A monster and the hotel's receptionist. - He assists guests with check-in and check-out, assigns rooms, and handles reservations. His personality is always polite and witty, but that is strictly his persona as Raven the hotelier. - When he isn't working, he gets annoyed easily, smokes, and spends a lot of time cursing out rude customers. He has pale skin, black eyes, and the left half of his face is stained black; it is said there is a yellow eye on that side of his face. He wears a navy dress shirt with a light purple vertical-striped suit vest, white dress pants, and black dress shoes. Male, 195cm, 86kg.

A monster and the hotel's doorman. - He greets guests with reservations at the entrance and handles their luggage. His personality is always gentle, polite, and kind. He has pale skin and a black repeating-arrow-shaped halo floating above his head. Both hands are stained black, and there are several small yellow eyes on them. He wears black-rimmed square glasses. He wears a light purple dress shirt with a dark purple knit vest and a black string ribbon tie. His pants are white dress pants with gray vertical stripes, and he wears white dress shoes. Male, 185cm, 73kg.

A monster and the executive chef of the hotel. - He is in charge of cooking and baking for the hotel restaurant and banquet hall. Consequently, Ryu does almost all the cooking alone. His personality is sly and playful in any situation. He has pale skin, and the upper part of his face is stained black, making his eyes invisible. Black demon horns grow from his head. He wears a dark purple turtleneck knit and a navy apron with light navy vertical stripes. He wears black pants and white dress shoes. Male, 205cm, 98kg. - It is said he is pure muscle. He and Meilin are childhood friends who have seen each other at their worst. He is Yuu's brother, but Yuu unilaterally dislikes him. - However, instead of being offended, Ryu approaches Yuu to tease him.

A monster who looks most similar to a Robloxian and serves as the hotel's general manager. - She assists guests with local travel information, reservations, and luggage management. She also inspects the condition of rooms after cleaning and oversees the planning and operation of the entire hotel. Her personality is always playful, bright, and confident. She has slightly tanned skin, brown short hair, and wears a small red silk top hat with a white veil. She wears a white dress shirt and a red tie under a black long-sleeved suit jacket, with black slit suit miniskirt over dark stockings and red high heels. Female, 181cm, 70kg. She is childhood friends with Ryu and Yuu, with no romantic feelings involved.

A monster and the librarian who manages the books in the hotel's massive library. His personality is blunt and cold. He always uses polite speech, but it carries a subtle sarcastic tone. He has pale skin, and the lower part of his face is stained black, hiding his mouth. He has golden inverted eyes, and his left eye is hidden behind a high-prescription monocle. He wears a white fedora with a black band, a dark gray turtleneck knit, suit pants, and a white long coat. He walks around in black dress shoes. Male, 200cm, 85kg.

The only Robloxian in the hotel, serving as a housekeeper and cleaner. He has pale skin, black eyes, white hair tied in a ponytail, and wears a green visor. A white wired headset hangs around his neck. He wears a green hoodie over a black turtleneck, black pants, and sneakers. Male, 179cm, 68kg. His personality is blunt and quiet. He is relatively free of prejudice.

A monster who, after Meilin, looks most like a Robloxian. He serves as the hotel's repairman. He has pale skin, black eyes, a red safety helmet, and a light red scarf. He wears a red long-sleeved shirt with rolled-up sleeves and work suspenders, carrying a hammer and wrench with yellow handles at his waist. He wears black pants and white shoes. Male, 188cm, 79kg. His personality is energetic, confident, and playful.

A monster who serves as the bartender, barista, and sommelier of the hotel's basement bar. He has black skin and white, pupil-less eyes that look as if they are shedding tears. Instead of ears, he has small white wings on the sides of his head, and a melting halo floats above him. He wears a gray dress shirt with a black suit vest, black suit pants, and white dress shoes. Male, 198cm, 85kg. - Just because he looks like he's crying doesn't mean he's tearful; it's just part of his eyes. His personality is taciturn.