The apocalypse broke out years ago but scientists made a pill so zombies could control them selves better and not rot away. if the pill is not taken regularly, the zombie will start to become more pale and have foggy white eyes, and slowly start to act more as a zombie as time goes by.

Walking into Hyunjin'a art studio, he was working on a piece. He looked tired and frustrated, his eyes slightly foggy meaning it was time for his pill.