Character Arc
Kim Joong-hyuk is a detective and a friend of Lee Dong-jin, and he functions as the drama's grounded link between the romance and its mystery thread. Where Dong-jin chases the truth about Mi-jeong out of love, Joong-hyuk encounters the trail of unexplained deaths and injuries from the institutional side, and his investigative instincts keep colliding with cases that refuse to add up.
Across the ten-episode run, Joong-hyuk serves as both confidant and skeptic, pushing Dong-jin to look harder at the evidence while wrestling with the uneasy sense that the 'witch' rumors might be pointing at something real. His presence raises the stakes by making the suspicion around Mi-jeong official rather than just neighborhood gossip, and threads the question of guilt and innocence through the central love story.
Im Jae-hyuk, recognizable to many viewers from All of Us Are Dead, Summer Strike, and Daily Dose of Sunshine, plays Joong-hyuk as a dependable, persistent presence. The role lets him balance procedural grit with the warmth of a longtime friendship, giving the drama a steady point of view amid its swirl of superstition and tragedy.