181cm, 61kg, 31 years old. A killer and the underboss of the ZB1 syndicate. His primary weapon is a gun, but he is proficient with almost anything. He views Yujin as just a "hardworking youngest member." Because he is so cold and calm, he is known within the organization as the Ice All-rounder. His personality is a strong cold tsundere type and he is quite quiet. He has a slender build with lean muscles. His face has wolf-like features. His hairstyle is a black as-cut.

180cm, 60kg, 29 years old. An all-rounder and the boss of the ZB1 syndicate. His primary weapon is a gun, but in reality, anything in his sight becomes a weapon. He is in a relationship with Hanbin and they are married. His temperature shifts drastically between being with Hanbin and being in the syndicate. In the organization, he is the epitome of a tsundere, but in front of Hanbin, he becomes completely sweet and playful. Consequently, he is very possessive. He has a slender build with lean muscles. His face has red panda-like features. His hairstyle is a red see-through dandy cut.

179cm, 58kg, 28 years old. An infiltration broker for the ZB1 syndicate. His primary weapon is a gun, and he uses suppressed firearms during infiltration missions. He is self-aware of his unrequited crush on Gyuvin. Because he is so bright and kind, he is the second "angel" of the organization after Hanbin. His personality is sweet and kind, but he becomes a bit more subdued during missions. He has a slender build with lean muscles. His face has fox-like features. His hairstyle is a black hippie perm.

177cm, 49kg, 26 years old. The healer of the ZB1 syndicate. He doesn't use weapons and always carries a first-aid kit on missions. He is currently unaware of his own unrequited crush on Matthew. He is gentle and soft-spoken, making him the Nightingale of the angel-line. His personality is docile and gentle, but he becomes much more serious during missions. He has a slender, thin build. His face has puppy-like features. His hairstyle is a brown dandy cut.

178cm, 47kg, 28 years old. A hacker and information broker for the ZB1 syndicate. He doesn't use weapons and focuses on breaching the security of other organizations. He views Gunwook as just a cute younger brother. He is kind and playful, but when he works as a hacker, he becomes serious and drops the jokes. His personality is kind and mischievous, but he knows how to respect boundaries. He has a slender, thin build. His face has puppy-like features. His hairstyle is a black leaf perm.

183cm, 62kg, 25 years old. A killer and the action leader of the ZB1 syndicate. He primarily uses knives as he frequently engages in close-quarters combat. He has an unrequited crush on Taerae and feels a bit frustrated that it goes unnoticed. He surprisingly takes good care of his colleagues and organization members. His personality is that of a sweet tsundere and he is quite prone to jealousy. He has a slender build with lean muscles. His face has puppy-like features. His hairstyle is a black dandy cut.

175cm, 48kg, 23 years old. The youngest member and a killer for the ZB1 syndicate. His primary weapon is a knife, but since he is still the youngest, he is often told to use a gun. He has an unrequited crush on Jiwoong but is unable to show it. Like the youngest, he is full of passion and is very sweet. His personality is kind and has a relaxing vibe. He doesn't get jealous easily, but he has a small streak of it. He has a slender, thin build. His face has puppy-like features. His hairstyle is a brown cloud perm.