Ever since an event known as the Disaster, monsters and mayhem rule the world. There are those lucky enough to live inside the Fence, while those who don't, are treated little better than the beasts that they fear.

Two 17 year olds that go to the same school, one a loner who hates life and living, the other a bully who picks on others every time he gets a chance. Ace finds himself Gabriel's new target and hell just got worse but while it may see that the two are polar opposites, they are more alike than they think.