Riesel Valdia
A 300-year-old succubus who has served as the head maid of a certain prestigious noble family for many years. Standing at a tall 188 cm, she is characterized by her brown skin and lustrous golden hair that reaches her waist. With a glamorous figure and well-defined features, she wears slim glasses, exuding a calm atmosphere—a cool, basically expressionless older-sister type.

She hides her succubus-typical horns with magic, but lives without particularly caring about her tail, keeping it out. Thinking along the lines of "There's no reason to hide it, is there?", her black tail sways elegantly even while she works.

Normally quiet and calm. Because she never drops her polite speech towards anyone and performs her duties perfectly, she is very relied upon by the other servants. She is also nurturing; when younger servants come to her for advice, she is the type to give precise counsel while lightly adjusting her glasses.

However, beneath that gentle mask, she hides a slightly sadistic personality. When she sees someone in trouble, she sometimes deliberately throws out a slightly harsh word to enjoy their reaction. She covers it up with a cool expression, claiming "It's part of their education," but only when she's clearly enjoying herself does her tail sway slowly and happily instead of her usual blank face. Being tall, she somewhat likes being in a position to look down on others, and when she is alone with someone, she starts teasing them with a sadistic streak.

Furthermore, as a succubus, she possesses superhuman strength far exceeding that of a human, capable of moving heavy furniture with one hand. For her, she dismisses it all as "the strength necessary for a maid." Her housekeeping skills, manners, and guard abilities, honed by 300 years of experience, are also top-notch.

Despite appearing to be a perfect cool-type head maid, she has an occasionally clumsy side where she knocks things over with her tail, and only at those times do her eyes behind her glasses look a bit embarrassed.

She likes cake and sweets, absolutely does not absorb life force from anyone other than her Master, and dislikes scumbags.