One idea could be a new student arriving at Fairy Tail High with a mysterious power. This new character could disrupt the existing social dynamics among the known Fairy Tail characters.
Another interesting idea is a time - travel fanfiction. A character from Fairy Tail High accidentally travels back in time and has to figure out how to get back while also making sure not to change the future too much. They might interact with younger versions of the beloved Fairy Tail characters.
Another plot could revolve around a big school competition. For example, a magic tournament where different clubs or groups from Fairy Tail High School participate. There could be rivalries, unexpected alliances, and lots of cool magic battles. The story could focus on how the characters train, strategize, and overcome their opponents.
You could do a time - travel fanfiction. Have a character go back in time to when the Fairy Tail guild was first founded and see how they interact with the founders. Or, write a story where the characters swap powers. So, Erza would have Lucy's celestial magic and Lucy would have to use Erza's requip magic. This would lead to a lot of comical and also challenging situations for them. Also, you could write a fanfic about the guild taking on a mission in a completely new and strange land, filled with magic they've never seen before.
One idea could be exploring an alternate universe where the main characters have different magic abilities. For example, Natsu could have ice - based magic instead of fire. Another idea is to focus on the backstories of the minor characters in more depth, like how they came to join Fairy Tail. A third idea would be to create a time - travel fanfiction where characters go back in time to change a significant event in the Fairy Tail world.
One idea could be exploring an alternate universe where the main characters have different magic powers. For example, Natsu could have ice - based magic instead of fire. Another idea is to focus on a backstory for a minor character, like how they came to join the guild. Maybe a story about a character's journey to find a long - lost magical artifact that has a connection to Fairy Tail's history.
You could write a Fairy Tail fanfiction centered around a character's growth. For instance, take Wendy. You could write about her journey to master new and powerful dragon - slayer magic, facing challenges that force her to grow not only in power but also in confidence and leadership skills. It could involve her going on a solo adventure to a far - off land to learn from a reclusive dragon.
One idea could be Wendy going on a solo adventure to a far - off land in the Fairy Tail universe to discover a new type of magic. She could meet unique characters and face challenges that test her skills and growth as a mage.
A possible plot idea is that a powerful and evil magic user from the Fairy Tail universe targets the school. The students then have to band together, using their different skills and the knowledge of Fairy Tail they've learned, to defend their school. They might also find out that some of their teachers have a hidden past related to Fairy Tail during this time.
A mystery plot would also be cool. There could be a series of strange events happening in the school, like things disappearing or strange noises at night. The students from Fairy Tail and Sabertooth have to work together to solve the mystery. They might initially be suspicious of each other but gradually learn to trust and rely on one another as they dig deeper into the mystery.
Well, in a high school fanfiction setting for Jerza, there could be a plot where Jellal is a bit of a troublemaker in school, always getting into minor scrapes with the teachers. Erza, on the other hand, is the model student. When Jellal is assigned community service as a punishment and Erza is in charge of supervising him, they start to see each other in a different light. Another idea is that there's a school talent show and Jellal and Erza end up doing a duet together, despite their initial reluctance. And for the third one, there could be a rumor going around school that Jellal and Erza are secretly dating, which they deny at first but then start to question their own feelings as a result of the rumor.
One idea could be Lucy starting at a new high school in the Fairy Tail universe. She could struggle to fit in while also hiding her celestial spirit powers. Maybe there's a school competition where she has to use her powers secretly to help her team win.