The main characters would be the scientist who conducts the experiment that shrinks the woman. The woman herself is a key character as she has to endure the consequences of being shrunk. There could also be a rival scientist who wants to use the woman's situation for his own gain, or a friend of the woman who tries to rescue her from the scientist's laboratory.
The scientist is surely one of the main characters. He is the one driving the plot with his actions. The woman is the victim of his experiment. Additionally, there could be a janitor in the laboratory who discovers the shrunken woman and has to decide whether to help her or tell the scientist. There might also be the scientist's mentor, who hears about what has happened and comes to the lab to either help fix the situation or scold the scientist for his irresponsible actions.
Maybe the scientist is doing some experiments and accidentally shrinks a woman. Then the woman has to face a whole new world full of challenges like huge objects and tiny spaces.
In the 'Shrinking Woman Story', the woman herself is the central figure. But depending on the genre, there could be other characters. If it's a mystery - based story, there could be a detective - like character who is trying to figure out the cause of her shrinking. Or if it's a coming - of - age - type story within the context of the shrinking, there could be a friend or a mentor figure who helps the woman come to terms with her new situation and grow in different ways despite her shrinking size.
Perhaps it's a genetic experiment gone wrong. The scientist might be trying to manipulate genes related to body size and hormonal regulation. If something goes haywire during the process, it could lead to the woman's overall shrinking while her breast tissue, which is more sensitive to hormonal changes, starts to grow abnormally. It could also be part of a science - fiction scenario where the woman is exposed to some strange radiation or energy source in the scientist's lab that causes these physical changes.
Not having details about the specific'sw shrinking woman story', we can only hypothesize. The shrinking woman is likely the central character. If it's a story set in a more normal, non - magical world, perhaps there is a doctor or a researcher who is trying to understand and reverse her condition. There might also be a love interest who stays by her side through all the difficulties, adding an emotional and romantic aspect to the story.
There could be other characters too. Maybe there's a friend or a family member who witnesses the changes in the woman and the man. However, the central characters are probably the growing woman and the shrinking man as they are the ones whose growth and shrinkage form the core of the story.
Well, the little sister is the central character. Then there could be her parents who are initially clueless about what has happened to their daughter. There might also be a friendly neighbor kid who has a lot of knowledge about strange phenomena and joins in the quest to help the shrinking sister. And let's not forget the little sister's best friend from school who, when she finds out, comes over to offer moral support and some out - of - the - box ideas to solve the problem.
Obviously, the boy is one of the main characters. And there could be a wizard or a fairy in the castle who either caused his shrinking or can help him.
Since I don't know the exact story, it's hard to say. But it's probably the woman who is shrinking.
Based on the title, it seems the main character is the woman who is shrinking. Presumably, she is the one around whom the story revolves.
In the 'slow shrinking woman story', the main character is likely the woman herself. She is at the center of the story as her shrinking is the main plot device. There could be other characters around her, like her family or friends who might react differently to her situation. Her family could be in a state of shock and try to find solutions, while her friends might distance themselves out of fear or confusion. All these interactions would revolve around the main character, the shrinking woman.