Gunslinger Stratos: The Animation

In the 17th Far East Imperial City Management District, the citizens live in a society where they've traded some comforts for the promise of peace. However, the disease known as "Degradation" is spreading, causing people's bodies to disintegrate into sand. Tohru Kazasumi, a high school student, becomes entangled in a battle between his world and an alternate reality known as "Frontier S (Stratos).