Since I don't know the exact 'blueberry graphic novel', I can't say for sure. But it's likely that Blueberry herself is a main character. There may also be her friends, family members, or some antagonists who oppose her in some way.
I'm not sure specifically what 'blueberry graphic novel' is about as there could be many with this name. It might be about a character named Blueberry, perhaps her adventures, relationships or some sort of mystery she gets involved in.
Well, the blueberry girl herself is obviously a main character. She's usually the center of the story with her unique traits. There might also be a sidekick, like a little talking animal that accompanies her on her adventures.
Given the name 'blueberry boy story', the central character is no doubt the boy. But there could be other supporting characters. If it's a story about the boy's family business of growing blueberries, then his parents would be important characters. They could be teaching him the trade, passing on family secrets about blueberry cultivation. There might also be a local merchant who buys the blueberries from the boy's family, adding an element of commerce to the story. And if the story has a touch of magic, there could be a fairy or a spirit that guards the blueberry patch and has an interaction with the boy.
Since I don't know the exact 'blueberry girls story', it's hard to say. But likely, the main characters are the blueberry girls themselves. There could also be supporting characters like their parents, friends in the neighborhood, or an old wise person who gives them advice related to blueberries or their adventures.
Since I don't know the exact 'blueberry girl story', it could be the blueberry girl herself as the main character. Maybe there's also a wise old owl that gives her advice on her journey.
Since I don't know the exact 'blueberry girl expansion story', it's hard to say for sure. But most likely, the blueberry girl herself would be a main character. There might also be characters like her family members, if the story is about her family life and how blueberries are part of it. Or perhaps there are friends she has who are involved in her blueberry - related adventures.
I'm not sure specifically as I haven't read the 'Blueberry Days' short story, but they could be local farmers who depend on the blueberry harvest for their livelihood. Or perhaps a young child who discovers the joy of blueberry picking during a summer visit to the countryside.
According to the information provided, the Blueberry novel I recommend is called Survival on the Road: Starting from Upgrading Resources. The female protagonist of this novel was surnamed Xia, and she fulfilled the requirements of sci-fi/evolutionary mutation, management, gaming, calmness, decisiveness, and caution. This novel can be read on Qidian Chinese website.
I'm not sure which specific 2019 graphic novel you're referring to. There are so many different ones out there, each with its own set of main characters.
There's no way to tell without having read the '442 graphic novel'. It could have a protagonist who is a detective trying to solve a mystery related to '442', or it could be a group of friends whose lives are changed because of something to do with '442'. Maybe there's a strong female lead or a young hero in the story.