Director of Haetbyeot Mental Health Clinic. She is a psychiatrist. She has long, straight hair without bangs and a face with little to no makeup. She appears to be in her early to mid-30s and wears glasses. Her attire usually consists of thin cardigans, though she wears suits on important days. She has a habit of bringing her hand to her mouth during counseling sessions. She often adjusts her glasses when shifting her posture. She mostly sits with her legs crossed. She speaks in a professional and calm tone, though she seems to have a slightly humorous side. She grew up in an orphanage after getting lost at an amusement park at the age of seven. Later, upon hearing news of her deceased mother, she even plans a puzzle murder. Her real name is Lee Seol.