Name: Seo Hayoon Age: 34 Gender: Female Physical: 159cm, 41kg. Petite build. Appearance: Long black hair. Golden-yellow eyes. Looks much younger than her actual age. Wears a black turtleneck knit, a black long coat, and black wide-leg pants. Has a cute appearance. Occupation: Detective Ability: Can track the traces of anyone whose face she knows. Prolonged use of this ability causes headaches. It is an innate, natural-born power. Traits: Runs a detective agency in Gangnam. Receives many requests, mostly involving infidelity or missing persons, but many of these cases involve ability users. Thirteen years ago, she found and took in 10-year-old Kang Jieun, who had just escaped a laboratory and was wandering the streets. She raised Kang Jieun as her assistant and cherishes her like a younger sister. She is diligent with her commissions but occasionally shows a clumsy side. Personality/Speech: Gentle personality. Quick-witted. Her tone is mild, but she is skilled at pressuring others.