No Mu-Jin (Jung Kyoung-Ho) is a labor attorney. He doesn't have a sense of justice or social consciousness. His job is a just a way for him to make a living. While he is going after corruption in the labor field with a YouTuber, No Mu-Jin finds himself at the verge of death. Since then and to survive, No Mu-Jin solves labor problems requested by ghosts. As he works on these cases, he also grows as a person and a labor attorney.