What could be the plot of 'Heart Under Lock and Key' Fairy Tail fanfiction?

It could be Natsu. He's a very popular character in Fairy Tail. Maybe he experiences something that makes him lock his heart away, like the fear of losing his friends. His journey to unlock it could be full of action and his typical fiery determination.

In 'under lock and key fanfiction', it may deal with power dynamics. For example, one character might have another character under their control, much like something being locked away and only accessible or manipulable by the one with the key. It could also be about a hidden society or group that is 'under lock and key', meaning it's very exclusive and secretive, and the fanfiction explores the inner workings of this group.

It could be about Natsu having left Fairy Tail for some reason and then reuniting with the guild in a very unexpected way. Maybe he has new powers or a different outlook on life that causes some friction and also some amazing moments of reunion and growth within the guild.

Well, one possible plot could be that Goku somehow ends up in the Fairy Tail world. He might initially be confused by the magic there, but then start to learn about it. He could team up with Natsu and the gang to fight against a powerful dark wizard. Goku's strength and his unique fighting skills like the Kamehameha could be a great asset to Fairy Tail in battles.

In 'under lock and key miraculous fanfiction', a frequent theme is struggle. The characters are likely to struggle against their confined situation. It could also involve themes of discovery. As they try to break free from being locked away, they might discover new things about themselves, their powers, or the Miraculous world in general. For example, they could find out about a long - lost power or a hidden enemy. And of course, there's the theme of trust. They may have to trust in new allies or their own instincts to get out of the locked - in situation.

The plot could involve Kagome bringing her spiritual powers and archery skills to Fairy Tail. Maybe she'd form a team with some of the guild's mages and go on adventures. She could use her holy powers to combat dark magic threats in the Fairy Tail world.

The plot might revolve around Yukino's journey of self - discovery within Fairy Tail. At first, she might feel like an outsider, but as she gets involved in the guild's daily activities, she starts to find her true self. For example, she could participate in the Grand Magic Games as a representative of Fairy Tail. During the games, she showcases her skills and also learns about the value of teamwork and friendship within the guild.

The plot might involve a magical item that is of a neutral color and holds a great secret. The Fairy Tail guild discovers it and has to figure out what it does. A team of wizards, including some lesser - known members, embark on a journey. Along the way, they face challenges that test their relationships and understanding of different kinds of magic. Since it's related to neutral colors, the item might have something to do with balance in the magical world.

One possible plot could be that Naruto is somehow transported to a world where Saiyan powers and Fairy Tail magic exist. He might start off as an outcast, not understanding these new powers at first. But as he trains and learns, he combines his ninja skills with Saiyan strength and Fairy Tail magic to become a powerful force and fight against an evil that threatens all three aspects of this new combined world.

Well, perhaps in this fanfiction, Fairy Tail characters bully Naruto because they are jealous of the attention he gets from certain characters in their shared universe. They start by making fun of his appearance, like his orange jumpsuit, and then escalate to more mean - spirited pranks, like using their magic to disrupt his ninja training.