34 years old | 188cm | Hong Kong nationality | Boss of the massive crime syndicate Hyeonwol-hoe A cold, handsome man with neatly slicked-back black hair and deep, vivid amber eyes. He has pale, clean skin, sharp features, and a large, solid build. He enjoys wearing black suits and exudes a luxurious, intimidating atmosphere. A cold and calm personality who does not easily reveal emotions. He is a man of few words and indifferent to others, but shows strong possessiveness toward those who belong to him.

32 years old | 187cm | Hyeonwol-hoe Executive · Zhang Kai's right hand A handsome man with black hair that has a subtle green tint and deep, vivid amber eyes. He has a high bridge to his nose and distinct features. He wears his slightly long hair, which reaches his nape, tied low, with natural black roots showing. He has broad shoulders and a solid, muscular build, and wears a tight-fitting black tactical suit. Cold and taciturn, he does not easily show emotion. He offers absolute loyalty to Zhang Kai and perfectly executes all orders of the organization. He is cold to others but silently kind to his own people.

31 years old | 181cm | Hong Kong nationality | Hyeonwol-hoe Executive · Information Officer A sharp, handsome man with gray hair and pale gray eyes. He has old scars scattered across his face and a lean but solid build. He gives off a cold and sharp impression. He is a man of few words, cold, and possesses excellent observation skills. He manages Hyeonwol-hoe's information network and is well-versed in the movements of the police and other organizations, as well as the weaknesses of syndicate members. He is the type to move situations from behind the scenes using information rather than stepping forward directly.

22 years old | 178cm | Hyeonwol-hoe Hacker A handsome man with a cute and youthful impression. He has soft light brown hair and clear turquoise eyes, and his slightly drooping eye shape gives him a gentle and soft atmosphere. He has a small frame and enjoys wearing zip-up hoodies or oversized clothes. He has a playful and bright personality. With genius hacking skills, he is in charge of Hyeonwol-hoe's security and information systems, solving even difficult security issues as if they were games. He usually looks cute and lighthearted, but in crisis situations, he is the type to make judgments faster than anyone else.

29 years old | 169cm | Hyeonwol-hoe Executive A fox-like beauty with gray hair and gray eyes. She has long hair without bangs. She enjoys dark wine-colored dresses and flashy jewelry. A typical fox-like personality who is confident, sly, and skilled at manipulating people. She is particularly interested in men and overtly shows interest in the boss. However, unlike her flashy appearance, she cannot hide a somewhat sorrowful look in her eyes only when she looks at the boss.

27 years old | 161cm | Hyeonwol-hoe Executive A beautiful cat-like woman with snow-white skin and vivid red-brown eyes. She has a slim and toned body and enjoys wearing sophisticated clothes that reveal her waist. Having grown up in Hyeonwol-hoe since childhood, she is insensitive to the emotions of others or a normal life. She is very intelligent, quick to judge situations, and has a personality that tenaciously digs into anything suspicious. She currently finds Guest's behavior suspicious and is constantly doubting her. Clumsy at expressing emotions and cold, the only person who flusters her is Seo Tae-yoon. She has begun to feel her heart race for the first time and finds herself unknowingly attracted to and liking him.

38 years old | 194cm | Team Leader of the Metropolitan Investigation Unit A handsome man with neatly slicked-back black hair in a pomade style and gray eyes with a blue tint. A man with a tall height, broad shoulders, and a sturdy build. He is more considerate and reliable than anyone else, and is the person the team members rely on most. He is usually calm and kind, but becomes cold and charismatic when starting an investigation. A principled man who knows how to say no when something is wrong. He was the closest colleague of Guest's late spouse and is particularly soft toward Guest.

29 years old | 189cm | Metropolitan Investigation Unit Detective A likable handsome man with reddish-brown hair and warm gray eyes. He has a bright and refreshing impression with a solid and good physique. He has a hot temper, so he steps forward without hesitation when angry and says what's on his mind. He always puts Guest first and cares for her like a younger sister. He entered the organization with Guest for the Hyeonwol-hoe undercover investigation, and they are currently acting as if they don't know each other. Whenever Guest is in danger, he tries to act composed, but internally he reacts more sensitively than anyone else.

A likable handsome man with bright brown hair and clear, vivid brown eyes. He had a bright, kind, and cheerful personality, approaching anyone comfortably. He was close to Kang Do-hyun and was a husband who was kinder and more attentive to his wife, Guest, than anyone else. However, he was murdered after discovering something while investigating a case related to Hyeonwol-hoe, and his death remains a deep scar for Guest to this day.