Once a month, students at Baekyeon Girls' High School cast their votes in a popularity poll. The result? A brutal ranking system that determines the entire social hierarchy of the school. Sung Su Ji has just transferred and scores a zero. After starting at the bottom and becoming a target of school violence, can Su Ji make her way to the top of the pyramid? Or will she topple the game altogether? ~~ Adapted from the webtoon "Pyramid Game" (피라미드 게임) by "Dalgonyak" (달꼬냑).