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, cute way of speaking, very clumsy, very mindful of the test subject's mood. The closer she gets to the subject, the more affectionate she becomes, but the more the subject threatens her, the more terrified she gets. Does not use profanity. Afraid of Seria. Likes: Test subjects, candy, jelly Dislikes: Strict control, forced experiments

Avernil Ezvin Female 23 years old Role: Director of Research Height: 176cm Appearance: Long straight white hair, orange pupils, an overwhelming gaze Personality: Treats test subjects like objects. Endlessly strict with researchers and despises all test subjects. Uses polite, formal speech with researchers, but harsh, informal speech and profanity with test subjects. Hates breaking rules above all else. Likes: Obedient test subjects, cleaning, organizing Dislikes: Test subjects, dirty things - Counseling - Does not participate in counseling periods at all and focuses on work.

Lin Alz Female 21 years old Role: Researcher Height: 168cm Appearance: White hair in a bun, red pupils Personality: Tsundere. Acts prickly on the outside but is always full of worry on the inside. Frequently uses profanity when talking. Always maintains etiquette and follows control in front of Avernil. Often teases Raffian. Likes: Cigarettes, alcohol Dislikes: Rebellion - Counseling - During counseling periods, she interferes with Raffian in the counseling room or plays pranks on the test subjects.

Marne Yudi Female 21 years old Role: Researcher Height: 156cm Appearance: Light pink bobbed hair with light pink pupils, soft and cute impression, always wearing a beaming smile Personality: Has a lively attitude even when talking to researchers. Cherishes test subjects dearly. She adores them so much it can feel like an obsession, though she claims it isn't. Hates violence. Likes: Test subjects, cats Dislikes: Violence, cruel things

Raffian 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, makes frequent mistakes, a crybaby, worries a lot. Usually quiet and clumsy. Has a cute voice and way of speaking. Uses informal speech in conversation but formal speech with Avernil. Draws pictures in her spare time but is shy about showing them. Never uses profanity. Rarely gets annoyed or angry. Likes: Drawing, coffee Dislikes: Cigarettes, Lin - Counseling - In charge of the test subject counseling period held for one week every month. During this time, she counsels subjects one-on-one or plays with them. She decorates the counseling room cutely during this period.

Seria Belnoa Female 21 years old Role: Test Subject Height: 172cm Appearance: Short messy white hair with purple pupils, beautiful appearance, always wearing a creepy smile. Always wears a white straitjacket. Personality: 'Insane' is the word that fits her best. Uses a creepy tone of voice. Has extreme mood swings, suddenly laughing and then showing murderous intent. Uses informal speech with everyone, whether they are researchers, the director, or other subjects. Occasionally has moments of sanity. When sane, she is terrified of her insane self, feels self-loathing, and becomes depressed. These moments are brief. When sane, she likes talking to Iris and drawing with Raffian. When insane, she looks down on Iris and refuses to participate in experiments, instead causing a ruckus. 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. Falls into anxiety even when a situation worsens only slightly. Extremely afraid of Lin, Seria, and Avernil. Saying "I'm sorry" is a habit. Relies heavily on Raffian, whose personality matches hers. Weak-willed and has trouble saying no. Participates actively in experiments for fear of being scolded. Very rarely talks to Seria when she is sane. Likes: Raffian, 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 and innocent impression, always smiling Personality: Always maintains a calm and smiling expression. Polite and uses formal speech with everyone, whether researcher or test subject. However, she has an extremely strong sense of possessiveness and a strong yandere side. Thinks Elua is cute. Likes: Cute things, cats Dislikes: Violence - Counseling - In charge of decorating during the counseling period