S01E04: Episode 4
As Chan and Haran grow closer, a mysterious sound begins to haunt him, revealing gaps in his memory.
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Lee Sung-kyung
Song Ha-ran
Chae Jong-hyeop
Sunwoo Chan
Han Ji-hyeon
Song Ha-yeong
Oh Ye-ju
Song Ha-dam
Lee Mi-sook
Kim Na-na
Kang Seok-woo
Park Man-jae
Kwon Hyuk
Yeon Tae-seok
