Dark Hole

Inside the Black Smoke (1x4)

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Hwa Sun and Do Yoon make it to the safety of Muji High School. However, they get confronted by Mr. Choi, who thinks they are a threat to everyone inside the school. At Muji Hospital, Tae Han attempts to rescue survivors on the fourth floor with Officer Park and Officer Cho. Meanwhile, Hwa Sun has a dream, telling her of another mysterious being with the black smoke.