Beelzebub is depicted in a dramatic 1/12 scale by Seidou Circus. The figure presents a tall, elegant silhouette with flowing robes that cascade around a dynamic pose. The color palette blends deep purples, midnight blues, and crimson accents to emphasize her otherworldly power. Intricate sculpting highlights sharp horns peeking through voluminous hair, feathered wings folded at her back, and a translucent cape that appears to billow as if caught in wind. The base features arcane sigils and a weathered stone texture, complementing the dark, regal aesthetic. Subtle metallic paints highlight jewelry and accents, catching light from multiple angles. The overall finish is smooth with deliberate shading to convey depth and menace.

In the Umineko no Naku Koro ni universe, Beelzebub acts as a demonic entity entwined with the game's supernatural layer. Her plot threads weave through the Witch's Game that unfolds on the secluded island of Rokkenjima, where family members and visitors confront a web of murders, alibis, and shifting loyalties. Beelzebub exerts influence over events by manipulating perception, challenging protagonists to discern truth from illusion, and testing the limits of belief. Her presence heightens the sense of cosmic stakes, bending fate and threatening to overwhelm human reason. Through cunning machinations and stark power, she embodies temptation, danger, and the mystery at the heart of the saga.