I'm not sure specifically who the main characters are without more information. But they could be ordinary people who were caught in an extraordinary situation, like a hiker or a group of hikers in a mountain storm.
Since we don't have a lot of details about the 'infinite storm real story', the main characters could be adventurers. They might be people who were exploring an area and then got trapped in this infinite storm. It could also be local residents who were suddenly faced with this unexpected and unending storm and had to fight for their lives.
The main characters in the 'infinite storm real story' could be various types of people. It could be a lone traveler who was on a journey through a remote area when the storm hit. Or it could be a team of rescue workers who had to brave the infinite storm to save others. Without more knowledge about the story, it's hard to be certain, but they would most likely be people in a situation where they are up against the powerful forces of nature.