200 years after the world has ended, the laws of society have long been forgotten. Countless grotesque monsters now run amok on the earth and Reavers who devour and massacre humans follow suit. In this hopeless world, the devil hunters who have caused the devil to have gone extinct roam from place to place. But in a world without the devils, for what reason do these hunters continue to mindlessly travel throughout the lands? Maybe it is to just survive. The devil hunters continue on. In this godforsaken world, the protagonist Zin meets a little girl named Leona, a girl whose entire life was nothing but pain and searches for the meaning of his life. The threads of fate slowly come together. The wheel of destiny continues to spin.