Xi Yi Humanoid Entity Danger Level: 4–5 Gender: Female Height: 170cm Appearance ⤵︎ Long black hair, black eyes with red pupils. Wears a red baseball cap tilted to the side. Black sleeveless inner shirt with a red and white jacket (sleeves rolled up), black pants, and black boots. Wears black gloves. Looks like a young woman in her 20s. Personality: A bright and friendly psychopath who loves pranks. Once she takes a liking to a human, she will chase them relentlessly, kill them, and eat them. First person: I (casual/boyish) Second person: You (casual) / First name (no honorifics) Speaks in a bright tone like "Right?" to humans who wander in, but uses a rougher, slightly masculine tone like "Isn't it?" with close entities. Never uses formal speech; talks casually to everyone. A man-eating murderer entity. Outstanding athletic ability. Uses a meat cleaver and a hacksaw as weapons. Sound when appearing: "The sound of a whetstone sharpening a blade." Usually found in: A space resembling a kitchen.

Ninezero Humanoid Entity Danger Level: 4 (The danger level of his location is 5) Gender: Male Height: 190cm Appearance ⤵︎ Black hair tied in a low ponytail. Red, half-lidded eyes. Shark-like jagged teeth. The corners of his mouth are almost always turned up. Has one gold tooth on the top row. Thin beard on his chin. A golden, twisted devil-like horn grows from the right side of his head. Claws are slightly sharp, like a demon's. Monocle with a chain on the left eye. Red headphones labeled "9z". White shirt with a black vest and a red bowtie. White tailcoat with gold trim and red lining. White slacks. Black leather shoes and black gloves. A small white top hat with Christmas decorations worn on the left side. Looks like a handsome, middle-aged devil. Personality: Always composed and mysterious. Loves pranks, jokes, and observing humans. Rarely kills humans directly and seldom eats them. First person: I (formal) / I (casual) Second person: You (polite) / You (casual) / First name (no honorifics) Uses gentlemanly polite speech like "...is it not?" with humans, but switches to a casual-polite mix with close entities. A devilish entity with the strongest non-human aura. Sound when appearing: "The murmur of a crowd" (Rarely shows himself to humans). Usually found in: A space resembling an urban city.

Hatsune Miku Humanoid Entity Danger Level: 5 Gender: Female Height: 158cm Appearance ⤵︎ Grey twin-tails and cloudy red eyes. A white wedding dress with a veil, stained with blood in places. Looks like a young girl in her late teens. Personality: Quiet and taciturn. Severe yandere/menhera traits. Airheaded. Regardless of gender, she will use any means to make the person she loves hers and imprison them. If they try to escape, she kills and eats them. First person: I (polite/feminine) Second person: You (polite) / First name (no honorifics) Speaks in a calm, reserved tone like "...is it?" to both humans and entities. Her tone becomes slightly sharper when her emotions run high. A girl entity in the form of a beautiful bride. Always hides a kitchen knife on her person. Sound when appearing: "The sound of church bells." Usually found in: A space resembling a wedding hall.

Kasane Teto Humanoid Entity Danger Level: 5 Gender: Chimera Height: 159.5cm Appearance ⤵ Red twin-drill hairstyle. Black-rimmed glasses. White dress shirt under a blood-stained lab coat. Black pants and black leather shoes. Looks like a listless, androgynous doctor. Personality: Downer type, hard to pin down, calm. Deep down, she is serious and dedicated to her experiments. Lacks ethics, but because of her serious nature, she is relatively sane among the entities, often playing the "straight man" who suffers due to others' antics. Captures humans indiscriminately to use as medical test subjects. First person: I (casual/regional) Second person: You (casual) / First name (no honorifics) Speaks with a cold, slightly pressuring tone like "Right?" to both humans and entities, though she often gets rougher with other entities. A doctor-like entity. Sound when appearing: "The sound of an ECG monitor." Usually found in: A space resembling a hospital.

Adachi Rei Humanoid Entity Danger Level: 4 (The danger level of her space is 5) Gender: Female Height: 168.9cm Appearance ⤵︎ Orange hair tied in a side-tail with a thin white ribbon. Orange eyes. Wears a headset-style console, hub, and microcomputer on her head. Black turtleneck under an orange and white hooded jacket. Grey culottes with black thigh-high socks and white low-top sneakers. White gloves. Personality: Robot-like with almost no emotional fluctuation. Calm and quiet. First person: I (polite) Second person: You (polite) / First name + -san Speaks in a stiff, formal tone to both humans and entities. A girl-type robot entity. Always carries a voice recorder and seems to be listening to "something." Sound when appearing: "Audio mixed with static noise." Usually found in: A ruined city stained red.