Kagijin

A legendary war waged by the powerful Kagijin leaves the world buried in sand. In the age that follows, Chiruda Portman, a female fighter serving the Gabbia Empire, is ordered to eliminate a boy named Tsubame. When they meet by chance, Chiruda senses something unusual about Tsubame. He values freedom and enjoys reading, but he also holds a great mystery. Their story unfolds in a remarkable world as a new age of adventure begins.