It could be a group of students from another academy who are jealous of Fairy Tail Academy's reputation. They constantly try to undermine Natsu and Lucy's efforts and cause trouble during competitions.
Maybe there's a strict teacher at the academy who has a hidden agenda. This teacher doesn't like Natsu's unruly ways and Lucy's independent thinking. So, they create obstacles for them, like giving them unfair punishments and difficult tasks. They seem to be the antagonists on the surface, but there could be a deeper, more sinister reason for their actions.
There might be a dark wizard who has infiltrated the academy secretly. This wizard is after a powerful magical artifact that Natsu and Lucy unknowingly possess. The wizard uses various means to try and get it from them, whether it's by creating chaos in the academy or directly attacking them. This makes the wizard a major antagonist in the fanfiction.
It could be a group of jealous students who don't like Natsu and Lucy being in charge. They might try to undermine their leadership by causing trouble during important events at the academy.
It could be a group of rogue mages who have a vendetta against Natsu and Erza. They see the two leaving Fairy Tail as an opportunity to attack them when they are more vulnerable outside the protection of the guild.
Lucy and Natsu are the central figures. Their relationship is at the core of this fanfiction. Lucy uses her wits and charm to tease Natsu, and Natsu responds with his typical fiery and passionate reactions. Their interactions are what drive the story forward, and any other characters that appear are there to either enhance or complicate their relationship dynamic.
The main characters are clearly Lucy and Natsu. Lucy is a celestial wizard in the Fairy Tail guild, known for her kind heart and determination. Natsu is a dragon slayer, hot - headed and powerful. In this fanfiction, their relationship is the focus, with Lucy taking the initiative to get closer to Natsu in a seductive way.
One possible plot could be that Natsu and Lucy become the top students in Fairy Tail Academy. They might use their unique skills and teamwork to overcome various challenges like difficult exams set by strict teachers. For example, Natsu could use his fire magic in a practical magic test, while Lucy summons her celestial spirits to solve problems in a more strategic way.
Obviously, Natsu would be one of the main characters. He's the 'badass' in the title. His fiery personality and powerful magic are likely to be central to the story.
Some fanfictions feature ancient evils that were sealed away long ago but are now starting to break free. These could be powerful demons or corrupted spirits. They see Lucy and Natsu as threats to their plans of world domination, so they target them. The antagonists in these cases are not only physically powerful but also very cunning, constantly devising new ways to outwit our heroes.
One possible antagonist could be a dark wizard from a rival guild who is jealous of Natsu's status as an alpha in Fairy Tail. This wizard might try to undermine Natsu's leadership and the guild's reputation.
The Fairy Tail guild members who supported Natsu's exile could be antagonists. They might believe in false accusations against him or have their own motives for wanting him out of the guild, like jealousy of his power or popularity.
One possible antagonist could be a dark wizard who wants to control the sea for his own evil purposes. Maybe he plans to use the power of the ocean to spread his dark magic across the land. Another could be a sea pirate captain who is jealous of Natsu's power and tries to stop him at every turn. Or it could be a sea monster that has been corrupted by dark magic and sees Natsu as a threat.