Struggling with her finances, Oh Yi-young reluctantly returns to resident life — making blunder after blunder. Soon, she faces her first patient crisis.

The first-year residents contemplate quitting after burning out from hospital life. When Yi-young is backed into a corner, Ku Do-won comes to her aid.

As Um Jae-il receives constant compliments, Yi-young, Pyo Nam-kyung and Kim Sa-bi try to find ways to bring comfort to their own patients and families.