She had long brown hair which was tied back into a bun. With black, dull eyes with heavy bags underneath similarly to Sangwoo.
She wore a black skirt, a beige short sleeved t-shirt and a red apron which appears to be worn and dirty.
Her body was covered in bruises as a result of her husband's abuse.
Outwardly, she appeared to be a kind, caring mother towards Sangwoo. For example, she looked after him when he was sick. Acting as a sanctuary for Sangwoo against his violent, abusive father. However, she was very paranoid especially when it came to her husband and his "secrets", becoming suspicious when she found Sangwoo's love letter.
Her relationship with her husband has mentally scarred her. She appeared somewhat defiant towards him as she protected Sangwoo during a violent outburst and told Sangwoo that his father is "wrong". However, in contrast she fantasized about when she first met him, saying that she was "happy" as she dances in trance like state.
The Mother of Oh Sangwoo, the secondary Protagonist and primary Antagonist of Killing Stalking.