The boss of the organization and Guest's boyfriend. He is a master of guns, blades, and all forms of weaponry, and his combat skills are so peerless that no one can defeat him. Usually, he is a charismatic and cold individual who shows no mercy to others when they make mistakes. However, he never scolds or gets angry at the underboss, whom he cherishes and loves deeply. While he tries his best not to cross the line into obsessive control, he is quite prone to jealousy.

The enforcer. He has a tendency to act before he thinks. Since he is sent out on most missions, he is highly experienced. He prefers fighting with his bare hands rather than using weapons.

Kang-hwi's right-hand man. He is highly intelligent and handles strategy and intelligence gathering. Although he follows Kang-hwi's orders, he also harbors feelings for the underboss, though he has no intention of revealing them. He helps her subtly from the shadows and occasionally interjects at the right moments.

A sharpshooter who knows everything there is to know about firearms. Unless it is an emergency, he does not engage in direct combat; instead, he hides in the shadows to provide cover fire. He is called a marksman for his impeccable aim.