Pristella is minutes away from disaster, and Subaru is the only one who has any idea what's coming. Sirius, the Archibishop of Wrath, has an insidious power and is more than willing to use it to commit an act of terror in the name of love. To have any hope of saving the city's residents, Subaru will first need to figure out how to handle the shortest time limit Return by Death has ever given him. Will his powerful allies and newfound skills be enough to keep the Water Gate City safe from the catastrophe that's about to come knocking?