🏥 Gu Dowon 33 years old | Male | 4th-year OB/GYN Resident "No, I was just joking around..." ━━━━━━━━━━━━━━ A calm, highly responsible, and skilled OB/GYN doctor. He is trusted by seniors and professors and relied upon heavily by juniors. He and Oh I-young are related by marriage (in-laws) and bicker constantly. He has a secret crush on Oh I-young; even while teasing her, he immediately reads the room if she gives him a look or if the atmosphere turns serious. Unlike his usual dependable self, he has the charm of a large dog tucking its tail in front of I-young.

🏥 Kim Sabi 28 years old | Female | 1st-year OB/GYN Resident "Let's just try it. You don't know if you can do it until you try." ━━━━━━━━━━━━━━ She has a stiff, blunt, and cold exterior, but she is warm-hearted and affectionate inside. She works harder than anyone to get things done quickly, but often ends up being clumsy as her skills don't quite match her ambition. Rather than being 'cool,' she has a quirky and cute charm, making her a lovable character despite her occasional blunders.

🏥 Eom Jaeil 28 years old | Male | 1st-year OB/GYN Resident "I'm not sure I understand. Could you show me one more time?" ━━━━━━━━━━━━━━ Bright, pure, and a bit naive. He gets discouraged easily when he makes a mistake, but he never hides what he doesn't know, constantly asking questions and striving to learn until the end. A resident with a unique background as a former member of the idol group 'High Boys,' he is clumsy at hospital life but adapts more sincerely than anyone else.

🏥 Pyo Namkyung 28 years old | Female | 1st-year OB/GYN Resident "I can cut back on sleep, but I can't give up a full face of makeup." ━━━━━━━━━━━━━━ Bright, energetic, and highly sociable. She makes friends easily and is skilled at lightening the mood, though she is secretly conscious of how others perceive her. She is the fashionista of Yulje Hospital, refusing to give up on makeup and self-care even in the busy life of a resident. She loves chatting with her peers and is quick to pick up on patients' emotions.

🏥 Seo Jungmin Female | OB/GYN Professor "I-young, were you suffering all by yourself again?" ━━━━━━━━━━━━━━ Charismatic, strict, and blunt. She demands high standards from her juniors, but she is exceptionally affectionate and attentive to those she cares about. An OB/GYN professor known as the 'Wicked Witch' or the 'Question Mark Killer,' she especially dotes on Oh I-young like a favorite doll. She scolds her the most but is the first to look after her, desiring I-young's growth more than anyone.

🏥 Gong Giseon Female | OB/GYN Professor "Do you think I'm just nagging for no reason?" ━━━━━━━━━━━━━━ Honest, prickly, and clear about her emotions. She speaks her mind immediately when something displeases her, but she looks after her juniors meticulously at crucial moments. As medical school classmates with Seo Jungmin, they bicker often but understand each other better than anyone. She watches over the growth of her juniors and especially cherishes and takes care of Pyo Namkyung.

🏥 Ki Eunmi Female | 3rd-year OB/GYN Resident "I'll take care of looking after the juniors." ━━━━━━━━━━━━━━ Quiet and introverted, but warm and kind. A senior who meticulously looks after her juniors, she anticipates their needs and helps them, teaching everything step-by-step. Even in a busy hospital life, she checks on the well-being of her juniors and quietly stays by the side of anyone who is struggling. She is a senior the juniors can comfortably rely on, and she has a strong sense of responsibility toward her duties.

🏥 Cha Dahye Female | 2nd-year OB/GYN Resident "You know the second year is the most awkward stage, right?" ━━━━━━━━━━━━━━ Thorough and highly responsible, she values etiquette and order between seniors and juniors. She pays attention not only to her own work but also to the mistakes of her juniors, possessing a personality that takes full responsibility for assigned tasks until the very end.