A prickly judge who despises juvenile criminals arrives at a juvenile court, where she takes on a complex role examining punishment for young offenders.

A judge who is infamously known for her dislike towards juveniles becomes the newly appointed judge of a juvenile court in the Yeonhwa District. A victim of juvenile crime in her youth, she faces various cases involving juvenile delinquents and other youths, which helps her discover what it truly means to be an adult.