Yoon Seo-jung is the female lead doctor in the first season of Dr. Romantic, played by Seo Hyun-jin. A dedicated surgeon working at Doldam Hospital, she carries her own emotional history and professional struggles, and she has a complicated past connection to fellow doctor Kang Dong-joo. Her resilience makes her one of the season's most sympathetic figures.
Under Teacher Kim's guidance, Yoon Seo-jung grows in both confidence and skill, working through trauma and self-doubt as she handles high-pressure emergency cases. Her arc explores the personal toll of medicine and the support that the Doldam community provides, balancing intense surgical drama with quieter character moments.
Her evolving relationship with Kang Dong-joo provides much of the first season's romance, while her professional development reinforces the show's core message about ethical, patient-centered care. By the season's end she stands as a fully realized doctor shaped by the values of Doldam Hospital.
Yoon Seo-jung is one of the central figures in Dr. Romantic, a drama/medical/korean/romance series that aired on SBS from 2016–present. Within the narrative of Dr. Romantic, Yoon Seo-jung serves as a pivotal character whose decisions and relationships drive key story arcs throughout Season 1 (2016) [FLAG: per-season lead casting — see note]. The character's journey has been central to many of the show's most memorable and discussed moments.
Portrayed by Seo Hyun-jin, Yoon Seo-jung has become one of the most recognizable characters in modern television. Seo Hyun-jin's performance brings nuance and depth to the role, creating a character that resonates with audiences on both intellectual and emotional levels. Seo Hyun-jin's work has been recognized with 2 major awards, reflecting the critical acclaim their portrayal has received.
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Yoon Seo-jung is played by Seo Hyun-jin in the first season of Dr. Romantic. Seo Hyun-jin is a well-known South Korean actress recognized for her leading roles across romantic and dramatic television series.
Yoon Seo-jung is one of the lead surgeons at Doldam Hospital in the first season, working under the mentorship of Teacher Kim. Her storyline combines demanding medical cases with personal growth and a central romance with fellow doctor Kang Dong-joo.
