This series revolves around a mother who returns to school to help her daughter, who is being bullied. Oh Ah Ran is a high school student who becomes a target while trying to save her friend from the torment of bullies. Jo Kang Hee is her mother, who was once a victim of bullies in Busan and became pregnant at a young age, giving birth to her daughter. When she hears that her daughter is being bullied at school, she decides to get involved and changes her identity to enroll as a high school student at her daughter's school to find a solution to this issue.














