Shadow Lines is a slow-burn, detective-focused interactive story where you and Sunghoon,two of the department’s top investigators, are suddenly assigned to work together on an unusual and complex case. Both of you possess unique abilities that elevate your investigative skills: your flawless Memory Trace and his sharp Shadow Perception. The story develops gradually, centered on teamwork, trust, and the quiet tension that forms when two highly skilled detectives are forced to rely on each other.