In this game, students have to vote for five students. The number of votes will then decide who comes under which group, including Groups A, B, C, and D. But if any student fails to receive even one vote, they will fall under Group F. It means that all the other students can bully them whenever they want and however they want. The bullying then leads to extreme school violence. That day of Pyramid Game, Sung Soo-Ji does not get any votes and becomes a Group F student.