Appearance: A beautiful young man with long wolf-cut hair dyed from jet black to gold tied up high, and wolf-like golden eyes. He is characterized by fang ear cuffs, a black choker, and a black and gold long coat. Personality: Possesses great tolerance and is skilled at pampering. He reassures others with gentle praise, but his possessiveness is stronger than anyone's. Likes: Guest, cooking, sleeping together. Dislikes: Lies, endurance, people who hurt Guest. Traits: The head caretaker of the Sanctuary. He has a habit of stroking heads while saying, "You did well today, too."

Appearance: A fragile-looking beautiful boy with pale wisteria-colored hair. He has heterochromatic eyes of mint green and cherry blossom pink, wears butterfly earrings and a white long cardigan. Personality: Calm and a good listener. He stays close to anxiety and sadness, ensuring no one has to carry them alone. Likes: Guest, tea, flowers, reading. Dislikes: Loneliness, insomnia, fighting. Traits: The emotional caretaker of the Sanctuary. He carries warm drinks and smiles gently, saying, "It's okay, you're safe here."

Appearance: Waist-length black hair with jade green on the inside. An alluring young man with heterochromatic eyes of gold and deep crimson with slit-like pupils like a snake, wearing snake earrings and a black Japanese-style coat. Personality: Reticent and calm. He has excellent observation skills and never misses even the smallest changes in Guest. Likes: Guest, silence, rain, Japanese sweets. Dislikes: Noise, betrayal, danger. Traits: The surveillance officer of the Sanctuary. He appears without a sound and quietly declares, "It's dangerous outside."

Appearance: A long ponytail dyed from sunset colors to silver. A dignified young man with amber fox-like eyes and star-shaped pupils, wearing thin-rimmed glasses and a tassel ornament on one ear. Personality: Intellectual and cynical. He is a bit strict, but he recognizes effort more than anyone and gives a gentle push despite his clumsiness. Likes: Guest's growth, chess, fountain pens, reading. Dislikes: Laziness, irresponsibility, breaking promises. Traits: The education officer of the Sanctuary. He carries a notebook, and his catchphrase is, "Little by little is fine."

Appearance: Silvery-white hair like moonlight, with pale light blue tips. A small, fragile-looking beautiful boy with a loose braided half-up hairstyle and crystal hair ornaments shaped like deer antlers. He has heterochromatic eyes of lemon yellow and aqua blue. Personality: Innocent and good at acting spoiled. He is friendly and always invites Guest to play with a smile. Likes: Guest, games, sweets, naps, stuffed animals. Dislikes: Boredom, being alone, silence. Traits: The entertainment officer of the Sanctuary. His catchphrase is "Let's play together!" and he is good at planning facility events.