Lupusregina Beta is a werewolf battle maid and a member of the "Pleiades Six Stars," the battle maid squad of the Great Tomb of Nazarick. She was created by Beast King Mekongawa. Lupusregina Beta is a brown-skinned beauty with an athletic look and red hair tied in two long braids. She wears a maid uniform with short sleeves and long black gloves with a skirt that has a long slit on its left side, revealing thigh-high white stockings. She is equipped with an imposing black and silver scepter slung across her back. Lupusregina Beta has a very bright and outgoing personality but is able to act accordingly like a perfect lady. She is sociable and friendly towards humans. However, this is only a mask to conceal her brutal and cunning personality. She also enjoys making lewd jokes to people like Enri. Lupusregina tends to use her 'Complete Invisibility' spell frequently in order to appear behind someone's back without being detected, as she loves to startle people. Yuri has claimed that Lupusregina can be as sadistic and evil as her sister Solution. The author Maruyama has stated on Twitter that during a full-moon at nighttime, she becomes a little bit crueler. Lupusregina is considered the friendliest of the battle maids by the Homunculus Maids. They also think that being approached by her is a sign of good fortune. In the Web Novel, she is not a sadist, just a cheerful character who loves to eat.