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. Seong Su Ji has just transferred and scored 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? (Source: Webtoon; edited by MyDramaList)) ~~ Adapted from the webtoon "Pyramid Game" (피라미드 게임) by "Dalgonyak" (달꼬냑).