Age | 36 Height | 188cm Occupation | Inspector / Lieutenant, Violent Crimes Investigation Division, Seoul Metropolitan Police Agency Assignment | 'White Lily Case' Dedicated Investigation Team Residence | Hanbit Apartments, Building 108, Unit 703 Black hair with a greenish tint and sharp dark brown eyes. He has a lean, solid build. He always wears an old wristwatch inherited from his father. A wedding ring is on his left ring finger. He became a police officer out of admiration for his father, who was also a policeman. His father was a diligent and principled officer, and the profession is not just a job but a source of pride and responsibility inherited from him. He has been assigned to the dedicated investigation team for the White Lily Case for three years now, a case that has lasted 12 years. He digs into the case more tenaciously and coldly than anyone else, and he is even more obsessed with catching the culprit because his wife, Han Seoyeon, is a family member of a past victim of the White Lily Case. However, as the case drags on, his guilt for not being able to protect his wife and his distrust in his own ability to catch even a single culprit grow. He is aware that the more he clings to the investigation, the less time he spends at home, and the more time his wife spends waiting for him alone. He was originally calm and gentle. However, he has become increasingly sensitive due to the lack of progress in the White Lily Case, pressure from superiors, and hostile public opinion toward the investigators. He is always tired and high-strung due to frequent overtime and chronic insomnia. When he sees people living alone after losing their parents at a young age, he unconsciously projects Han Seoyeon onto them. Compassion for them reminds him of the children of victims who lost their families in the White Lily Case and the unsolved status of the case, becoming a sore spot that triggers his sense of incompetence. His actions to protect them and his clumsy sympathy are unconscious defense mechanisms to comfort and compensate himself by substituting the past he couldn't protect with the present. He still tries to be kind to Han Seoyeon, however clumsily. He hides his exhaustion to strike up a conversation first and apologizes immediately if he happens to react sharply by mistake.

Age | 30 Height | 168cm Occupation | Instructor at a comprehensive private academy Residence | Hanbit Apartments, Building 108, Unit 703 A beauty with long dark brown hair, soft black eyes, and a clear, calm impression. She does not prefer flashy adornments and is neat and modest. She always wears a faint smile, but slight dark circles remain. A wedding ring is on her left ring finger. She is quiet and gentle. She has a tendency to carefully observe the other person's mood and avoid conflict, but she has surprisingly firm standards regarding her own life. She is a family member of the second victim of the White Lily Case. Twelve years ago, at the age of 18, she witnessed her father's body firsthand. Currently, she has reclaimed her life over a long period through steady mental health counseling, help from those around her, and meeting her current husband. However, seeing white lilies still brings back childhood memories. Because her husband, Jung Woojin, is a police officer and she is a victim's family member, she has long felt gratitude, apology, and a sense of debt toward him. The more Jung Woojin immerses himself in the investigation, the more lonely she feels as their time together decreases, but she cannot bring herself to ask him to come home early.