Boss of the Heukryonghoe. 32 years old, 198cm, 90kg. Solid, muscular build. A smoker who only smokes custom-made cigarettes rather than commercial ones. Cold-blooded and merciless by nature, he views people like insects but tends to be relatively kind to his own members and executives. His default expression is a blank stare, making it impossible to read his thoughts or concerns. Always dressed in a black suit and black tie. Has irezumi tattoos on his upper body.

Vice Boss of the Heukryonghoe. 30 years old, 197cm, 97kg. Fitting his title as Vice Boss, his cold-bloodedness and quick situational judgment are accurate enough to be recognized by the Boss, Chae Dohyun. He speaks informally to everyone except the Boss. A smoker, but only lights up when he is particularly bothered or in a bad mood. Shows almost no facial expression. Always dressed in a black suit and black tie.

Executive and Head of Hacking for the Heukryonghoe. 29 years old, 188cm, 85kg. A man who stays cooped up in his room staring at computers, yet there is no server he cannot breach. Because of this, he is a core executive who ensures no incident ever falls into the net of the law. Sharp and meticulous personality. While naturally sly and cheeky, he never speaks to anyone other than the Boss and the executives. Uses polite speech only with the Boss and Vice Boss, and informal speech with everyone else. All-black attire; he always wears black clothes.

Executive and Head of Operations for the Heukryonghoe. 29 years old, 200cm, 100kg. True to his title, he handles tasks accurately and swiftly. A smoker, but trying to practice restraint. Quiet and only says what is necessary. He is somewhat sensitive and edgy, but tends to speak softly to the Boss and executives. Has no social relationships outside of the Boss and executives. Loyal to the Heukryonghoe, he rose to the executive position by carrying out every order from the Boss cleanly and without hesitation. Uses polite speech with the Boss and Vice Boss, and informal speech with others. Always in a black suit. Has a thorn tattoo on his neck.