In the kingdom of Amelia, Queen Amelia wields an absolute monopoly over magic and uses its supernatural power to fuel a relentless campaign of invasion against neighboring lands. The small, prosperous country of Campus Fellow, known for its farms and blacksmiths, now faces the flames of this war and imminent destruction. Desperate to save his nation, the lord Bud Grace decides on a treacherous course of action. He seeks to recruit a group of vicious witches known as the disasters of calamity, beings who have left behind horrifying tales across the continent. Among those brought into this perilous fold is a boy known as the Black Hound, raised from childhood as an assassin and trained in every manner of lethal technique, who now dedicates himself to the impossible task of protecting his lord and his homeland. As Campus Fellow rallies these dangerous allies, a rumor spreads that the Mirror Witch has been captured in the neighboring kingdom of Rêve after attempting to seize its throne through deception. Lord Bud Grace leads his retainers, including the Black Hound, to take custody of this powerful witch. The narrative unfolds as a dark fantasy epic, following the uneasy alliance between a desperate lord and the calamitous witches he commands, and the trained killer who serves as the hound at their side, all standing against the overwhelming magical might of the Amelia war machine. The story spans from the looming invasion of Campus Fellow to the political machinations surrounding the capture of the Mirror Witch, with the boy assassin caught at the center of this struggle between rival magical powers.