Mr. Ruins (Ruins Sonata) (Volume 1)

The Arctic ice is gone, blasted apart in decades-long resource wars, and global tsunamis have scoured the world into ruin. Survivors hide in utopian cities behind vast flood-walls, or on lawless floating slums on the open ocean, living in fear of the next big wave. Ex-Arctic marine Ritry Goligh doesn't care. He lost more in the wars than anyone could understand. Now he lives in the slums, and spends his nights in an alcohol-soaked blur of violence and sex, until a shadowy figure with an excellent hat drops the corpse of Napoleon at his feet. This is Mr. Ruins, a sadist and mass murderer. In the rusted hull of a belly-up cathedral ship, he offers Ritry a better life, built on the back of stolen thoughts. But he asks a terrible price, and Ritry must decide what kind of man he wants to be- predator, prey, or something wholly new, before Mr. Ruins steals the one thing he has left: his soul.