The main character is surely the 'green girl', but depending on the genre of the fanfic, other characters will be present. If it's a mystery - themed fanfic, there could be a detective character trying to solve a mystery related to the 'green girl'. Or if it's a fantasy - based fanfic, there might be magical creatures or wizards that are part of the story and interact with the 'green girl'.
Since I don't know the exact story, I assume the main character is the girl who wears the green ribbon. There may also be other characters like her family members, friends, or people in her community who interact with her because of the ribbon.
The girl with the green ribbon is the key character. Then, there could be characters such as her parents who might have some influence on her and the ribbon. Also, there may be a love interest or a curious neighbor. These characters play important roles in the story as they either contribute to the mystery of the green ribbon or are affected by the girl's situation regarding the ribbon.
The main character in 'pokemon green oak fanfic' is Professor Oak. However, depending on the plot, other characters could become important too. For instance, if the story is about Oak's role in a Pokemon tournament, then the trainers participating in the tournament would be key characters. They could be new characters created specifically for the fanfic or well - known characters from the Pokemon franchise. There might also be Pokemon themselves that play significant roles, like Pikachu if it has a special connection to Oak in the fanfic.
The hero girl and the green magician are the main characters. The hero girl might be a brave and determined character, perhaps with some latent powers. The green magician, on the other hand, is likely to be a character with strong magical abilities related to the color green, which could imply something unique about his magic, like being related to nature or healing magic in some way.
As I haven't read it, I can't say for sure who the main characters are. But I assume there would be the girl herself, and perhaps her friends or family members who play important roles in her story.
There could be new original characters created specifically for this fanfic. They might be friends or foes of the girl Kirby. Maybe there's a group of characters who are initially skeptical about a girl Kirby but then come to accept and admire her. And of course, characters like King Dedede could also be part of the story, adding to the drama or humor.
Since I don't know the exact 'green girl story', it could be a girl named something like Lily or Ivy who is given the title 'green girl' because of her love for nature or a green - related trait.
I'm not aware of 'the green girl story', so I have no idea about the main character in it. You might look for reviews or summaries online to find out.
Since I haven't read the fanfic, I can only guess. Obviously, Professor Oak would be one of the main characters as the title implies. There might be a young trainer who has a connection to either blue or green Pokémon (maybe they specialize in water or grass types) and is the one who has to decide whether to forgive Prof Oak.
Maybe Green Bug, a tiny but brave insect, and Red Bird, a beautiful and intelligent bird. The lemon in this case could be a huge lemon that they both see as a source of shelter or food. Their different approaches to using the lemon create a story full of conflict and resolution as they learn to co - exist.