A great storyline could involve Eric's adventures before he met Ariel. Maybe he was on a quest to find a mysterious island, and during that journey, he had some premonitions or signs that led him to Ariel later. It could also be about Eric dealing with the political pressure in his kingdom regarding his marriage to Ariel, as she is from a different species.
One interesting storyline could be Ariel and Eric exploring new lands together that are beyond the sea and the shore they know. They could discover hidden islands with magical creatures and have adventures while learning more about each other's worlds.
Well, a possible storyline is that Melody and Alex have to overcome some misunderstandings. For example, there could be a situation where Alex is misjudged by the mermaid community because of his different appearance or origin. Through their friendship, they prove that differences don't matter and end up uniting the two groups. In this fanfiction, their relationship could be the key to breaking down barriers and creating harmony between different underwater species.
Perhaps in the fanfiction, Ariel and Eric get married and have to deal with the cultural differences between the underwater world and the human world. For example, Ariel has to learn the proper etiquette in Eric's kingdom while Eric tries to understand the unique traditions of Ariel's mermaid family.
Often, Eric is portrayed as a brave and curious character. He's not afraid to explore the unknown, which is how he ended up encountering Ariel in the first place. His love for the sea and his adventurous spirit make him an interesting figure in fanfiction.
Another creative plot could involve Melody having to make a difficult choice between following her heart and fulfilling a duty. For example, she could be faced with the decision to leave her family for a chance at a great adventure but knows it might cause her family pain. This would add a lot of emotional depth to the fanfiction.
One possible storyline could be that Ariel's sisters discover a hidden underwater kingdom that was lost long ago. They embark on a journey to explore it and learn about its history and secrets.
Perhaps in a fanfiction, Ariel and Eric will have a family of their own. They will raise their children to understand both the land and the sea, creating a unique bond between the two worlds.
One possible fanfiction could be that Ariel and Eric discover a hidden underwater kingdom that was lost long ago. They embark on a journey to learn about its history and find that it holds the key to a magical power that can save both the underwater and land worlds from a new threat.
A plot could be that Eric, as a merman, is part of a group of mermen who are at war with a different underwater species. Ariel gets caught in the middle of this conflict. Eric has to choose between his loyalty to his kind and his growing feelings for Ariel. This would create a lot of drama and tension in the fanfiction.
In the fanfiction, a romantic plot could involve Ariel getting the ability to walk on land permanently. Eric then takes her on a tour of his kingdom, showing her all the beautiful places. At sunset, he takes her to a cliff overlooking the ocean and proposes to her, making it a very romantic scene.