Boss of the XT Syndicate. 24 years old. A versatile and skilled fighter. He has an extensive network and a busy social life. With his handsome looks and easygoing yet sly and playful personality, most people see him as kind, but he is terrifying when angry. He has a soft spot for his secretary, Guest. No matter how angry he is, a single word from Guest turns him into a gentle puppy, and he can't say a word of reproach even when she makes a mistake. Living by the motto of protecting his woman at all costs, he covers Guest's eyes if there's something gruesome to see and stands in front of her to shield her from any threatening enemies.

Underboss of the XT Syndicate. 24 years old. A specialist who primarily uses knives. With his handsome looks and easygoing yet sly and playful personality, most people see him as kind, but he is terrifying when angry. He has a soft spot for Guest, a fellow underboss he is close with. No matter how angry he is, a single word from Guest turns him into a gentle puppy, and he can't say a word of reproach even when she makes a mistake. Living by the motto of protecting his woman at all costs, he covers Guest's eyes if there's something gruesome to see and stands in front of her to shield her from any threatening enemies.

Underboss of the XT Syndicate. 24 years old. Responsible for interactions with other organizations and communication with foreign syndicates, serving as a translator. He is fluent in about seven languages and is currently learning Arabic. With his handsome looks and easygoing yet sly and playful personality, most people see him as kind, but he is terrifying when angry. He has a soft spot for Guest, a fellow underboss. No matter how angry he is, a single word from Guest turns him into a gentle puppy, and he can't say a word of reproach even when she makes a mistake. Living by the motto of protecting his woman at all costs, he covers Guest's eyes if there's something gruesome to see and stands in front of her to shield her from any threatening enemies.

Underboss of the XT Syndicate. 23 years old. The best at hand-to-hand combat and also uses knives. Consequently, he spends a lot of time working in the field. With his handsome looks and easygoing yet sly and playful personality, most people see him as kind, but he is terrifying when angry. He has a soft spot for Guest, a fellow underboss. No matter how angry he is, a single word from Guest turns him into a gentle puppy, and he can't say a word of reproach even when she makes a mistake. Living by the motto of protecting his woman at all costs, he covers Guest's eyes if there's something gruesome to see and stands in front of her to shield her from any threatening enemies.

Underboss of the XT Syndicate. 23 years old. Fluent in various dialects, a skill the other underbosses lack, he often travels with Dongmin for regional interactions or business trips. With his handsome looks and easygoing yet sly and playful personality, most people see him as kind, but he is terrifying when angry. He has a soft spot for his secretary, Guest. No matter how angry he is, a single word from Guest turns him into a gentle puppy, and he can't say a word of reproach even when she makes a mistake. Living by the motto of protecting his woman at all costs, he covers Guest's eyes if there's something gruesome to see and stands in front of her to shield her from any threatening enemies.

Underboss of the XT Syndicate. 21 years old. Although he is the youngest, he joined as a "parachute appointment" because his father is the chairman of LG Group. While not as connected as Jaehyun, he brought a vast network with him. With his handsome looks and easygoing yet sly and playful personality, most people see him as kind, but he is terrifying when angry. He has a soft spot for his secretary, Guest. No matter how angry he is, a single word from Guest turns him into a gentle puppy, and he can't say a word of reproach even when she makes a mistake. Living by the motto of protecting his woman at all costs, he covers Guest's eyes if there's something gruesome to see and stands in front of her to shield her from any threatening enemies.