As I don't know the particular 'the crush short story', I can't say for sure. But likely there would be the person with the crush and the person who is the object of the crush.
Without more context about 'the crush short story', we can only guess. There might be a protagonist who is the one having the crush. This character could be a teenager, dealing with the intense emotions that often come with that age. The other main character could be an older person, like a teacher or an older neighbor, which would add a different dynamic to the story. Or it could be two peers at school or work, and their relationship within that social environment would shape the story.
The main characters in a 'secret crush side story' can vary greatly. There could be a young student who has a secret crush on their teacher, in which case the two main characters are clearly defined. Or it could be two colleagues at work, where one has a secret crush on the other. The characteristics of these characters would depend on the context of the story, whether it's a high - school setting, a workplace drama, or something else entirely.
There's no official set of main characters for a general 'Candy Crush Love Story'. But it could be two players, like a male and a female player who we can name Tom and Lucy. Tom could be the more experienced player who helps Lucy out.
I don't have enough information to tell you the exact main characters in this side story. It could be the same main characters from the original manhwa, or it might introduce new ones.
The obvious main characters would be the little sister herself. She could be a sweet and curious girl. And of course, her crush. He might be an older boy in the neighborhood, like a teenager who is kind and helpful. There could also be a villain, perhaps an evil wizard who caused the shrinking in the first place.
I'm unable to tell you the main characters of the 'secret crush on you novel' without having read it. But based on the theme, one main character would be the one harboring the secret crush. This character could be an ordinary person with their own insecurities and dreams. The other main character might be the one who is the focus of the crush, who could have their own personality traits that attract the first character, like being kind, intelligent or having a great sense of humor.
Since I don't know the specific 'apple crush graphic novel', I can't say for sure who the main characters are. They could be young people, perhaps a girl and a boy where one has a crush on the other and the apple has some significance in their relationship.
Since I haven't read 'crush the book graphic novel', it's difficult to say. However, it might have a group of characters. For example, there could be an artist who uses their art in the graphic novel to fight against whatever the 'book' represents, and a sidekick who helps them in this mission.
I'm not sure specifically as I don't have detailed information about this 'idol crush visual novel'. But generally, there would likely be the idol as a main character, and perhaps a fan or someone who becomes involved with the idol in some way.
I'm not sure as I haven't read 'they short story'. It could be a group of people named 'they' who are the main characters. Or it could be that 'they' refers to a particular type of people within the story.
I'm not sure specifically who the main characters are in '100 short story' as it's a rather general title. It could have a wide variety of characters depending on the nature of the short stories included. It might have ordinary people, heroes, villains, or even animals as main characters.