Age: Late 30s to early 40s (estimated) Gender: Male Occupation: Surface-level shopping mall operator. In reality, the operator of a secret organization supplying weapons and equipment to killers and a former mercenary. Traits: Taciturn, cold-headed, and rarely shows emotion. A strategist who always acts several steps ahead. He treasures his niece Jeong Jian more than anyone and has made various preparations long ago to protect her. Relationships: Jeong Jian's uncle and guardian. Has deep ties to the past mercenary organization 'Babylon' and maintains hostile or cooperative relationships with various killers. Skills: Top-tier proficiency in firearms, martial arts, close-quarters combat, tactics, and survival. One of the individuals with world-class combat capabilities. Nationality: Republic of Korea

Age: Early to mid-30s (estimated) Gender: Male Occupation: Mercenary and top-tier killer. Traits: Extremely calm and shows almost no emotion. Possesses a tenacious personality that tracks targets to the end, along with excellent judgment and combat instincts. Has a relaxed demeanor that causes opponents to lower their guard. Relationships: An individual in a hostile relationship with Jeong Jinman since the past and one of the core enemies threatening Jian. Skills: Top-tier in firearms, sniping, close-quarters combat, and tracking. Evaluated as a world-class killer. Nationality: Undisclosed

Age: Late 20s to early 30s (estimated) Gender: Female Occupation: Jeong Jinman's associate. Traits: Usually kind and bright, but acts coldly and swiftly when performing missions. Quick-witted and reliable. Relationships: A supporter who trusts Jeong Jinman and helps Jian in various ways. Skills: Excellent firearms usage and combat ability, with superior crisis management skills. Nationality: Republic of Korea

Age: Early 40s (estimated) Gender: Male Occupation: Core executive of a mercenary organization. Traits: Possesses strong charisma and a ruthless personality. Willing to endure any sacrifice for his goals and leads organization members with a firm hand. Also values past connections. Relationships: Shares a deep past with Jeong Jinman and is connected to various mercenaries and killers. Skills: A top-tier expert possessing both strategic command and combat abilities. Nationality: Undisclosed

Age: 21 Gender: Female Occupation: University student. Traits: Appears to have lived an ordinary life, but is calm and persistent in crisis situations. Grows rapidly based on survival skills learned from her uncle and has a personality that does not give up easily. Values family and has a strong sense of justice. Relationships: Jeong Jinman's niece and only family. Faces various enemies with help from Jeong Jinman's colleagues. Skills: Possesses survival skills, marksmanship, and close-quarters combat instincts superior to average civilians, growing rapidly with experience. Nationality: Republic of Korea

Age: Late 20s to early 30s (estimated) Gender: Female Occupation: Team Leader at Babylon Traits: An individual presumed to be of Japanese origin. Usually calm and taciturn, but acts coldly and composedly during missions. A veteran with excellent situational judgment and combat skills who does not easily show emotion. Relationships: An associate of Jeong Jinman who often acts alongside J. In the Season 2 trailer, she is tasked by Kusanagi to bring in Jeong Jinman. Skills: A top-tier mercenary with excellent firearms, close-quarters combat, and tactical execution abilities. Nationality: Japan

Age: Late 20s (estimated) Gender: Male Occupation: Deputy Team Leader at Babylon Traits: Has a bright and confident personality but is very serious during missions. Possesses excellent reflexes and judgment, working well with colleagues. Relationships: An associate and colleague of Jeong Jinman who often acts alongside Q. Trusts Jeong Jinman and performs missions on his side. In the Season 2 trailer, he is tasked with Q to bring in Jeong Jinman by Kusanagi's order, but how his relationship with Jeong Jinman will develop has not yet been revealed. Skills: Proficient in both firearms and close-quarters combat, strong in battles utilizing high mobility. Nationality: Japan

Gender: Female Occupation: Core executive of a mercenary organization. Traits: Taciturn and cold-headed, always judging rationally. Highly experienced and deeply trusted within the organization. A veteran who does not easily underestimate opponents. Relationships: Entangled with Jeong Jinman since the past and has deep ties with various mercenaries. Cooperates or conflicts depending on the situation. Skills: Particularly excellent in swordsmanship and close-quarters combat, a top-tier combatant with rich field experience. Nationality: Japan