Another theme is adventure. Since they are in the Pokemon world, they usually go on adventures, whether it's to catch new Pokemon or to explore uncharted regions. Their adventures often bring out different aspects of their personalities.
First, they could start as acquaintances. Maybe the OC saves Serena from a wild Pokemon attack, and this is the start of their connection. Then, they gradually spend more time together by traveling to different Pokemon gyms. As they share their dreams and experiences related to Pokemon, their relationship deepens. For example, if the OC has a dream of creating a Pokemon sanctuary, Serena can support and offer her own ideas.
A Litten might be a good choice for Serena. It has a fiery personality and could bring a new dynamic to her team. With proper training, it could become a powerful Fire - type Pokemon in battles against water - type opponents in Alola.
These fanfictions add an extra layer of depth to the characters. Fans get to explore the romantic aspect of Satoshi and Serena's relationship, which is not fully explored in the original series. It gives fans a chance to imagine different scenarios and outcomes for their relationship.
One idea could be that the OC is a new trainer in the Pokemon world and Serena helps them learn the ropes. For example, Serena could teach the OC about different Pokemon types and how to strategize in battles. Another plot could involve the OC having a special ability that Serena discovers, and they embark on a journey to understand and control this ability together. Maybe the OC can communicate with a rare type of Pokemon, and Serena is intrigued by this.
One popular Pokemon Leaf x Serena fanfic is 'A New Adventure'. It has an interesting plot where Leaf and Serena team up to explore a new region filled with rare Pokemon. The character development in this fanfic is really well - done.
One interesting plot could be Satoshi and Haruka teaming up to discover a new and rare Pokemon species. They might face challenges like difficult terrains and other trainers trying to get to the Pokemon first.
Satoshi is often a very liked character as he is the main protagonist in the Pokemon anime and his adventures are well - known. Fans like to see him in different scenarios in fanfiction.
One possible fanfiction could be that Serena finds an injured Pokemon in the forest that has a beast - like appearance. She decides to take care of it, much like Belle in Beauty and the Beast. As she nurses it back to health, she discovers that this Pokemon has unique powers and a kind heart hidden beneath its fierce exterior. Their bond grows stronger over time, and they face challenges together, with Serena's beauty and kindness taming the 'beast' Pokemon.
One possible scenario could be that Satoshi and Haruka have a misunderstanding. Maybe Satoshi made a promise to Haruka that he couldn't keep, like promising to always travel with her but then having to leave for an important mission. This could lead to heartbreak as Haruka feels betrayed and Satoshi feels guilty.