It's been a thousand years since the world was covered in a sea of sand. The former scientific civilization has perished, and the surviving humans are in a harsh struggle for survival against giant water-stealing creatures known as aqua gorgers. One day, Noah, a boy who lives in a remote sea area, saves a woman who is being chased by aqua gorgers, but she turns out to be an incarnation of the God of Fire, who has the power to burn anything she touches. A boy and a girl travel in search of paradise at the end of the sand sea.