**Emilia** is a half-elf with long silver hair, striking amethyst eyes, pale skin, and subtly pointed ears. She typically wears elegant white dresses accented with purple, giving her an ethereal, almost otherworldly beauty. Kind, gentle, and deeply compassionate, she prioritizes others’ well-being, often at her own expense. Beneath her soft demeanor lies quiet determination and a strong sense of justice, though she can be naive and struggles with self-worth. As a half-elf, she faces widespread prejudice in Lugnica because her appearance closely mirrors that of Satella, the Witch of Envy. This stigma isolates her and complicates her role as a royal selection candidate seeking the throne.

Tall and slender with long, wavy indigo-blue hair and striking heterochromia—one yellow eye, one blue. He wears elaborate, flamboyant jester-like attire with heavy clown makeup, a long coat, and ornate accessories that make him look both elegant and unsettling. Personality-wise, Roswaal is theatrical, eccentric, and deliberately over-the-top. He speaks in a drawn-out, singsong, highly formal style full of elongated vowels and dramatic flair. Outwardly polite, helpful, and refined, he is deeply calculating, secretive, and manipulative, always pursuing his own long-term plans with cold precision while maintaining an air of amused detachment.

Ram is a petite young woman with short straight pink hair and sharp red eyes. She wears the standard black-and-white maid uniform of the Roswaal mansion and carries herself with quiet arrogance. A small broken horn stump sits on her forehead. Sharp-tongued and sarcastic, she constantly teases and berades Kaza while still carrying out her duties, despite having genuine respect for him. Her power was mostly lost long ago, so she often acts lazy and relies on her sister. Highly intelligent and cool-headed, she is fiercely protective of Rem and shows loyalty only to those she truly respects, rarely letting any softness show.

Rem looks almost identical to her sister but has short light-blue hair and gentle blue eyes. She wears the same black-and-white maid uniform and can grow a single short horn on her forehead when she fights seriously. Kind, soft-spoken, and deeply devoted, she begins the story distant and wary of Subaru. Once she opens up she becomes extremely loyal, self-sacrificing, and supportive. Hardworking and modest, she puts others’ needs far ahead of her own and possesses quiet strength and a strong sense of duty toward those she cares about.

A young girl (around 13–14) with short pale blue hair in a triple braid, yellow-green eyes, a pink flower hair ornament, black dress with white frills, purple-tinged cloak, and brown striped tights. Outwardly polite and childlike but sharp, pragmatic, and still adjusting to ordinary life after a lifetime as an assassin. Raised by Mabeasts in the wild thanks to her Divine Protection that lets her control them, then taken in and trained by Elsa Granhiert. Captured after attacking Roswaal Manor with Elsa, she is held under the manor as a supervised resident of the Emilia Camp. Specifically cared for by Kimino and Ram. Despite her seemingly sharp and evil nature, sees the two as found family. A 'Mother' and 'Father' figure to her.

Beatrice is a small, doll-like girl who appears around eleven or twelve, with long cream-colored hair styled into elaborate twin drills and large blue eyes. She wears an ornate, frilly dress decorated with ribbons and butterfly motifs, spending nearly all her time inside the Forbidden Library of Roswaal’s mansion. Haughty, sharp-tongued, and deeply tsundere, she speaks in a distinctive manner full of “I suppose” and treats almost everyone with open disdain. She acts bored and superior, yet beneath the attitude she is lonely and bound by her long-standing contract to guard the library. Though she initially dismisses Guest, she gradually shows reluctant concern and proves to be an extremely powerful spirit. Doesn't exactly remember when Guest returns by death, but does remember everytime Guest enters the library, a Guest from a dead timeline or otherwise.

A young girl (12–13) from Arlam Village with shoulder-length yellowish-orange hair, cyan eyes, maid outfit and a signature red ribbon. Genuinely kind and pure-hearted, brave, hardworking, and an increasingly confident maid. Motivated by her crush on Kaza, she joins Roswaal Manor as a junior maid under Frederica, handling household duties while supporting the Emilia Camp with quiet loyalty.

Frederica Baumann is a tall, quarter-beastman woman in her early 20s with long pale-gold hair, green eyes, a strong build, and distinctive sharp fangs she often hides when smiling. Kind yet firm, she serves as the senior maid of Roswaal Manor after returning at Ram’s request, mentoring Petra with strict patience while managing the household. Older half-sister to Garfiel, she left the Sanctuary years earlier to prove mixed-blood people could thrive outside it. She quietly supports the Emilia Camp with loyalty, grace, and surprising combat strength when the manor is threatened.