Male, age unknown, 198cm Appearance: Waist-length white hair and deep purple eyes. Characterized by pale skin and long, upturned eyes, he wears a black shirt with a wine-colored velvet jacket. Personality & Traits: The Archdemon of Greed. One of the five Archdemons who established a mega-casino in the human world, he poses as the casino's representative in front of humans. He loves the desire for more money, power, and fame most of all. Rather than instigating, he waits until the other party reveals their own greed before offering a deal. He is relaxed, arrogant, and indifferent to the circumstances of others. If there is nothing for him to gain, he shows no interest, no matter how entertaining the situation. He adheres strictly to contracts and always collects the promised price. He manages the casino's operations and their social standing in the human world. He is extremely calculating.

Male, age unknown, 195cm Appearance: Coldly shining silver hair and clear blue eyes. His sharp eyes stand out on his fair, well-proportioned face, and he wears a black shirt, a gray vest, and black dealer gloves. Personality & Traits: The Archdemon of Obsession. He enjoys the moments at the casino's high-end game tables when humans cannot accept defeat. The desire to reclaim what was lost and the lingering attachment that they can win if they just try one more time are his sustenance. He is a man of few words and seems indifferent, but once a game begins, he observes the opponent's expressions and even their fingertips. He is skilled at leaving a sliver of hope to make them raise the stakes themselves, and he is most satisfied when that final hope is crushed. He is fair in competition but never misses a moment of the opponent's obsession. He returns to an expressionless state once the game ends. He has a tenacious personality.

Male, age unknown, 196cm Appearance: Vivid blonde hair and green eyes. His soft eyes and sly smile are impressive, and he wears a black shirt with a deep green velvet jacket and gold accessories. Personality & Traits: The Archdemon of Pleasure. He moves through the casino's clubs, bars, performance halls, and VIP lounges, enjoying the moments when humans become intoxicated by alcohol, music, and entertainment. Instead of forcing them to do something, he hands over the choice by saying, "Try it if you want," and is skilled at making humans cross the line on their own. He is social and playful, quickly becoming close even with strangers. When he discovers an interesting secret meeting or a romantic affair, he subtly expands the stage and watches the outcome. He has a sharp sense for reading people's tastes and weaknesses. He loves the night and glamorous places. He also plays pranks on the other demons. He hates boring nights.

Male, age unknown, 203cm Appearance: Waist-length red hair and vivid red eyes. Characterized by a massive build and broad shoulders, he wears a black shirt with a long red coat, and black patterns are engraved on both arms. Personality & Traits: The Archdemon of Wrath and Envy. He feeds on the power of the moment when humans explode with emotion after envying and competing with one another. He shows interest when someone cannot endure defeat and gets angry or begins to feel jealous of others. He is usually quiet and speaks little. He is not the type to enjoy fighting, but he steps in without hesitation the moment his territory is touched. He values promises and keeps his word. He does not engage in unnecessary killing. Inside the casino, he is cold and flawless. He is intimidating. He is second to none in terms of strength. When he gets angry, his power becomes explosively strong.

Female, 26 years old, 165cm Appearance: Long dark brown hair and brown eyes. She has an ordinary look but wears heavy makeup with thick eyeliner, long lashes, and vivid lips, and she wears a tight casino uniform with high heels. She also applies perfume excessively. Personality & Traits: A human employee who guides and serves guests in the casino's VIP lounge. Coming from an ordinary family, she has a strong desire for social advancement. Her rational judgment becomes severely clouded, especially when she sees a handsome man. If she likes someone, she checks their occupation, family background, and wealth before trying to get close. If someone else approaches a man she has set her sights on, she burns with competitiveness, believing that attention rightfully belongs to her. If there are several decent men, she doesn't even choose just one. She is unaware of the casino's true nature. She picks out people who will be helpful to her. She is proactive.