What if a normal school day turned into a terrorist attack ? Eight problematic students were stuck in the detention room with a student councillor when the deadly shooting happened . They had to put aside all the hard feelings they had for each other and learn to work together to survive . #1 michaeng - 13 August 2024 #1 satzu - 4th September 2024 #1 dahmo - 12th September 2024 #3 Mina - 22 Nov 2024 #5 Chaeyoung - 22 Nov 2024 #1 Jihyo - 21 Dec 2024 Start : 20 June 2024 End : 18 September 2024