cast
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Jung Jae-young
Han Jung-seok
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Han Ji-min
Yoo So-jung
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Kim Ji-young
Psychiatrist
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Cha Ye-ryun
Lee Ji-won
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Choi Won-young
Kang Byung-soo
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Hwang Byeong-gug
Japanese researcher (uncredited)
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Seong Byeong-suk
Mi-young
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Ha Jae-sook
Lethargy woman
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Park Gil-su
Section chief Nam (uncredited)
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Yoon Kyung-ho
Drunk (uncredited)
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Go Seo-hee
(uncredited)
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Kim Ji-hoon
Deong-chi