The main characters are obviously Ash and Professor Oak. Ash is the young and enthusiastic Pokemon trainer, and Professor Oak is the wise and experienced Pokemon expert.
Well, in some of these fanfictions, there could be stories where Ash and Professor Oak go on unique adventures not seen in the original series. Maybe they discover a new type of Pokemon together. However, it really depends on the specific fanfiction as there are many different takes on their relationship and the scenarios they get into.
The appeal might be the unique dynamic. Delia is Ash's mother and Oak is a respected figure in the Pokemon world. In fanfiction, it could be about exploring a different side of their relationships, perhaps a romantic or a more complex emotional bond that isn't shown in the original series. It gives fans the chance to be creative and rewrite the characters in a new light.
Regular Pokemon fanfiction usually focuses on things like Pokemon battles, trainer adventures, or the growth of the main characters like Ash. However, Delia and Professor Oak lemon fanfiction is more about their relationship. It often has a different tone, more focused on the personal and sometimes more adult - themed aspects if it's a lemon fanfiction. So it's a big departure from the typical Pokemon - centered stories.
Well, it could be about Ash getting some really special and secret training from Professor Oak. Maybe Oak teaches him some unique battle strategies that no one else knows. This could lead Ash to become an even more formidable trainer in the Pokemon world.
One possible reason could be that in the fanfiction, Ash might be depicted in a way that goes against Professor Oak's character values. For example, if Ash is shown as disrespectful to the Pokémon world's traditions which Professor Oak holds dear.
Another possible main character could be Gary. Since Gary has a connection to both Ash and Professor Oak, he could play a role. Maybe he's jealous of Ash getting special training from Oak and tries to interfere or he could also be inspired by Ash's training and start his own journey of improvement. Also, Misty or Brock could be involved as they are Ash's friends and might visit during the training to see how he's doing.
The fanfiction might also focus on Ash's personal growth as he works closely with Professor Oak. Maybe Oak teaches Ash more about Pokémon history and lore, which in turn helps Ash become a better trainer. For example, learning about the ancient powers of certain Pokémon could give Ash an edge in battles. Ash could then share this knowledge with his friends and other trainers.
Obviously, the main characters would be Professor Oak and Ash's mom. Professor Oak is known for his vast knowledge of Pokemon, and Ash's mom is important as she is Ash's mother and has supported his Pokemon journey from the start.
One possible plot could be that Professor Oak discovers a rare Pokemon that he believes Ash's mom might be interested in. He then takes it to her to show her, and they end up having a long conversation about Ash's adventures and how proud they both are of him.