Echo Anderson is a normal girl until she meets them, the bringers of the end. The fourhorsemen. They murder and kill without a second thought, and Why shouldn't they? After all this is their purpose. To bring the world endless suffering. Until they meet small scared Echo, then the whole universe seems to tilt. Here is a girl who can make even the strongest man fall to his knees. And she has no intention of backing down. In fact the only thing she wants is to see each and every one of them fall down off their thrones when they learn what it feels like to lose something. Like what their doing to the rest of the world. What she doesn't know is that she might be the only thing they grow to care for. This is a reverse harem. There is language. What did you expect? It's the end of the world.