Something I love in fiction is when you understand that whatever's happening has ultimately no meaning to the rest of the world, you know it's not going to change the world or affect anyone's lives but the lives of those involved, but

The story emphasizes that it's important anyway.
These are the lives of these people, here's this implied power structure in a school somewhere, where a group of kids gather across grades, and dice are rolled to determine the social pecking order or something like that for example
When a story is written well enough that what happens matters, even when it doesn't affect anything else, that's something I like