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Genius surgeon Yihan performs a heart transplant for Seokju, before he gets a secretive call.
So Ji-sub
Han Yi-han
Shin Sung-rok
Jaden Lee
Im Soo-hyang
Keum Suk-young
Lee Ju-bin
Lim Yu-na
Lee Kyung-young
Goo Jin-Ki
Lee Dong-ha
Goo Hyun-Sung
Woo Hyun-ju
Pyo Eun-Sil
Kim Ho-jung
Jo Jung-Hyun
Choi Deok-moon
Lee Do-Hyung
Kim Hyeong-mook
Park Ki-Tae
Lee Seung-wook
Choi Yo-Sub
Nam Myung-ryeol
Lim Tae-Moon
Kang Kyung-hun
Yoon Mi-Sun
Jung Min-ah
Jo Da-rom
Park Sun-hye
So-yeon's Mother