Without reading the '365 days sequel story', it's difficult to say who the main characters are. But if it's a sequel, chances are it will feature the main characters from the previous story, perhaps with some new characters added to spice things up.
Since it's a sequel, it probably has the main characters from the original 'A Christmas Story'. So, there might be Ralphie, his parents, his little brother, and his friends. However, there could also be new characters that become important in the sequel's plot, like a new neighbor or a teacher at Ralphie's school.
I'm not familiar with the '91 days story' specifically, so I can't name the main characters. However, they might be individuals with different personalities and goals. There could be a protagonist who drives the story forward, and perhaps some supporting characters like friends, family, or colleagues who interact with the main character during the 91 days.
There are several main characters in the '19 days story'. For example, Jian Yi and Zhan Zheng Xi are among the important ones.
Most likely, the original main characters from 'A Christmas Story' will return. So, we can expect the boy who wanted the Red Ryder BB gun to be one of the main characters again, now probably as an older version of himself.
The children of the original couple. They could inherit the charm and the values of their parents in terms of love and relationships.
The main character is likely to be the boy from the original story, now grown up. He'll probably be at the center of new Christmas - related experiences.
In 'Kagerou Days Story', one of the main characters is Shintaro. He is a NEET type of character at the start but his life changes drastically. Kido is another key character. She is strong - willed and her power is significant in the group. Kano is a rather mysterious character. His actions and true nature are slowly revealed throughout the story. And Marry, she has a unique connection to the strange events in the story. All these characters together create the rich tapestry of the 'Kagerou Days Story'.
I don't know the main characters in the 'nero days story' without more information.
I'm sorry I don't know the exact main characters in it. But usually in a sequel, the main characters from the first part would likely still be central, like the hero and the heroine if it's a love - based story.
Without reading the story, it's impossible to accurately name the main characters. However, common character types in stories with a waiting theme could include a lonely individual waiting for connection, or a person in a desperate situation waiting for help. It could also be a group of people waiting for a common event to occur, and within that group, there might be a leader - type character who is more vocal about the wait or more affected by it.