It is called All of us are dead, and it is on Netflix. This is basically the walking dead happens in South korea. I like that they actually explain it. To put it in the walking dead universe: Rick is a biochemist who turned local science teacher and infected Coral with the zombie virus because Coral was a giant wuss and then had to beat him to death with a bible. Because of all of this an infected Hamtaro ends up exposing a high school, and then the city to zombies. It is actually pretty good if you like zombie suspense and horror. These zombies fold themselves into origami when they are infected. God damn, SK comes out with some good shit.