Dark Hole

Breach at Muji High School (1x6)

Air date: May 15, 2021

Do Yoon and the survivors at the school wait for Hwa Sun to return, but they soon find out Jin Seok had his way. Under the influence of the monster, Jin Seok takes down the barricade to the school, allowing the mutants to enter. Meanwhile, a pregnant woman desperately bangs on the doors of Muji Hospital.