Although Cinderella is the obvious choice, it could be that the main character is actually a new character added to the Cinderella universe in this fanfiction. However, this new character's story would still be intertwined with Cinderella's. The 'pitter patter of little feet' might be something this new character hears when Cinderella is around, and it sets off a chain of events that the story then follows.
It could also be that the main character is Cinderella, but from a different perspective. Maybe it's Cinderella as seen through the eyes of an animal she befriended when she was young. The 'pitter patter of little feet' would then be how the animal remembers her as a child, always on the move, full of energy and curiosity.
It could be about Cinderella's experience when she was a little girl. Maybe it focuses on the early days when she was still living with her father and before her stepmother and stepsisters came into her life. The 'pitter patter of little feet' might symbolize her innocent and carefree self at that time.
A little girl with unusually big feet for her age. She might be self - conscious about her feet at first. But in the story, when she enters a fantasy realm, her big feet become an advantage. Maybe there are little critters in this realm that love to tickle big feet, and she has to work with them to save the realm from a dark force.
The fairy godmother could still be a main character. But instead of just magically solving all of Cinderella's problems, she could be more of a mentor, teaching Cinderella how to be strong and assertive.
Most likely, Serpentina could be one of the main characters. Since the fanfiction is named after her, she is probably central to the story. It could be that she is a unique or powerful being, and the story unfolds around her actions and the interactions she has with others.
It could be an original character created just for the fanfiction. A girl with a spunky personality, who is full of energy and has a big heart. Maybe she has a unique style, like she loves to wear mismatched socks and big floppy hats.
Huey could be the main character. Given his intelligent and often idealistic nature, he is likely to be involved in situations where a small misstep could lead to a complex chain of events. His strong beliefs might cause him to make a mistake while trying to uphold justice or educate others.
Aria could be a great main character for a redemption fanfiction. She had her own secrets and moments of dishonesty in the original series. So, in the fanfiction, she could be on a journey to be completely honest with everyone, especially her friends and family, and make up for the times she wasn't.
The prince would surely be one of the main characters. After all, he is Cinderella's husband and the father of the baby. He would play a crucial role in the story, such as providing support to Cinderella during the pregnancy and helping to raise the child.
Well, it could also be that the stories themselves are like a character in a way. Since they are having such an impact on the little girl, they could be seen as a main element, almost like a character, in the whole scenario. But still, the girl is the one through whom we experience the stories, so she is the main character.
The stepmother is an obvious choice. In a time - twist scenario, she could use her knowledge of the past to try and prevent Cinderella from ever going to the ball in the first place. Maybe she finds a way to change the events that led to the fairy godmother helping Cinderella.