Pokemon Mermaid Fanfiction: What are some interesting plot ideas?

A possible plot idea is that there is a mermaid - themed Pokemon tournament. Misty enters it, thinking it's just a regular competition. But as she progresses, she realizes that the real purpose of the tournament is to find a human worthy of a special mermaid - related power. Misty has to compete against other trainers, all while uncovering the mystery behind the tournament and the power it offers.

One idea could be that Bonnie discovers a hidden mermaid colony while on a Pokemon adventure near the sea. The mermaids initially mistake her Pokemon for threats but then realize they mean no harm. Bonnie then has to help the mermaids protect their home from a group of poachers who are after rare sea Pokemon that live near the mermaid colony.

One idea could be exploring Ariel's life after she becomes human. Maybe she has trouble adjusting to some of the more mundane aspects of human life, like cooking or doing laundry. Another could be a story where Ursula's sister comes to seek revenge, but Ariel has to convince her that not all humans are bad.

One idea could be exploring the relationship between Melody and a new mermaid friend from a different part of the ocean. They could go on adventures together and discover hidden treasures.

For Mermaid Melody fanfiction, you could have a plot where a group of mermaids form a band to compete in an underwater music competition. But there's a catch - one of the judges is a sea witch in disguise who wants to steal their voices if they win. Another plot could be about a mermaid who is born with the ability to see the future. She tries to use this power to prevent disasters in the underwater world, but some mermaids are superstitious and think she's a bad omen. Also, a story about a mermaid who swaps bodies with a human girl for a day could be really interesting. She has to navigate the human world while the human girl has to deal with the underwater world.

Another plot could be about the mermaid learning more about the human world in a different way. Instead of just falling in love with the prince, she discovers a hidden talent among humans like music or art and tries to bring it back to the underwater world. This could create a whole new set of adventures and challenges for her. For example, she might have to find a way to communicate with a human artist without revealing her true identity at first.

One idea could be exploring what would happen if Ariel had a secret power she didn't know about until after she became human. For example, she could have the ability to communicate with all sea creatures, not just the ones she already knew. This would create new challenges and relationships on land.

One idea could be the main character being reborn as a Pikachu and having to navigate the world with its electric powers while making friends with other pokemon. Another could be being reborn as a Eevee and having the unique ability to evolve into any form at will, which causes both envy and admiration among other pokemon. Maybe the reborn pokemon has memories of being a human and uses that knowledge to outwit trainers and other threats.

Maybe a mermaid in Fairy Tail fanfiction is cursed. Instead of having a beautiful voice like in traditional mermaid tales, she has a voice that causes chaos when she sings. The Fairy Tail wizards have to find a way to break the curse without sacrificing her powers. They could go on a journey to find a special artifact that can reverse the curse.

One idea could be the mermaid's transformation into a human having unexpected side effects on her ability to communicate with sea creatures. Since she's now part of the human world, she might find that her once - effortless connection with the underwater beings is fading, leading to a sense of isolation and a longing for her former life.