Ash, the protagonist of the main Pokemon series, is a central figure. He has his Pikachu by his side most of the time. Richie, who is often seen as a kind of rival or brother - like figure to Ash, is also a main character. His Pokemon, like his Butterfree, play important roles in the fanfiction. Sometimes, other characters from the Pokemon universe like Brock or Misty might also make appearances to add more depth to the story.
A plotline might involve Richie getting lost in an unknown region, and Ash goes to find him. Along the way, Ash meets new Pokemon and trainers. When he finally finds Richie, they both realize how much they rely on each other. This could also be a chance for Ash to show his loyalty and determination, which are some of his key traits in the Pokemon series.
In many fanfictions, Richie is often portrayed as a very observant character. He notices things about Ash's training style and Pokemon that others might miss. For example, in some stories, he gives Ash valuable advice based on his observations.
In some fanfictions, they can be made brothers. Fanfiction allows for a lot of creative interpretations, and writers might want to explore a different kind of relationship between these two popular characters.
One great Pokemon Ash and Richie fanfiction is 'The Rivalry Renewed'. It delves deep into their relationship post - their initial encounters. It shows how they grow as trainers while still maintaining that healthy rivalry. Another good one is 'Ash and Richie's Joint Adventure' which takes them on an unexpected journey together, facing new Pokemon and challenges.
In a fanfiction plot, perhaps Ash and Richie are twins who were sent to different regions by their parents for some mysterious reason. As they grow up, they both become excellent Pokemon trainers. When they finally meet, they initially compete against each other. But then they realize that together they can achieve more. They might then explore ancient Pokemon ruins together, where they discover secrets about their family and the origin of some powerful Pokemon.
Their relationship could be shown as rivals at first, constantly trying to outdo each other in Pokemon battles. Then slowly they realize their bond as twins and start to support each other.
Obviously, Red and Ash are the main characters. Red is known for his strong Pokemon training skills in the Pokemon games. Ash, from the anime, has his own unique charm and determination. Their relationship as brothers forms the core of the fanfiction. There might also be other supporting characters like their Pokemon, for example, Pikachu which is Ash's iconic Pokemon and maybe Red's Charizard. And perhaps their friends or rivals from their respective storylines could also make appearances to add more depth to the story.
One common theme is the power of brotherhood. They support and protect each other. Another theme is growth. Both Ash and Red grow as trainers and as individuals through their adventures together.