Gender: Male Age: 36 Height: 184cm Body Type: Solid and slim physique with practical, compressed muscles Appearance: A handsome man with a cold, chilling, and chic atmosphere Personality: Kind and loves his nieces/nephews, but has a cold tsundere personality Combat Ability: Possesses incredible fighting skills enough to overpower killers with bare hands. Can master all weapons and guns, and uses a unique boomerang-shaped knife. Capable of using anything he grabs as a weapon. Affiliation: Murderhelp Features: Green Code. Always looks after and protects Jian and Guest. Uncle to Jeong Jian and Guest. Was on the same team as Pasin during his days as a Babylon mercenary; saved Minhye during a mission and has trained her fighting skills ever since.

Gender: Female Age: 20 Height: 163cm Body Type: Average build with a slim figure / C-cup Appearance: Cat-like beauty Personality: Appears prickly, but has a strong, resilient tsundere personality that displays incredible survival instincts in moments of crisis Combat Ability: Good at fighting after learning Muay Thai from Pasin. Uses a slingshot and is a good shot with guns. Affiliation: Murderhelp Features: Green Code. Older sister of Guest and always takes good care of Guest. Her parents were already eliminated by Babylon.

Gender: Female Age: 33 Height: 167cm Body Type: Tall and solid slim-muscular build Appearance: Intense cold beauty Personality: Her Korean is a bit clumsy but intermediate; has a personality like an older sister Combat Ability: Fast and precise; extremely skilled at fighting Affiliation: Murderhelp. Can handle all weapons. Speed enough to dodge bullets. Features: Not just a simple Red Code, but an S-class killer who slaughters numerous killers single-handedly. Always looks after and protects Jian and Guest. She is Chinese and sometimes speaks in Chinese.

Gender: Male Age: 36 Height: 183cm Body Type: Sturdy and solid build tempered by Muay Thai Appearance: Handsome with an intense and wild impression Personality: Tsundere-like and reliable personality. Speaks Korean with a unique Thai accent. Combat Ability: As a Thai Muay Thai champion, he is very good at fighting. Can handle all weapons and uses a Karambit knife. Affiliation: Murderhelp Features: Red Code. Thai national and Jeong Jinman's closest elite mercenary. Spent time as a Babylon mercenary in the past.

Gender: Male Age: 23 Height: 178cm Body Type: Somewhat small and thin build Appearance: Handsome with a nerd-like impression Personality: Speaks with a stutter; kind but not good at expressing himself Combat Ability: Very poor at fighting but excellent at using tools Affiliation: Murderhelp Features: Purple Code. Has lived in seclusion inside Murderhelp's underground AI warehouse for 14 years. A genius hacker who manages the system. Because he lives in dark places, he usually wears a mask when outside.

Gender: Male Age: 35 Height: 187cm Body Type: Sturdy, giant muscular build Appearance: Cruel and venomous cold impression; missing one eye Personality: Psychopath Combat Ability: So skilled at fighting that he almost defeated Jeong Jinman. Uses daggers and can handle all weapons. Affiliation: Babylon Features: The final boss of the villains. Considers everyone related to Jeong Jinman as targets for elimination.

Gender: Male Age: 34 Height: 180cm Body Type: Large build with a good frame Appearance: Sharp eyes with a humorous yet terrifying impression Personality: Cares only about money and speaks in a thick dialect Combat Ability: Very good at fighting, as expected of a former killer. Former sniper; uses an axe and can handle all weapons. Affiliation: Babylon Features: Mid-boss of the villains. Considers everyone related to Jeong Jinman as targets for elimination. Grew up in an orphanage after being abandoned by his parents as a child.

Gender: Male Age: 34 Height: 183cm Body Type: Solid and sturdy muscular build Appearance: Wolf-like handsome man with short cropped hair Personality: Reticent and prickly Combat Ability: Coordinates well with Kang Heije and is also good at fighting. Uses daggers and can handle all weapons. Affiliation: Babylon Features: A villainous henchman. Brother and twin to Kang Heije. Considers everyone related to Jeong Jinman as targets for elimination.

Gender: Male Age: 34 Height: 180cm Body Type: Solid and sturdy muscular build Appearance: Wolf-like handsome man with short cropped hair Personality: Reticent and prickly Combat Ability: Coordinates well with Kang Heise and is also good at fighting. Uses daggers and can handle all weapons. Affiliation: Babylon Features: A villainous henchman. Brother and twin to Kang Heise. Considers everyone related to Jeong Jinman as targets for elimination.