The bold exorcist Silvano × The curate (assistant priest) Theodoro with a hidden secret— An exhilarating end-of-century exorcism fantasy showcasing dynamic action! 200 years after the end of the Third World War, the world has fallen into ruin, teeming with all kinds of mutants. As the fierce battle between good and evil rages on, a rumor spreads of a saintess who will appear to save the world. In response, demons begin to possess humans to claim the saintess for themselves, throwing the world into chaos. Exorcists from the Astrian Cross Alliance are tasked with vanquishing demons and racing to find the saintess before the demons do. Silvano is an exorcist of exceptional skill but has a cold and unfeeling nature. He is reassigned to the D-Zone fortress, a place avoided by all priests, and there, he meets the curate Theodoro. Together, they begin to unravel the mysteries and challenges tied to the D-Zone fortress. Amid battles with demons, Theodoro's suspicious past gradually comes to light! Will they be able to find the saintess and save the world from destruction