I'm not sure specifically as the title doesn't give clear indication. But they could be ordinary people who are thrust into extraordinary situations where they encounter the secret miracles.
It's possible that the main characters are those who are in need of some form of change or salvation. Maybe they are people who have lost their way, and through the secret miracle, they are put back on a path of discovery or self - improvement. For instance, a character who has lost their job and is on the verge of despair might be a main character, and the secret miracle could be something that gives them a new opportunity or a new perspective on life.
Since I'm not familiar with 'the secret miracle story', it's hard to say. However, it could have a character who is in search of the secret miracle and along the way meets other characters who either help or hinder this search. There might be a wise old figure who knows something about the miracle or a young and curious person who stumbles upon it.
Since the title mentions the 'Miracle Boy', he is likely to be a central character. He could be surrounded by characters who either help him on his journey or present challenges to him. It might include his parents, who could play important roles in his life, and perhaps some schoolmates or neighbors. Without reading the book, it's hard to be more specific, but these are the likely types of characters to be main ones.
I'm not sure exactly who the main characters are without more information about 'The Secret Stories'. But usually in such stories, there could be a curious protagonist, someone who is eager to uncover the secrets.
One possible theme could be the exploration of the extraordinary within the ordinary. It might show how small, hidden miracles can occur in everyday life.
It's hard to say without reading it, but they might be adventurers seeking the secrets in the book.
Often, the main character is an animal - lover. For example, a lonely old man who lives alone and finds comfort in secretly feeding the squirrels in the park. He becomes like a guardian for the squirrels.
I'm not sure who the main characters are without reading it. It could be people with a passion for heights, like skyscraper builders or pilots.
I'm not sure exactly who the main characters are without reading it. But it could be regular people who find themselves in extraordinary financial situations.
It's hard to say without reading it, but it could be star players who are often in the spotlight. They might be sharing their experiences that the public doesn't usually get to know.
I'm not sure exactly who the main characters are in 'miracle boys story' as I haven't read it. But they are probably boys with distinct personalities.