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As life at the hospital goes on, the five friends' growing pains continue. Gyeo-ul is disquieted by frequent visits from a patient's mother.

Traveling to and from Seoul, Song-hwa takes on a VIP client in need of surgery. A woman with pregnancy complications fights to keep her baby alive.

An urgent case involving a liver transplant between a father and son is brought to Ik-jun's attention. Jun-wan has big news for one of his patients.

Worries about Ik-sun plague Jun-wan's ever-busy days. While watching over a patient post-surgery, Heo Seon-bin experiences a critical lesson.

Gyeo-ul receives a disturbing noise complaint about one of Ik-jun's patients. Seok-hyeong opens up to Song-hwa, who gives him a piece of advice.

From student to intern for Yun-bok and Hong-do, and resident to fellow for Gyeo-ul, every step forward comes with plenty of hiccups — and new learnings.

Ik-jun’s team deals with a patient’s anxious brother — and his overbearing attitude. Chu Min-ha leaves a bad impression on a visitor in the cafeteria.

Jeong Rosa fears the worst when her memory continues to decline. Song-hwa grapples with the unforeseen diagnosis of a loved one.

A hospital ping pong tournament brings out each department's competitive streak. Ik-sun and Jun-wan make plans to meet for a proper chat.

The five friends leave for vacation together, but not all of them make it to the destination. Jae-hak and his wife navigate one surprise after another.

One of the hospital's doctors is rushed into the emergency room. A patient with an unanticipated condition poses a challenge for Song-hwa and her team.

A series of tough choices and sudden crises keeps life at the hospital as busy as ever. Through it all, the five friends continue to follow their hearts.