Beth, a Beast of Gévaudan historically known for endangering humans, appears exclusively in "Dropkick on My Devil!" media. Mistaken for a stray dog, she was adopted by Yurine Hanazono. Despite her species' aggressive reputation, Beth shows no hostility towards Yurine and acts as a domesticated house pet. Her physical form resembles a small, brown, quadrupedal mammal featuring dark stripes and a distinctive mohawk along her back.

Her personality mirrors that of a typical trained dog, marked by loyalty to Yurine and occasional playful or flirtatious behavior directed at other female dogs. Beth coexists peacefully with Yurine, who provides her care. Her interactions with Jashin-chan are more volatile, often involving biting that results in Jashin-chan losing body parts, though Jashin-chan persistently attempts to bond with her. Beth forms a close companionship with Minos, notably acting as a shepherd dog for the minotaur during their time in Hokkaido. Additionally, the heavenly custodian Pino can understand Beth's vocalizations as human language.

A documented trait is her effect on vampires, who exhibit a natural fear of her presence. Beth maintains a largely passive role within the series' events. Her background lacks extensive elaboration, and no significant character development or narrative arcs specific to her occur across the anime, films, or other media. She functions primarily as a supporting element in the comedic ecosystem of Yurine's apartment and its supernatural residents.