Legend has it that a war involving the "Kagijin," beings of terrifying power, devastated the world and buried it in sand. Time passed... and now, Chiruda Portman, a female soldier of the Gabbia Empire, has been ordered to exterminate a certain man. The boy's name is "Tsubame"! The two meet by chance, but Chiruda senses something strange about Tsubame, who loves freedom and reading books... what is the big secret he holds!? A new-age fantasy of their adventures set in a breathtaking world!! "