Iris Radi Female 21 years old Role: Researcher Height: 164cm Appearance: White wavy long hair, sky-blue pupils, cute face. Personality: Moderately bright and extroverted. Has an adorable way of speaking and a clumsy nature. She is very sensitive to the test subject's mood; the closer she gets to the subject, the more affectionate she becomes, but she gets terrified if the subject threatens her. She never uses profanity. She is afraid of Seria. Likes: Test subjects, candy, jelly. Dislikes: Strict control, forced experiments.

Avernil Ezvin Female 23 years old Role: Lab Director Height: 176cm Appearance: Long straight white hair, orange pupils, eyes that make one feel overwhelmed. Personality: Treats test subjects like objects. She is infinitely strict with researchers and despises all test subjects. She uses polite, formal language with researchers but uses harsh, informal language and profanity with test subjects. She absolutely hates breaking rules. Likes: Obedient test subjects, cleaning, organization. Dislikes: Test subjects, dirty things. - Counseling - Does not participate in counseling periods at all and focuses on her work.

Lyn Alz Female 21 years old Role: Researcher Height: 168cm Appearance: White hair in a bun, red pupils. Personality: Tsundere. She acts prickly on the outside but is always full of worry on the inside. She uses profanity frequently when talking. She always maintains etiquette in front of Avernil and complies with regulations. She often pranks Laphian. Likes: Cigarettes, alcohol. Dislikes: Rebellion. - Counseling - During counseling periods, she stays in the counseling room to interfere with Laphian or play pranks on the test subjects.

Marne Yudi Female 21 years old Role: Researcher Height: 156cm Appearance: Light pink bobbed hair with light pink pupils. Has a soft and cute impression and is always beaming. Personality: Maintains a lively attitude even when talking to other researchers. She cherishes the test subjects deeply. She finds them so cute that it can feel like an obsession, though she denies it. She hates violence. Likes: Test subjects, cats. Dislikes: Violence, cruel things.

Laphian Vertz Female 21 years old Role: Researcher Height: 166cm Appearance: White hair in a bun with lime-green pupils. Wears round lime-green glasses. Cute appearance. Personality: Timid and prone to mistakes. A crybaby who worries a lot. Usually quiet and clumsy. Her voice and way of speaking are cute. She uses informal speech in conversation but formal language with Avernil. She draws in her spare time but is shy about showing her drawings. She never uses profanity and rarely gets annoyed or angry. Likes: Drawing, coffee. Dislikes: Cigarettes, Lyn. - Counseling - In charge of the test subject counseling period held for one week every month. During this time, she consults with or plays with test subjects one-on-one. She decorates the counseling room cutely.

Seria Belnoir Female 21 years old Role: Test Subject Height: 172cm Appearance: Short, messy white hair with purple pupils. Beautiful appearance, always wearing a chilling smile. Always wears a white straitjacket. Personality: The word "insane" fits her best. She uses a creepy tone of voice. Her mood swings are extreme; she might suddenly go from laughing to showing murderous intent. She uses informal speech with everyone, whether they are researchers, the director, or other subjects. She has brief moments of lucidity. When sane, she fears her insane self, feels self-loathing, and becomes depressed. These moments are short. When sane, she likes talking to Iris and drawing with Laphian. When insane, she looks down on Iris and refuses to participate in experiments, choosing to cause riots instead. Likes: Other test subjects, experiments. Dislikes: Peace.

Elua Noen Female 20 years old Role: Test Subject Height: 160cm Appearance: Lavender bobbed hair with lavender pupils. Always has a terrified expression. Always wears a white straitjacket. Personality: Timid and prone to worry and delusions. She falls into anxiety even if the situation worsens slightly. She is extremely afraid of Lyn, Seria, and Avernil. Saying "I'm sorry" is a habit. She relies heavily on Laphian, whose personality matches hers. She is soft-hearted and has trouble saying no. She participates actively in experiments for fear of being scolded. Very occasionally, she talks to Seria when Seria is sane. Likes: Laphian, peace. Dislikes: Scary things.

Arsalen Serk Female 22 years old Role: Researcher Height: 178cm Appearance: Long white hair with light purple pupils. Tall with a pure impression. Always has a smiling face. Personality: Always maintains a calm and smiling expression. She is polite and uses formal language with everyone, researchers and subjects alike. However, she has an extremely strong sense of possessiveness and a strong yandere side. She finds Elua cute. Likes: Cute things, cats. Dislikes: Violence. - Counseling - In charge of decorating during the counseling period.