Perhaps there could be a story where an ancient prophecy in the Alola region involves both Mallow and the events in Pokemon Sun. Mallow is seen as a key figure in this prophecy, and with the assistance of the main character from Pokemon Sun, they must figure out how to fulfill it. Along the way, they encounter many different types of Pokemon and have to overcome their own personal fears and doubts, all while their relationship evolves.
One plot idea could be that Mallow discovers a rare and powerful Pokemon in the Alola region that is crucial to saving the local ecosystem. With the help of the protagonist from Pokemon Sun, they embark on a journey to protect this Pokemon from an evil team. Another idea is a romantic adventure where they participate in a grand Pokemon tournament together, and their relationship deepens through the shared experiences of training and competing.
Perhaps a plot where Mallow discovers a long - lost recipe book from an ancient Alolan civilization. This book contains recipes that can enhance a Pokemon's abilities in extraordinary ways. But there are also challenges in deciphering the old language and finding the rare ingredients. Mallow embarks on a quest across Alola, meeting different characters and Pokemon along the way, all while trying to unlock the secrets of the recipe book.
One interesting plot idea could be that Sun and Lillie go on a journey to discover a new type of Pokemon that has been rumored to exist in a hidden part of Alola. Another could be that they have to team up to save Lillie's mother from some sort of dark force. Maybe they also find a time - traveling Pokemon that takes them back to the past of Alola, and they learn about the origin of some of the local traditions.
One possible fanfiction could be about Mallow's journey to discover new and rare ingredients for her cooking. Maybe she ventures into a mysterious forest in Alola and meets a Pokemon that has the ability to guide her to a hidden grove filled with unique berries and herbs that she can use to create a special dish for a big island festival.
One common theme is friendship. Mallow and Sun's relationship is often explored, showing how they support and grow with each other. Another is the adventure aspect, like going on quests to find new pokemon or explore uncharted areas.
One idea could be a story about a trainer who discovers a rare and powerful Pokemon that was thought to be extinct in the Alola region. This Pokemon could have unique abilities that attract the attention of both good and bad characters in the fanfiction.
One idea could be a story where Lillie discovers a hidden power within herself during an adventure with the protagonist in Pokemon Sun. Maybe she can communicate with a rare and powerful Pokemon that no one else can. This could lead to a series of events where they have to protect this Pokemon from an evil organization.
For Mallow, her character could be developed further by exploring her family background more deeply. Maybe there are secrets in her family related to a certain type of Pokemon. In the context of Pokemon Sun, the main character could help her uncover these secrets, which would make her more confident and also add more depth to her character.
One idea could be a story where the protagonist is a trainer who discovers a rare and powerful Pokemon that has been lost for centuries. This Pokemon could have unique abilities that are different from what is known in the regular Pokemon world. Another idea is to focus on a team of trainers who are on a quest to save the Alola region from an unknown threat, perhaps an evil organization that wants to use the power of the Legendary Pokemon for their own gain.
Well, perhaps Serena could get involved in a mystery regarding a rare and powerful Pokemon in Sun and Moon. She could team up with some local trainers to solve it. Maybe there's a hidden cave where this Pokemon is rumored to be, and along the way, she discovers new forms of Pokemon she's never seen before. This would add an element of adventure to the fanfiction.
One idea could be a trainer from the Sun region traveling to the Moon region and having to adapt to the different Pokemon species and cultural differences there. For example, they might be shocked by the unique Z - Moves in the Moon region. Another could be a group of Pokemon from both regions coming together to stop an evil force that threatens both their lands. Maybe a dark organization is trying to capture rare Pokemon from both areas for their own sinister purposes.