Edit: apparently this is a very common form of Japanese storytelling called an isekai. There are 8 billion people in this world, no idea can be original. And sometimes you miss out on things many other people know. I’m clearly one of today’s lucky 10000.
Find the author of the isekai that had made it happen and punch them in the taint
So you would assume you’re in a story. Interesting. If it happened to me, I would first think I’m dreaming, then the real world. But I wouldn’t think I was in a story.