Shim Eun-seok, portrayed by Kim Hye-soo in “Juvenile Justice,” is an elite judge at the Juvenile Court in Yeonhwa District. Known for her cold and distant personality, she harbors a strong dislike for juvenile offenders due to a personal tragedy in her past. Her fierce and charismatic presence in the courtroom is matched by her unconventional methods of administering justice. Despite her harsh demeanor, she grapples with balancing her firm beliefs on punishment with the complexities of each case, making her a compelling and multifaceted character.