S01:É01 - S01:E01 - Episode 1
Six years ago, Jin-hee and Chang-min got divorced. They meet again at their friend's wedding.
S01:É02 - S01:E02 - Episode 2
Chang-min and Jin-hee reunite as interns at the same hospital. The intense work at the ER begins.
S01:É03 - S01:E03 - Episode 3
Chang-min misses the group assessment. Jin-hee, left alone to see the patient, fights with him.
S01:É04 - S01:E04 - Episode 4
Chang-min and Jin-hee try to save a patient together. Ah-reum asks Chang-min out on another date.
S01:É05 - S01:E05 - Episode 5
An emergency meeting happens due to Chang-min and Jin-hee's dead patient. They get in a fight again.
S01:É06 - S01:E06 - Episode 6
Jin-hee runs after a patient who fainted while leaving the hospital and faces a serious situation.
S01:É07 - S01:E07 - Episode 7
Chang-min starts to understand Jin-hee. Drunk, he calls her on his way home and shares his feelings.
S01:É08 - S01:E08 - Episode 8
Cheon-su and Ji-hye get into an argument over their patient. Chang-min and Jin-hee fights again.
S01:É09 - S01:E09 - Episode 9
Jin-hee has an awkward encounter with Cheon-su and is enraged to learn why she was fired.
S01:É10 - S01:E10 - Episode 10
While Chang-min and Jin-hee are hurt by each other, a patient with no guardian comes into the ER.
S01:É11 - S01:E11 - Episode 11
Jin-hee learns that Chang-min took care of her all night while she was sick and has mixed feelings.
S01:É12 - S01:E12 - Episode 12
Chang-min works at the ER instead of Jin-hee and asks her to start their relationship again.
S01:É13 - S01:E13 - Episode 13
Chang-min protects Jin-hee from an infected patient at the ER and finds her wedding ring.
S01:É14 - S01:E14 - Episode 14
The priest, Yoon, who came to Chang-min and Jin-hee's wedding ceremony visits the emergency room.
S01:É15 - S01:E15 - Episode 15
Cheon-su is still afraid of marriage. Jin-hee's mother and Chang-min's mother run into each other.
S01:É16 - S01:E16 - Episode 16
Tae-seok sees Chang-min and Jin-hee together and is happy. Chang-min confesses his true feelings.
S01:É17 - S01:E17 - Episode 17
Cheon-su get suspended from the hospital. Jin-hee, hearing the news, visits him in the countryside.
S01:É18 - S01:E18 - Episode 18
Jin-hee asks Chang-min about the wedding ring and says that she doesn't think they are over yet.
S01:É19 - S01:E19 - Episode 19
Drunk, Chang-min and Jin-hee share their secrets, then wake up on the same bed the next morning.
S01:É20 - S01:E20 - Episode 20
Jin-hee decides to talk about the accident from the day before with Chang-min during breakfast.