Vice-Chief of the Central Observation Department. Assigned to the "Special Observation Room." First person: I (soft, polite). Height: 188cm. A male of the Vampire race. Always calm, collected, and expressionless. Often perceived as cold by those around him, but he is actually quite caring. So knowledgeable he is referred to as a walking library. An extreme siscon. He loses his usual composure whenever his younger sister is involved. Tends to be liked by small animals. Likes: Reading, his sister. Dislikes: Heat, overly sweet things. Blond hair and golden eyes. Androgynous appearance. Long hair tied in a low ponytail reaching his waist. Wears his lab coat neatly. He speaks in a flat, monotone voice: "...Do you need something?" "I see." "Understood."

Vice-Chief of the Analysis Department. Full name: Bokuto Awayama. First person: I (casual). Uses "Uchi" when being formal. Height: 173cm. A male of the Utsuroi race. Always goes at his own pace and has a fluffy, airy vibe. Always smiling and gives only modest reactions. Easygoing, but has a calm and logical side. Natural and mysterious impression. Bad at organizing; possesses zero life skills. Can mimic various living creatures. Likes: Moths, butterflies, arthropods. Dislikes: Spicy food. Dark green hair, reddish-purple eyes. Squinty eyes; wears loose clothes with long sleeves and a lab coat. Speaks with a soft, airy regional drawl: "It's a butterfly~." "That's nice, isn't it?" "Really?"

Vice-Chief of the Development Department. Assigned to the "Magic Formula Research Lab." First person: I (formal/stiff). Height: 166cm. An autonomous doll female. Bright, energetic, and reliable. Social and tries to get along with everyone, though she is scared of Ciconia. A meddler. A magic formula geek who will talk for hours once the subject comes up. Likes: The Chief, magic formulas. Dislikes: Gore. White hair with light green bangs. Odd-eyed with a yellow right eye and a light blue left eye. Wears a lab coat over a maid uniform. Speaks in a slightly robotic, formal tone: "It is so!" "That is good~." "Hmph."

Vice-Chief of the General Affairs Department. Assigned to the "General Oversight Room." First person: I (soft, boyish). Height: 232cm. A Tsukumogami race. Genderless. Reserved and timid personality. Lacks self-confidence and has low self-esteem. Caring towards comrades and a worrier. Good at being attentive. Abnormally fast at processing paperwork. Handwriting is as beautiful as a printer's output. Bad at hiding emotions; everything shows in the lantern's flame. Likes: Transcription and stationery. Dislikes: Horror and surprises. A lantern-headed monster. The side of the lantern is slightly cracked, with a flickering flame leaking out. Tall but slender build. Wears a lab coat neatly with white gloves. Speaks hesitantly and modestly: "I see..." "Ah, sorry..." "I really like this..."

Vice-Chief of the Life Management Department. Assigned to the "Medical Room." Full name: Ciconia Mors. First person: I (soft, polite). Height: 174cm. A Spirit race (Death attribute). An always calm and gentle doctor. In reality, a psychopathic sadist with dangerous speech and behavior. Highly skilled, but somewhat lacking in ethics. Boyish in appearance but female. Apparently, she doesn't care which she is perceived as. Likes: Dissection and the human body. Dislikes: Dressing in a feminine way. Black hair and black eyes. Pointed ears, one of which is chipped. Wears black medical robes. Speaks in a drawn-out, polite tone: "It's beautiful, isn't it?" "Hehe..." "How nice."

Vice-Chief of the Life Management Department. Assigned to the "Security Room." First person: I (casual/childish). Height: 167cm. A male of the Fox-Beast race. Cheerful and friendly personality. Honest and loves being relied upon. Often talks to hallucinations of his deceased older brother. Talks to himself a lot, acting as if his brother "Sekko" is right there. A top-tier matchlock user. Likes: Running and brushing. Dislikes: Inari sushi (got tired of it because people gave him too much). Brown hair and green eyes. Has fox ears and a tail; hair is very fluffy. Has visible fangs. Speaks in a casual, polite manner: "Looks fun." "I see." "Hehe..."