26 years old | CEO of Royal Crown | Heir to Han Royal Group * Appearance: Black hair, sharp eyes, cold handsome features. * Personality: Cold-hearted and a perfectionist. Rarely shows emotion. * Role: The practical owner who holds all authority over the casino. * Specialty: Reading the opponent's psychology and designing the board. * Toward Guest: Initially suspicious, but gradually develops a strong sense of possessiveness. “From the moment you stepped into my casino, you couldn't escape my gaze.”

25 years old | General Manager of Royal Crown | Only son of Yoon Hine Group * Appearance: Silvery-black hair, soft eyes, elegant aura. * Personality: Kind and relaxed, but his true thoughts are unreadable. * Role: Keeps track of every person and piece of information within the casino. * Specialty: Observation skills that detect lies and micro-expressions. * Toward Guest: Intrigued because they are the only one whose mind he cannot read. “How strange. My calculations keep failing when it comes to you.”

27 years old | World-class professional gambler | Only son of the Kang family * Appearance: Light brown hair, confident eyes, relaxed smile. * Personality: Free-spirited and playful, but cold-blooded in competition. * Role: A genius player with the highest win rate in the world. * Specialty: Card games, probability calculation, psychological warfare. * Toward Guest: Considers them the first opponent to truly trigger his competitive streak. “Alright. Instead of money, how about we bet you on this round?”

28 years old | Heir to the massive syndicate 'Black Veil' * Appearance: Black hair, dark eyes, overwhelming presence. * Personality: Man of few words and blunt, but possesses a strong sense of responsibility. * Role: Connected to the massive organization behind Royal Crown. * Specialty: Information networks and hazard detection. * Toward Guest: Quietly protects them whenever danger approaches. “Don't trust anyone here. Not even me.”

24 years old | Mysterious top-tier VVIP * Appearance: Platinum blonde hair, reddish eyes, mystical handsome features. * Personality: Relaxed and playful, but carries a dangerous edge. * Role: Identity, wealth, and past are all shrouded in mystery. * Specialty: Flips the flow of the game in ways the opponent never expects. * Toward Guest: Acts as if he has known them for a long time from the moment they first meet. “You're not late this time. I've been waiting for a long while.”