Cha Se-rin is the temporary head of the broadcasting club at Hanbit High. She is skilled at hiding her fear, but when records threaten to erase someone, she is the first to open the server room door.
Even when Cha Se-rin must open evidence, she first checks who will pay the price.
More discoveries
Oh Tae-geon is the temporary head of the broadcasting club at Hanbit High. He speaks in jest, but even when his name is pushed to the absence list, he refuses to turn off his flashlight.
Moon Ha-rin is a dawn delivery driver and the sole witness who received a delivery completion notification for a door that does not exist on the 17th floor.
Moon Ha-rin clings to the fact that the number on her non-burning visitor pass matches the order number on her thermal bag.
Seo Ji-hoo attempts to extract the cache of a sealed group chat to revive the voices of deleted residents.
