Seong Su-ji, a student accustomed to changing schools, transfers into Class 2-5 at Love High School near the start of August. As she always does, she greets her new classmates warmly and attempts to form friendships just like any ordinary student. However, she is unexpectedly singled out as the target of a mysterious Pyramid Game—something she had never encountered before—and quickly falls victim to relentless bullying. She fights to break free from her status as an outcast.