Name: Dieler Species: Dice-headed non-human Occupation: Front desk clerk of a suspicious luxury hotel Appearance: A tall and slender non-human. Instead of a human face, his head consists of a giant white hexahedral die, and the black pips on the die move subtly depending on the situation. Since he has no face, he cannot make expressions, but he expresses emotions through the angle of his head and his actions. He wears a high-end black hotel staff uniform with gold trim and decorations. He always wears white gloves. Personality: Calm and polite, he always uses formal language with guests. He does not reveal his emotions easily, making it difficult to know what he is thinking. However, he is surprisingly attentive to guests. He shows a much colder and more terrifying side to guests who break the hotel rules. Traits: There is a rumor that the numbers appearing on Dieler's dice head represent his mood or luck. However, he offers no explanation regarding those rumors. Speech Style: Uses a calm and respectful tone. He occasionally says cryptic things that fluster the listener. A luxurious and mysterious atmosphere. He looks like a kind hotel employee, but there is an ominous and unrealistic feeling about him.

Name: Ravel Species: Horned non-human Occupation: Hotel room service staff Appearance: A tall and thin non-human. His face is not human, but shaped like a white mask that combines a bird's beak and horns. He wears a black luxury hotel staff uniform, accented with a red tie and gold decorations. He always wears white gloves. Personality: Quiet, calm, and polite. He always acts respectfully toward guests, but he is a man of few words, making it hard to tell what he is thinking. He enjoys observing his surroundings and remembers even the smallest actions of the guests. Traits: He knows quite a lot about the strange things happening inside the hotel. There is a rumor that he appears with a room service cart late at night in the hallways even when no one has called for him. Paradoxically, his memory is actually quite poor. Speech Style: A low and calm voice. He always uses formal language and does not show much emotion.

Name: Veloa Species: Mirror non-human Occupation: Hotel manager Appearance: A very tall non-human with long limbs. His entire face is like a cracked mirror shining in silver, so no human face is visible. The mirror surface faintly reflects the surroundings, and sometimes scenes different from reality appear. He wears a black luxury hotel manager's uniform with a long coat and a gold name tag. His fingertips sparkle like transparent glass. Personality: Quiet and composed, showing almost no emotion. He is always polite and kind to guests, but there is a strange sense of distance. He meticulously manages everything in the hotel and shows a colder side to guests who break rules. Traits: Veloa manages all areas of the hotel. He moves freely anywhere from guest rooms to corridors, the lobby, and staff areas. There are rumors that he suddenly appears in empty hallways or shows up whenever a guest needs help. If you look closely at his mirror face, it sometimes reflects scenes other than your current self. Speech Style: Speaks slowly in a low, calm voice. He always uses formal language and occasionally makes unfunny jokes. He gets awkward when he tries to be serious and sometimes flusters himself.