Kim Ga-on is a fictional character from the South Korean television series The Devil Judge. He is portrayed as a young and idealistic judicial officer who seeks justice in a corrupt society. His character is central to the show's exploration of morality and the legal system. Throughout the series, Kim Ga-on grapples with his beliefs and the challenges posed by the authoritarian figure of Kang Yo-han, the show's main character. As the story unfolds, he becomes increasingly involved in the high-stakes courtroom drama, highlighting themes of power, justice, and personal integrity.