Tiamat arrives in the Fairy Tail world unexpectedly. At first, the Fairy Tail members might be on guard as Tiamat is a powerful and somewhat menacing figure. But then, Tiamat could turn out to have a noble reason for being there, like seeking help to stop an even greater evil that threatens both its own realm and the world of Fairy Tail. This could lead to an alliance between Tiamat and the Fairy Tail guild, with the members using their unique magic abilities in combination with Tiamat's power to face the new threat.
In this fanfiction, perhaps Natsu's return as a 'king' means he has a new level of leadership. He might bring back some lost magic or knowledge that helps Fairy Tail regain its former glory. For example, he could have found a way to defeat an old enemy that was once too powerful for the guild. His return could also stir up emotions among the guild members, like excitement, relief, or even some jealousy from those who might have risen in his absence.
Natsu Dragneel is often a very popular character in this type of fanfiction. Since he has a connection to dragons already in the original Fairy Tail series, it's easy to incorporate him into Dragon King - related stories. Another popular one could be Igneel, as he is a powerful Dragon King in the lore.
In these fanfictions, a common concept is the interaction between different Dragon Kings. They might have their own hierarchies, alliances, or rivalries. For instance, a story could focus on two Dragon Kings from different regions who meet for the first time. How do they communicate? Do they immediately size each other up based on power? And how does this encounter affect the world around them, especially the humans who may be caught in the middle?
They might intersect through character crossovers. Imagine a scenario where a character from Naruto has the ability to use Fairy Tail - style magic. And when it comes to the Dragon King, perhaps it's a powerful entity that affects both the Naruto and Fairy Tail universes. For instance, the Dragon King could be a threat that forces characters from both Naruto and Fairy Tail to team up. This could lead to really interesting interactions between the ninjas and the mages.
One possible plot could be Naruto being transported to the Fairy Tail world and discovers he has the power of a Dragon Slayer. He then joins a guild and starts going on quests with the Fairy Tail members. Along the way, he has to learn how to control his new powers while also facing off against powerful enemies that威胁 the guild.