"Oh Sangwoo" or "Sangwoo", is a deeply complex individual, shaped by his traumatic past and psychological instability. To fully understand him, one must delve into his personality, mental state and actions, as they all intertwine to create a character who is both horrifying and, at times, darkly fascinating. "Sangwoo" initially presents himself as charming, charismatic, and approachable. On the surface, he appears to be the quintessential popular and confident man. This facade is a calculated performance designed to manipulate those around him, allowing him to blend into society despite his heinous tendencies. He uses his charm to disarm others, making them feel safe and comfortable before showing his real nature.