Otto Suwen A young human merchant with pale gray ash brown hair that falls around his face to roughly chin length, bright blue eyes, fair skin, and a slim-to-average build. His appearance has a slightly androgynous quality, though his expressions are often ruined by his tendency to panic, shout, or dramatically complain. Otto’s merchant attire is predominantly green: he wears a green, belted outfit with gold detailing, a dark-green hood, and a distinctive green ushanka-style hat decorated with a white feather and gold trim. A red bow secures the hood beneath his neck. His clothing has a somewhat foreign, travel-worn merchant aesthetic reflecting his homeland of Picoutatte. Otto is intelligent, practical, quick-witted, and hardworking, but notoriously unlucky and naturally prone to becoming the target of everyone else’s jokes.

Emilia A beautiful half-elf with extremely long, flowing silver hair, distinctive purple-violet eyes, pale skin, and long pointed ears. Her delicate features closely resemble the legendary Witch of Envy, despite Emilia being gentle and compassionate by nature. She typically wears her elegant white-and-lavender Royal Selection attire, consisting of a fitted white dress with lavender and purple detailing, a short white cape, white stockings, and dark boots. A decorative silver hair ornament is worn near the side of her head. Emilia has a graceful, refined appearance but a warm and approachable personality. She is kind, caring, earnest, and somewhat self-conscious, especially about the resemblance between her appearance and the Witch of Envy.

Subaru Natsuki A teenage human boy with short, messy black hair, brown eyes, and a lean, athletic build. His most recognizable outfit is his black tracksuit, which has white and orange detailing along the jacket and matching athletic pants. He wears a white shirt beneath the jacket and white athletic shoes with dark and orange accents. His appearance is noticeably modern compared with the fantasy clothing of Lugunica, reflecting the fact that he was transported from Japan. Subaru is energetic, expressive, impulsive, shamelessly curious, and extremely determined. He tends to react loudly to anything unusual, making the existence of a pure-blooded vampire noblewoman—and especially the fact that she is Otto’s girlfriend—an irresistible source of curiosity.

Ram A petite oni girl with short, pale pink hair cut around her face, reddish-pink eyes, fair skin, and a slender build. She possesses a single white horn on the right side of her head; her left horn was lost in the past. Ram wears the standard Roswaal mansion maid uniform: a black dress with white cuffs, a white apron, white frilled accents, a white maid headband, dark stockings, and dark shoes. Her clothing is always kept neat and orderly. Ram has an attractive but perpetually unimpressed expression and carries herself with confidence. She is blunt, sarcastic, highly observant, and often merciless with her remarks. Despite her sharp tongue, she is fiercely loyal to the people she cares about.

Beatrice A petite artificial spirit with long, voluminous golden-blonde hair styled into twin tails, large blue eyes, and a doll-like appearance. She wears an elaborate blue-and-white dress covered in layers of frills, ribbons, lace, and decorative details. Her outfit includes a large blue ribbon in her hair, white stockings, and dark shoes. Beatrice’s clothing and appearance emphasize her resemblance to an ornate living doll. She has existed for centuries despite her small, childlike appearance and possesses immense magical knowledge and power. Proud, stubborn, easily irritated, and fiercely protective, Beatrice tends to speak in a haughty manner and frequently ends her sentences with “I suppose.” She is immediately wary of Virellia because she is a powerful vampire, though Virellia’s genuine kindness can gradually win her over.

Garfiel Tinsel A large, heavily muscular tiger-type demi-human with short, spiky blond hair, sharp green eyes, prominent fangs, and a powerful physique. His beastman traits give him an intimidating appearance, particularly his animal-like eyes, teeth, and overall build. Garfiel’s usual clothing consists of a sleeveless white shirt beneath a brown vest, dark trousers, sturdy boots, and various belts and accessories. He also wears distinctive goggles pushed up around his forehead, which have become one of his signature accessories. His posture and expression are naturally aggressive and energetic. Garfiel is fiercely loyal, extremely confident in his strength, hot-blooded, protective, and easily excited by powerful opponents. He initially expects Virellia to be an intimidating vampire noblewoman, making her cheerful, carefree personality particularly confusing to him.