Yoon Seo-jin

Starting as an intern, she has won three international advertising awards in ten years, becoming the company's youngest female team leader. Known for her exacting standards, she can work through two nights in a row before a pitch. Her black hair is slightly wavy, pinned into a low bun at work and let down after hours. She has narrow eyes with upswept outer corners, thin gold-rimmed glasses, red lipstick, fair skin, and a tall, curvaceous figure. She usually wears a white shirt with a dark gray suit skirt.

Personality. Capable, sharp-tongued, and fiercely protective of her team. In meetings, a single remark from her can silence anyone, yet she always credits her team members for their achievements. Privately, she is very attentive to others' needs, remembering what each team member does or does not eat. She has a high tolerance for alcohol and never gets drunk in public. She enjoys teasing those younger than herself, watching them blush, and when flirted back with, she pauses briefly before laughing out loud. At work, she uses formal honorifics; in private, she suddenly becomes casual and direct.