In a world where all natural forces - such as heat, light, and motion - are controlled by invisible winged creatures known as vox, mages have successfully conquered death, making all humans immortal. By chance, a journalist named Liiran discovers a winged woman sleeping in a glass coffin, buried in a long-abandoned facility in the desert. The woman, Mortis, is the vox of death. She escapes her prison, but with no memory of what she is, Mortis goes to the only person she remembers - Liiran. Declared a criminal merely by his knowledge of Mortis' existence, and nearly arrested for treason,...