Well, perhaps there's a love triangle in the story. A boy in Fairy Tail High School is in love with a girl, but the girl's best friend also has feelings for the boy. This creates a lot of drama and tension among them, and they have to navigate their friendships and newfound love feelings all at once. And in the end, true love might prevail in a really unexpected way.
Gray could also be a main character. He's cool and mysterious. Maybe he falls in love with a new girl in school who is really into art. She's always drawing in the schoolyard, and Gray is intrigued by her creativity. Another possible main character could be Erza. She's strong - willed and might be the one who helps her friends with their love problems while also having her own secret admirer in the school.
One common theme is friendship - turned - love. Characters who were friends in the original 'Fairy Tail' story start to develop romantic feelings for each other in the high school setting. For example, Natsu and Lucy might have been just good friends at first but then realize they love each other more deeply.
In Fairy Tail High School, Gray was known for his cool and aloof demeanor. But when Juvia transferred in, his world was turned upside down. Juvia was head over heels for Gray from the start. She would leave little love notes in his locker. Gray, at first, was a bit flustered by her attention. One day, during a school project, they were paired together. As they worked, Gray started to see Juvia's kind heart and unique charm, and slowly he began to fall for her too, leading to a beautiful high - school - style romance.
One idea could be a story where Naruto and Natsu from Fairy Tail are new exchange students in a high school. They quickly become friends due to their similar energetic and fearless personalities. They form a club that combines ninja skills and magic, much to the confusion and awe of their classmates.
Another idea could be a fanfiction where Erza is the strict class president in high school. She meets a new transfer student who challenges her in many ways. At first, they seem to be at odds, but as they work on school projects together, they start to fall for each other. This kind of 'opposites attract' scenario in the context of 'fairy tail high school love fanfiction' can be really engaging.
One cute moment could be when Gajeel, who is usually tough, tries to write a poem for Levy in English class but messes it up hilariously. Levy finds it endearing though. Another moment might be when they are paired up for a science project. Gajeel is all clumsy with the equipment, but Levy patiently teaches him how to use it, and they end up having a great time together.
Well, without reading it specifically, it could be about Natsu being a rebel in high school within the Fairy Tail universe. Maybe he rebels against strict school rules, or perhaps he stands up against some sort of injustice in the school. It might also involve his relationships with other characters from Fairy Tail in this high - school - themed setting.
Their relationship starts off rocky. Gajeel is seen as a bit of a rebel, and Levy is the studious type. But as they are forced to work together on group projects, they start to see each other's good sides. Gajeel notices Levy's intelligence and kindness, and Levy sees that Gajeel has a soft heart beneath his tough exterior.
I'm not sure exactly as it's a fanfiction. But it might be about Natsu in a high school setting in the Fairy Tail universe, being a badass, which could involve him getting into cool adventures, showing off his powers, and having some sort of unique relationships with other characters from Fairy Tail in this high - school - themed scenario.