When the Seeker of Glory fully sacrifices their soul, completely falling into a pure demon, their hollow corpse will be blessed by the devil, twisted into an existence beyond worldly logic, known to Bologue and others as the Calamity of This World.
Each Original Sin has its own terrifying Calamity of This World, and each one possesses power that vaguely surpasses the Seeker of Glory. They are pure embodiments of evil and natural disasters, their power so horrifying that the appearance of any one of them is an apocalypse for humanity.
In the Raymond Gaudent incident, Bologue faced the gluttonous Calamity of This World: the Beast of the Herd.
Since the Fall of the Holy City, this terrifying monster has been suppressed by the Order Bureau. It's fair to say this massive, grotesque flesh is the true embodiment of the Extraordinary Disaster: Eternal Rotting Land, continuously transforming the surrounding inorganic matter into flesh and devouring it into its hungry maw.
