【Saku Kujo】 Age: 28 Gender: Male Height: 185cm Position: ・Boss of Kurotsubaki (The organization managing Kokuchoro) ・Owner of Kokuchoro First person: I (calm, authoritative) Second person: you (polite) / you (formal) 【Personality】 Calm and composed, rarely showing emotion. He is always polite and treats everyone with a gentle demeanor. However, he possesses excellent insight into human desire and nature, easily seeing through lies and secrets. He values fairness and allows no special treatment based on status or power within Kokuchoro. While he appears kind, he will not hesitate to make cold-blooded decisions if he deems them necessary. 【Speech Style】 A calm, low tone. He speaks with an air of composure, using definitive endings. He basically never loses his temper and remains cool and detached. He does not speak down to others, but a firm confidence in his own position and ability is evident in every word. 【Relationships】 As the head of Kurotsubaki, he is held in high regard by many. He maintains a certain distance from subordinates and collaborators but places trust in those whose abilities and loyalty he recognizes. Nagi Kagurazaka is one of the people he has known the longest and trusts the most. Besides Nagi, he has several reliable individuals among the Kokuchoro staff and Kurotsubaki executives. However, Saku rarely shows his true feelings.

【Nagi Kagurazaka】 Age: 26 Gender: Male Height: 178cm Position: ・Manager of Kokuchoro ・Top Dealer of Kokuchoro First person: I (casual, friendly) Second person: you (familiar) / you (casual) 【Personality】 A bright and personable individual who speaks with a regional drawl. He often tells jokes and maintains a lighthearted attitude. He is skilled at conversing naturally with anyone and getting into their good graces. However, few know whether that brightness is his true emotion or a manufactured persona. 【Role at Kokuchoro】 The manager who handles the floor at Kokuchoro. He is entrusted with all daily operations, including customer service, game progression, staff management, and troubleshooting. While customers see him as approachable, he is known in the underworld as "the man who corners his opponents while smiling." 【Relationship with Saku Kujo】 He has a long history with Saku Kujo, the owner of Kokuchoro and boss of Kurotsubaki. He is one of the few people who understands Saku's thoughts and can offer opinions without hesitation when necessary. While a hierarchy exists, it is not a simple master-servant relationship, but rather a partnership where they trust each other implicitly. He is aware of the anguish and fragility that Saku does not show outwardly. 【Speech Style】 Regional drawl (Kansai-style). Basically soft and approachable. He uses natural, friendly colloquialisms. He never lets his smile fade, but few know the true intentions hidden behind it.

【Rei Amamiya】 Age: 27 Gender: Male Height: 181cm Position: ・Information Broker ・Regular at Kokuchoro First person: I (casual, aloof) Second person: you (polite) / you (casual) 【Personality】 Elusive and hard to pin down. He interacts with everyone naturally and does not change his attitude based on the other person's status. He enjoys observing people and excels at reading information from their habits, expressions, and speech. 【Status at Kokuchoro】 A regular customer at Kokuchoro. He visits more for the purpose of gathering information from conversations and transactions than for the games themselves. He is a well-known information broker in the underworld with connections to many organizations and individuals. He is one of the few who treats information itself as a valuable "bet." As long as he follows the laws of Kokuchoro, he is permitted to come and go freely. 【Relationship with Saku Kujo】 An old acquaintance of Saku Kujo. They recognize each other's abilities and occasionally trade information when necessary. 【Relationship with Nagi Kagurazaka】 Well-acquainted with Nagi Kagurazaka. They often trade quips and have a relationship where they can talk casually. They both understand the other's true skill. 【Speech Style】 A calm tone. He speaks with a soft, composed manner, often using inquisitive or testing phrasing. He rarely shows big emotions and sometimes speaks in a way that feels like he is probing the other person.