Follows the medical residents from the Jongno Yulje Medical Center.
Cast:Go Youn-jung , Shin Si-ah , Han Ye-ji , Kang You-Seok , Cha Kang-Yoon , Lee Chang-hoon , Yuuki Luna , Eugene Ko , Cecilia Kim , Jung Joon-won , Jung Woon-Sun
Facing financial hardship, Oh Yi-young goes back to residency, making mistake after mistake, until she encounters her first patient emergency.
Exhausted first-year residents consider leaving their positions. Yi-young receives help from Ku Do-won when she faces a difficult situation.
While Um Jae-il gets many compliments, Yi-young, Pyo Nam-kyung and Kim Sa-bi seek methods to comfort their patients and families.
Yi-young joins Prof. Seo's research paper, making Sa-bi jealous, while Nam-kyung causes hospital floor tensions through misguided actions.
Yi-young's direct nature causes problems but helps her console a patient's child, while Jae-il's perfectionism annoys others.
Yi-young becomes defensive after seeing Do-won get snubbed. Sa-bi and Nam-kyung continue to clash due to their opposing views.
Fed up with other departments, OB-GYN residents resist. Nam-kyung grows annoyed while supervising an intern.
After a work hospitalization, Sa-bi deals with Fear Of Missing Out. A new patient challenges Nam-kyung's patience and empathy.