As crimes committed by minors get more violent and cruel, the offenders usually escape any serious types of punishment. Sim Eun-Seok (Kim Hye-Soo) is an elite judge with a personality that seems unfriendly to others. She hates juvenile criminals. Sim Eun-Seok gets assigned to a local juvenile court. There, she breaks custom and administers her own ways of punishing the offenders.