In the 'ju on original story', the main characters are often ordinary people who get caught up in the horror of the curse. There may be a young couple looking for a new place to live, and they unknowingly choose a place that is haunted. They then become the central figures as they face the various manifestations of the curse. There could also be an old - timer in the story who has some knowledge about the curse but perhaps not enough to stop it completely. This person might play an important role in trying to help the victims understand what they are up against.
I'm not entirely sure, but there are usually victims of the curse.
The main characters often include those who are affected by the curse in the 'ju on original story'. There could be a family that moves into a haunted house, not knowing what awaits them. So the family members would be main characters as they experience the terrors of the curse first - hand. Also, there might be some sort of antagonist in the form of the spirit or entity that is causing the curse to spread, though it might not be a traditional villain in the sense that it has its own tragic backstory that led to its vengeful state.
In the 'ju on origin story', Kayako is a key character. She was a victim of domestic violence. Her husband was very cruel to her. And then there's Toshio, her son. His presence also plays an important role in the origin story. His relationship with his mother and the events that happened to them both contribute to the formation of the curse that is Ju - on.
In the original 'Alice's Adventures in Wonderland', the main characters are Alice, the White Rabbit, the Cheshire Cat, the Mad Hatter, and the Queen of Hearts.
If it's a different '300 original story', perhaps the main characters are the leaders of the 300. For example, if it's a group on a quest, the ones who are in charge of leading the 300, making decisions, and guiding them through the various trials and tribulations would be the main characters.
It's a horror - related story. It often involves elements like vengeful spirits and a dark, foreboding atmosphere.
Without more details about this story, it's difficult to determine the main characters. However, it might include a character who is a bit of an outcast at first. This character could be someone who is new to the community or a child who feels different. Through the events of the Christmas story, they become integrated into the Christmas cheer and learn to belong. It could also have a character like a Christmas angel who helps the others realize the beauty of the season.
Often, there is a protagonist who stumbles upon the haunted situation. It could be a young person exploring an old place. And then there might be a secondary character, like an old caretaker who warns the protagonist about the ghost.
The main character in the 'the ring original story' is a female investigator. She is curious about the deaths related to the videotape and gets involved in the whole cursed situation. There is also the presence of some of the victims of the videotape curse, though they are more like catalysts for the main character's investigation.
In the 'belle original story' (assuming it's Beauty and the Beast), the main characters are Belle and the Beast. Belle is a kind and intelligent young woman, while the Beast is initially a cursed prince with a frightening appearance.
The main characters are Superman/Clark Kent. Also, Lois Lane who is a journalist and often in the middle of the action. And Superman's adoptive parents, the Kents, are important too.
Since I don't know the 'borrasca original story', I can't say who the main characters are.