Ura is a demon aligned with Beelzebub's satanist cult, dedicated to resurrecting Demon Lord Dante and overthrowing God. She originated from the fall of the ancient city of Sodom. Her distinctive demon form manifests as a harpy-like figure with grey skin and feathers, wild white hair featuring sideburns, pointy ears, yellow eyes marked by red circles beneath them, green lips, and a red ruff of feathers encircling her neck. When assuming a human guise, she appears as a woman in her late twenties with green hair and pointy ears, typically clad in the crimson robe common among cult members.

Her primary abilities encompass flight using her wings and the generation and projection of energy-based needle projectiles. She is also depicted as a skilled harpist, a talent showcased in the anime's seventh episode.

Ura operates within the cult hierarchy alongside fellow demons Beelzebub, Pico, Samael, Gusion, and Carne. A significant action involves her abduction of an unnamed foreign princess, intended as a replacement sacrificial offering after the cult's initial attempt to sacrifice Saori Utsugi failed due to Utsugi's connections to Ryo Utsugi and divine forces; this event fuels the cult's efforts to revive Dante.

Within the narrative, Ura stands as the sole female demon among the primary cult members. She receives greater characterization than other minor demons in the anime adaptation, consistent with the adaptation's expansion that reimagined several previously unnamed cultists from the original manga as distinct demons.