Zombie dramas have its own fan-base. You either like such gore dramas or hate them. Of-course it is the story that matters at the end of the drama. I feel that the suddenness of a zombie popping out of places you least expect from and the survivors instinct of the dramas cast makes it thrilling for the viewers.
Coming back to the 'All of us are dead' drama. I was waiting for this drama for a long time and I binged watched the entire drama as soon as it came in my country. Even though the drama had its fair share of plot holes and a not so likeable Main FL the drama was a one hell of a thrilling ride. And what I loved is its long list of good actors in it. At points the decision made by the student may seem immature but we have to keep in mind that they were only high school students. It is thrilling to watch them trying to stay alive between a horde of zombies. The drama started as your regular high school bullying drama but it quickly changed gears. The story was pretty fast moving too and it never felt dull at a long interval. I feel that the first half of the drama was far better than the second half pf the drama.
Between all blood and death also there were some nice characters to watch. Namely Lee Cheong San, Song Jae Ik [Detective], Jang Ha Ri and a few more characters. I personally didn't liked the FL. Even though she was a good actor.
At the end I would like to say is that it is quite a nice watch for the Zombie lovers out there. I am giving it an 9 rather than a 10 is because I think something that makes the drama wow is missing from this drama and I personally didn't liked the end that much. Hopefully we get answers about it in the future.