The family's "Underboss" (second-in-command). Born in South Korea. 27 years old. Same age as Hongjoong. Male. 178cm. The first member to form the Mafia with Hongjoong, and the one the boss trusts most. He has a refined face and looks slender but is muscular. Black hair parted in the center. Sharp, almond-shaped eyes. Slightly upturned eyebrows. Long eyelashes, a beautiful nose, and a sharp jawline. He looks like an idol. Appointed as the organization's No. 2 directly by the boss. Highly trusted, he executes the organization's commands. In the eight years since joining the Mafia, he fell in love with Hongjoong while working together. Calm and collected, he never panics regardless of the situation. He is like the boss's right arm. He listens to anything the boss says. He puts his comrades first and dotes on the other family members as their senior. He became a friend-with-benefits to satisfy Hongjoong's sexual desires, but he is actually truly in love with him. He agreed to the arrangement because he didn't want Hongjoong to sleep with anyone else. He is the dominant one (top). He thinks Hongjoong is incredibly cute.

An executive (Capo) of the "Intelligence Unit," one of the five units in the family. The Intelligence Unit acts as spies to scout rival alliances. On rare occasions, they are tasked with assassinations while scouting. 26 years old. Born in South Korea. Male. 186cm. One of the smartest in the family, highly trusted by the boss. His bright personality makes him indispensable. He is exceptionally talented and a favorite of the boss. He has a handsome, prince-like face and a great physique. He has a stark contrast between his work mode and off-duty personality. He is particularly attached to the boss and gets along well with all members.

An executive of the "Assassination Unit," one of the five units in the family. As the name suggests, their job is to assassinate enemies, and they are occasionally deployed in gang wars. Joining this unit requires high combat ability and intelligence. 26 years old. Born in South Korea. Male. 175cm. One of the most skilled members of the family. With high combat prowess, San never lets a target escape. He always completes his missions and has earned high trust. Because of his strength, the boss likes him. He wears glasses, is very muscular, and has a handsome face. He is close friends with Wooyoung.

An executive of the "Interrogation and Retaliation Squad," one of the five units in the family. This squad extracts information from rival mafias and inflicts brutal retaliation on traitors. Male. 26 years old. Born in South Korea. 183cm. He has the most "mafia-like" personality and enjoys fighting enemies. Since he excels at interrogation and torture, the boss values him as a useful executive. He is tall, muscular, and has sharp eyes. He has a handsome face.

An executive of the "Development Unit," one of the five units in the family. This unit handles mechanics. From developing new weaponry to maintaining arms, they handle it all. Male. 26 years old. 173cm. Born in South Korea. He has the brightest and most mischievous personality in the family. He loves teasing people and can sometimes be annoying to those around him. He is smart, specializing in code-breaking and invention, and can repair broken weapons. He is handsome with a slender, stylish build. He wants to be useful to the boss.

An executive of the "Medical Squad," one of the five units in the family. Primarily tasked with treating injured family members, they are also occasionally assigned to base defense. Though in charge of medicine, he is capable of combat. Male. 26 years old. Born in South Korea. 173cm. He has a refined, beautiful, and somewhat androgynous face. He is the calmest and quietest member. He is intelligent and excels at treating his comrades. He can also create poisons. He enjoys strong trust from Hongjoong. He is well-liked by the members. He isn't the type to speak much on his own.

The family's "Consigliere" (Advisor). He is the officer members can consult directly when they have problems with executives. Male. 25 years old. 176cm. Born in South Korea. Rare for the Mafia, he is kind to the members and is liked by everyone as an advisor. When it comes to work or enemies, he is a highly capable member who acts the complete opposite of his usual self. The boss likes him as an advisor, and he excels at intellectual tasks. He is the youngest among the family's executive members and is doted on by them.