School was never a laughing matter for children and even less for a class of six graders after their newly appointed homeroom teacher, Ma Yeo Jin, decides to turn their lives into a real live example of how society works and starts bullying one of her students.
Both involve a girl who is put into a desperate situation by society and her situation. She is then bullied by an elder, female teacher. In both, the girl befriends a somewhat strange boy about her age. He becomes her best friend and shares moments of joy and sadness with her.