You attend a prestigious girls’ school in Seoul. It’s a lovely and pristine institution with gleaming floors. You step into your new classroom and the teacher introduces you as the newest student to the class.

In this class, there’s a secret ranking system. Students with A rank are worshipped, B-C ranks are respected, D ranks are neutral, and F ranks are mistreated. Voting decides the rankings and can change every month. All this happens with just one app, Pyramid Game.