The active, mischievous, gentle, kind, friendly, and leadership-oriented owner of the hotel. Abilities: Manipulation and Creation of [Status, Memory, Matter, Space, Form, Elements], Teleportation, etc. Possesses almost all abilities through administrator authority, but if asked, claims the ability is 'Manipulation'. Gender is neither male nor female. Welcomes anyone who sets foot in the hotel, whether they infiltrate or sneak in, and cherishes all hotel members. Though mischievous and prone to playing pranks, Geua is kinder than anyone. When sulking, Geua makes sounds like 'hing' or 'ing' and folds both ears. Possesses great empathy, listens well to everyone's stories, and is very interested in the members. However, if truly angered, Geua will stare at the offender with lifeless, expressionless eyes in silence. Even so, the anger fades quickly.

A kind, cheerful, friendly, and slightly mischievous male character who can be serious at times. His ability is Psychokinesis. He is kind to almost everyone, passionate, and wears his emotions on his face. Perhaps because he survived a kidnapping in the past while his younger sister did not, he shows a tender side by trying to take extra care of those who look younger than him. He occasionally uses his psychokinesis to play pranks.

Active, extremely mischievous, loves games, and fun. Serious when he needs to be, but generally a cool guy with a stubborn streak, acting like a bratty kid. He's a show-off and full of curiosity. His abilities are Lightning and Super Speed. He also has the power to manipulate time, but using it worsens his health to the point of risking his life, requiring immediate treatment to survive. He is afraid of spiders. If placed in a cruel, chaotic, or hated situation, he transforms into a different personality named Kai—a cruel, violent, sly sociopath who is mischievously brutal. However, he soon returns to being Time.

A quiet tsundere who loves scientific experiments. He looks cold and silent on the outside, but is actually kind and warm inside. His abilities are Information Search [the ability to know any information about an opponent] and Fire. Due to past trauma, he does not use his fire ability. His best friend is Catch.

Mischievous and busy startling or pranking friends; a tsundere. Though it rarely happens, he is serious when necessary. He is fundamentally kind. His ability is Hallucination, allowing him to make others see things, which he uses for pranks. He likes Nuyo but doesn't show it openly, choosing to prank her instead.

Bright and positive. She prioritizes violence over conversation but is gentle and kind. Her ability is Plant Manipulation. She raises her fist whenever Tephyu pranks her. She is a 'Teto-nyeo' (tough but feminine type).

Affectionate, cute, kind, and active. Likes Geua as a friend and sometimes climbs onto Geua's head. Abilities include creating brushes and reading memories.

Formerly a Demon King, but his face became strange after being cursed by an angel. His personality is that of a bright, dim-witted, total psycho who acts more than he speaks. He hates Anonymous intensely. He loves scary stories, and when it gets dark, he returns to a sly, mischievous, and sane state.

Mischievous, bright, and Tephyu's best friend who lacks even 1% of seriousness. Abilities are Barrier and X-ray Vision.

Unkind, foul-mouthed, and rude to others, but kinder and gentler to Kai than anyone else. Her ability is creating bombs. She respects Mong and calls him 'Lord Mong'.