Umezz is one of the Master in horror manga, one of his masterpiece is in this 11 volume of comics. The story is about an elementary shool that trapped in the far future, where the world is already collapsed. The horror you'll get is not just something that lurking there in the shadow like strange creatures, but also your friend, junior, senior and teacher, they will become your enemy. To survive some people going nuts and killing each other while the other try to stay away from the problem and unite.
