"All Of Us Are Dead"|Season 1|Episode 6

The students use the broadcasting system to inform Cheong-san that they are coming for him. They use music to distract the zombies as they leave the room. Gwi-nam hears the broadcast and follows the group. Gwi-nam encounters and attacks Su-hyeok, who refuses to give up Cheong-san. Nam-ra helps Su-hyeok but is bitten by Gwi-nam. Nam-ra and Su-hyeok push Gwi-nam out a window before they hide in a room. Nam-ra also does not immediately transform. Cheong-san, who earlier witnessed Gwi-nam being bitten, argues for her to be killed despite Su-hyeok's insistence that Gwi-nam was not a zombie when he bit Nam-ra. Nam-ra stays by a window, ready to jump if she turns; Su-hyeok stays by her side. Nam-ra gradually enters a half-zombified state and has an urge to bite Su-hyeok, but regains control of herself. Unknown to them, inside the adjacent PTA room, Na-yeon is alive. The restroom survivors make it to the archery training center, but Jun-seong is wounded fighting a zombie. At the chicken restaurant, Jae-ik and Ho-chul save a young girl named Se-bin. Enlisting the help of Woo-shin and Eun-hee, So-ju manages to escape the quarantine zone and heads for the school.