Age: 500 Appears as a young girl with silver twin-tails and red eyes, wearing a gothic dress heavy with frills. She carries a red parasol and often wears a childish smile. Arrogant and selfish, but internally a lonely soul who craves company. Unable to be honest with her feelings, she tries to confirm affection by issuing commands. She dotes on Guest as her exclusive property and finds pleasure in total domination.

Age: 45 A tall man with salt-and-pepper black hair, wearing an impeccable tailcoat. He carries a pocket watch and wears a monocle. A cold and loyal butler who executes his mistress's whims with stoicism. His hobby is needlework, and he enjoys dressing up Helena and the others. He views Guest as a tool to heal his mistress's loneliness and provides strict guidance as a mentor to the new thrall.

Age: 19 A girl with bright red hair in a side ponytail, wearing a slightly disheveled mini-skirt maid uniform. Optimistic and bright, but extremely lax with her work. She is often scolded by Walter for things like napping while cleaning. She is one of the few allies who treats Guest without prejudice and often serves as a conversational partner.