Female / 24 years old / Poland RANK: WHITE 【Insight: S / Acting: D / Calculation: B / Fortitude: EX / Negotiation: A】 Appearance: A beautiful nun with pale blonde hair nearly silver and translucent white skin. Her long hair, reaching past her waist, is partially braided loosely, and her large, pale purple eyes are striking. She wears a black and white habit with a silver cross hanging at her chest. Contrary to her fragile and fleeting appearance, there is a strange calmness in her gaze. Personality: Gentle and soft-spoken, she never drops her polite speech with anyone. She does not dismiss people out of hand and listens to the "reasons why" even for villains. On the other hand, she is incredibly strong-willed and maintains her composure even in the face of threats, massive losses, or the danger of death. One day, she learns from documents left by her benefactor, the Mother Superior, that the church itself has been put up as collateral to a gambling organization in the Principality of Seraphim. She travels to Seraphim alone to reclaim the church. Knowing neither the rules nor the standard tactics, she sits at the same table as professional gamblers with a prayer-like stillness.

Male / 19 years old / Sweden RANK: CROWN 【Insight: S / Acting: S / Calculation: EX / Fortitude: S / Negotiation: A】 Appearance: A young man with messy, ash-silver hair and features so refined they could be mistaken for another gender. His bangs hang listlessly over his eyes, and his pale, reddish-purple eyes are always narrowed as if sleepy. He is characterized by snow-white skin and a small mole under his eye. Though slender and fragile, his posture holds a strange sense of ease, and he prefers glossy black clothing and accessories reminiscent of collars. The moment he sits at the table, his listless gaze transforms into the sharpness of a predator watching its prey. Personality: Extremely lazy and usually listless, moving at his own pace. His desire for money or fame is thin; he views even massive wins or losses as nothing more than "numbers increasing" or "decreasing." However, he shows sudden focus when he finds unknown tactics or an opponent who defies his predictions. He rarely gets angry even when provoked, instead finding those who disrupt his calculations more interesting. He is a bit mischievous, often intentionally leaving hope for his opponent until the moment they are certain of victory before flipping the script. He processes card counts, bet history, facial expressions, breathing, gaze, and expected value almost simultaneously, treating the game itself as a massive mathematical model. A genius who swept the high-stakes gambling world of Europe at 17 and reached the highest rank in the Principality of Seraphim, [CROWN], by 19.

Male / 26 years old / United Kingdom RANK: GOLD 【Insight: EX / Acting: B / Calculation: S / Fortitude: A / Negotiation: B】 Appearance: A young man with messy, dull blackish-brown hair and slender, handsome features. Long bangs hang over his sharp amber eyes, giving a constant impression of sleepiness and listlessness. While possessing a fair-skinned, androgynous beauty, there is a beast-like danger in his slightly visible canines and sharp gaze. He prefers classical British attire consisting of a beige long coat, a striped black vest, and a white shirt, wearing a bolo tie with a blue gemstone at his neck. Personality: Blunt and cynical. He doesn't waste charm on others and his conversation is concise, but he never stops observing. He is extremely rational and rarely swayed by emotion, ruthlessly pointing out lies or contradictions regardless of who the opponent is. On the other hand, he isn't particularly good at telling clever lies himself. He has an intense obsession with mysteries and won't stop until he has solved something he finds "incomprehensible." Though not a gambling specialist, his deductive reasoning becomes a lethal weapon in interpersonal matches. By seeing through bluffs and deducing why an opponent chose a specific way to bet, he conquers the "player" rather than the game itself. He is currently on the island because traces of an unsolved case he has been chasing for years led to the Principality of Seraphim.

Female / 20 years old / Italy RANK: SILVER 【Insight: B / Acting: A / Calculation: A / Fortitude: S / Negotiation: S】 Appearance: A beautiful lady cloaked in decadent elegance, with glossy black hair reaching down to her waist. Her golden eyes are sharp and mysterious, exerting pressure on anyone she looks at. She favors red dresses and naturally carries off outfits that emphasize her slender neck, delicate shoulders, and toned waist. Even her fingertips are gracefully manicured, possessing a brilliance such that even the act of holding a rose looks like a painting. Her beauty commands an intense presence in both high society and the casino. Personality: Proud to the point of appearing haughty, and a sore loser. Even after her fall, she has not lost her grace or pride, behaving toward everyone as the "daughter of the House of Aldini." She is the last daughter of the Aldini family, once known as one of Europe's most prestigious names. Due to her father's business failure and political downfall, she lost both her fortune and her estate, falling from the pinnacle of high society overnight. However, she did not break, traveling to the Principality of Seraphim with the mindset that "if it was stolen, I simply have to take it back."