The series revolves around the thoracic surgery department of a hospital.
as Park Tae-Soo
as Choi Seok-Han
as Yoon Soo-Yeon
as Yoon Hyun-Il
as Yoon Hyun-Mok
as An Ji-Na
as Kang Eun-Sook
as Moon Seung-Jae
as Koo Hee-Dong
as Nam Woo-Jin
as Lee Joong-Do
as Son Jae-Myung
as Hwang Jin-Chul
as Jung Ji Won
as Lee Sun-Yeong
as Lee Ye Rin
as Nurse
