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.
Well I mean first off if everyone on the train was there you would want to discuss how to procede given the unknown part. I think the one person has it right in that I can’t think of something like it before narnia.