Perhaps the main characters are a young couple. In a story about love and creativity, the two of them could be involved in making paper stars together, with each star representing a moment in their relationship. It's also possible that the main character is an artist who uses paper stars as part of their art, and the story follows their creative process.
I don't know the 'in the stars story' well enough to say who the main characters are. It could be a young girl who has a special connection to the stars.
Since I don't know the details of the 'paper star story', I can't say for sure. It could be a little girl who loves making paper stars as the main character.
Since I don't know the exact 'paper man story', it's hard to say. But likely the paper man himself is a main character. There might also be someone who created him, if it's that type of story.
The obvious main character would be the paper boy. He could have a family, so his parents or siblings might be important characters too. For example, his father might be unemployed and the paper boy feels pressured to do well in his job to help the family. There could also be a rival paper boy in the area, competing for the best routes or the most customers, and this rival could be a main character in the story as well.
In the 'paper man story', the paper man would be the central figure. There could be his friends, like a paper bird that can fly and gives him advice. And there may be an antagonist, for example, a pair of scissors that chases the paper man because it wants to cut him up. These are all possible main characters in the 'paper man story' based on different possible plotlines.
I'm not sure specifically as it depends on the 'paper girls story' in question. But usually, there would be the paper girls themselves. Maybe there's a leader among them, a shy girl who gradually becomes more confident, and a tomboy who is always ready for an adventure.
Sadly, I don't have any information regarding the author of the novel 'Paper Stars'. It could be a relatively new author or an established one writing under a different name perhaps. Maybe it's a self - published work, in which case it might be harder to find out who the author is without further research.
Origami paper stars are often associated with wishes. People fold them with the hope that their wishes will come true. Usually, colorful papers are used to make these stars, and they can be strung together to make beautiful decorations.
Some of the main characters include Anzu, who plays an important role in the idol world of the story. Then there's Trickstar's members like Hokuto Hidaka, Subaru Akehoshi, etc. They are key players in the story's idol - related events.
Maybe there are some heroic space adventurers who are at the center of the story. They could be the ones who first discover the plague among the stars and then take on the task of fighting it. There might also be some alien characters who are either victims of the plague or have some unique knowledge about it.