I don't know as I haven't read the story. It could be a young person going through confirmation, or perhaps the person who gives the suit as a gift.
Since I haven't read 'the confirmation suit short story', it's hard to say. But it might include the person wearing the suit for the confirmation. There could also be family members involved, like a parent or grandparent who has some connection to the suit, either in choosing it or having some emotional attachment to it.
Since I don't have access to the actual short story, it's difficult to say for certain. However, it might be a story that uses the concept of a suit in the context of a confirmation. For example, it could tell the story of a young person who is getting confirmed and the suit they wear is a gift from someone special. The suit could then be a link to different emotions, relationships, and events in the story. It could be a story about self - discovery, with the suit playing an important role in the character's journey during the confirmation time.
I'm not certain who the author of 'the suit short story' is. There are so many short stories out there. It could be an unknown author or a relatively new writer trying to make a name for themselves.
The main characters in 'Suit Life Visual Novel' could be a diverse group. There may be a designer who is on a quest to create the perfect suit, a model who showcases the suits, and a customer who has a special connection to suits due to a personal or family history. These characters' lives and interactions would form the core of the visual novel's story.
Since I haven't read it, I can't say for sure. But it might have a protagonist who is the 'angel in the devil suit' and perhaps some supporting characters who either help or hinder this character in their journey.
Since I don't know the details of this 'the bad boy in suit novel', I can only assume. There would surely be the titular bad boy in a suit. There could also be a mentor - like figure, someone who tries to guide him towards the right path. And of course, there would probably be some rivals, either in his work or personal life, who add conflict to the story.
The main character is the man in the gray flannel suit himself, of course. But there are also likely other characters like his family members, colleagues, and bosses.
Often, there's the victim who gets stuffed in the suit. This character could be an employee who made the wrong move in the haunted pizzeria. And then there are the animatronics like Freddy, Bonnie, and Chica which are usually central to the story as they are either the cause of the stuffing or part of the horror that the stuffed character experiences.
As we don't know the details of the story, the main character is presumably the man in the suit.
Based on just the title, it's likely the man in the black suit is the main character.
I'm not sure specifically who the main characters are in '100 short story' as it's a rather general title. It could have a wide variety of characters depending on the nature of the short stories included. It might have ordinary people, heroes, villains, or even animals as main characters.