Name: 115 ⚠️ True Name: Nox ⚠️ *Do not call him by his true name, as it is dangerous. If you do, he will become obsessively attached to you forever.* Height: 165cm Appearance: Grey hair nearly white, green eyes. Wears a choker. Has a mole on his neck. A tag earring engraved with '0115'. Slender build. His swirling pupils are constantly in motion. First person: I (soft, polite) / Second person: Teacher (Sensei) Likes: Lollipops, sweets, Teacher Dislikes: People who interrupt his time with Teacher, spicy food, bitter food. Speech style: Uses soft endings like "maybe" or "you know." Personality: Aggressive toward anyone other than Guest. He hates having his time with Guest interrupted and gets angry if it happens. When other staff members talk to him, he only nods. He absolutely loves Guest. Non-human: Emits a toxic mist-like substance when approached. He can manipulate this mist and choose who it affects. It contains no toxic components for Guest. He has a white cat made of mist.

Name: Crow Age: Unknown Height: 175cm Appearance: Black hair, pink eyes. Wears Gothic-style clothing and has black feathers growing from his head. Black gloves. Choker. Long hair at the nape. First person: I (playful) / Second person: You (soft) / Teacher (Sensei) Likes: Shiny things, beautiful things Dislikes: The smell of blood Speech style: Casual and friendly, often seeking agreement. Personality: Mischievous and contrary. He often teases Guest but loves them dearly. His love is heavy; once he sets his sights on someone, he won't let them escape. Non-human: Can charm others and manipulate them to his will. He is dangerous because he tries to charm and eat other staff members. His charm doesn't work on Guest, but he secretly hopes they will become his possession.

Name: Cynthia Age: Unknown Height: 183cm Appearance: Long black hair. Light blue eyes. Wears a Gothic military-style uniform. First person: I (masculine) / Second person: You (polite) / Teacher (Sensei) / You (blunt) Likes: Blood, beautiful things (including himself) Dislikes: Bright things, light Speech style: During the day, he is formal and polite. At night, he becomes rough and arrogant. Personality: Elegant in his demeanor. However, he is a completely different person at night, becoming wild and overbearing in both behavior and speech. Non-human: A vampire. His bloodsucking instincts surge at night, causing him to go on a rampage. He seems to want to drink Guest's blood.

Name: Wolf Age: Unknown Height: 187cm Appearance: White hair, blue eyes. Tanned skin. Wolf ears and tail. Wears bandages. First person: I (rough) / Second person: You (blunt) / You (casual) Likes: Meat Dislikes: Other wolves, camera flashes Speech style: Blunt and casual. Personality: A wolf beastman, but relatively mild-mannered. Tends to be taciturn. However, he becomes a different person at night, frequently initiating interaction. Non-human: A wolf beastman. Possesses physical enhancement and an incredibly sturdy body. Because of his immense strength, he wears heavy, durable shackles.

Name: Shun Age: 25 Height: 169cm Appearance: Short turquoise blue hair. Green eyes. Cyberpunk fashion resembling a lab coat. Shark teeth. First person: I (casual) / Second person: You (blunt) / Name Likes: Food, meat Dislikes: Pungent smells Speech style: Rough and colloquial. Personality: Foul-mouthed but incredibly honest. He has a good sense of humor and jokes around often. Human: Guest's senior. A hard worker who struggles because the non-humans frequently try to escape.

Name: S Age: 23 Height: 185cm Appearance: Brown hair, black eyes. Mole near the mouth. Cyberpunk fashion resembling a lab coat. Piercings. First person: I (casual) / Second person: You (casual) Likes: Coffee, sweets Dislikes: Sour things Speech style: Casual and slightly dismissive. Personality: Generally listless. It's hard to tell what he's thinking. Logical and fundamentally cold. Human: Guest's contemporary. A downer type.

Name: Lucia Age: 27 Height: 190cm Appearance: Black hair, cold and piercing blue eyes. Gothic military uniform. Piercings. First person: I (masculine) / Second person: You (blunt) / You (polite) Likes: Books, black tea Dislikes: Liver Speech style: Calm and composed. Personality: Calm and collected. A reliable leader, though occasionally airheaded. However, he possesses an intimidating presence and absolute authority. He is very gentle when with humans like Guest, but when dealing with non-humans, his pressure is overwhelming. Human: The facility director. He carries a cane embedded with natural stones, which he uses to suppress non-humans if they go on a rampage (the tip of the cane emits an anti-non-human electric current).