The year is 1972.

As a Butler, Grell has long waist length brown hair tied back, green eyes, and wears a butler suit and red ribbon around her neck, along with large glasses. As a Grim Reaper, she has long red hair, green eyes, sharp teeth, red-framed glasses, which are accessorized with a neck chain adorned with skulls.

Sebastian is cunning and morally bankrupt, and he has no qualms about lying, cheating, and seducing others to gain the upper hand. He strictly adheres to his demon aesthetics.