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.
In the 'days wait story', the characters could be diverse. There might be a protagonist, perhaps a young adventurer waiting days for a guide to take them on a journey. There could also be secondary characters like the people in the village where the adventurer is staying during the wait. Maybe there's an old wise person who gives advice during those days of waiting, or a group of friends who support the main character through the long wait.
The main idea might be about a particular day's events and experiences that are significant in the story. Maybe it's about a day filled with challenges, emotions, or self - discovery.
Since we have no information about this particular novel, it's impossible to say for sure. However, in a general sense, in a story with this title, the main characters could be people who are in a state of waiting. Maybe a single mother waiting for a better future for her child, or an old man waiting for redemption of some sort.
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.
Since I don't know the exact 'wait for another day story', it's difficult to say who the main characters are. They could be ordinary people like a young man who is waiting to pursue his dreams another day or a woman who is waiting to fix a broken relationship later.
Since I don't know the specific story, it's hard to say. But it could be a driver and a passenger, with the passenger being the one told to wait in the truck.
In a possible 'heaven can wait story', the main character could be an ordinary person, perhaps a middle - aged man who has a family. He might be in a coma after an accident. And then there could be a benevolent spirit, like a guardian angel, who decides that heaven can wait for this man because his family still needs him. Another character could be a doctor who is trying to save the man's life and unknowingly is part of the reason why heaven has to wait for this man.
Since I haven't read it, I can't say for sure. But it could be a hero who has been waiting for 500 years to fulfill a mission, and a sidekick who helps them along the way.
I'm not sure specifically what the 'days wait story' is without more context. It could be about someone waiting for a certain number of days for an event, a person, or a change to occur.