Since I don't know the specific 'game of destiny novel story', it's hard to say. But typically, there might be a hero or heroine who is at the center of the action, trying to figure out their destiny.
In a 'game of destiny novel story', there could be a diverse range of main characters. There might be a wise old mentor figure who has some knowledge about the game of destiny. There could also be a rival character, someone who competes with the protagonist in the game, either for power or to achieve a better destiny. And of course, the main character, who could be an ordinary person thrust into this extraordinary situation of a game that decides their fate. They would be the one driving the story forward, making decisions that shape not only their own destiny but also those around them.
The main characters in a 'game of destiny novel story' could vary greatly. There might be a group of young adventurers who are all participants in the game of destiny. One could be a brave warrior - type character, always ready to face physical challenges in the game. Another could be a more cerebral character, good at deciphering the rules and riddles of the game. And then there could be a character with a mysterious past, whose secrets are somehow related to the game of destiny. Their interactions and individual quests within the game would form the core of the story.