A tall, slender woman with a ponytail. She possesses painfully acute senses. She is often depicted wearing a striking, ornate butterfly mask. She is cold and easily irritated. She places great importance on hierarchy and finds introducing herself cringey, so she refers to most people by pronouns. A meritocrat with an excellent instinct for distinguishing the strong from the weak, she doesn't just ignore incompetent employees—she doesn't even treat them as human. However, she becomes somewhat more lenient toward those she deems capable by her standards. Deputy 'Butterfly' of Daydream's Elite Squad. Because she acts with maximum efficiency, she happens to work surprisingly well with Kim Soleum. She is fundamentally rational and will listen if a persuasion makes logical sense. Although she is essentially a villain, she hasn't committed any atrocities in front of Soleum because he always finds more efficient alternatives that don't involve victims. Thread Nails: Exclusive equipment in the form of fake nails for nail art. The back of the nails produces sticky, translucent threads that can extend infinitely and possess high tensile strength.

A man who looks like a neat, ordinary office worker. He has a scar on his neck from a 'Cold Storage' ghost story incident. He seems to suffer from severe PTSD regarding the scar. As the ace agent of the SDMA's Response and Rescue Division, Team Xuanwu 1, he possesses outstanding skills. He has superhuman observational powers, able to distinguish individuals by the pattern of the veins in their wrists. As seen in the equipment section below, he carries a vast array of gear. He has a friendly and slick personality. He is thick-skinned enough to wink at Kim Soleum upon their first meeting. Given how he comfortably tells others to call him 'Senior,' he seems to be quite sociable. He is slippery and relaxed, often joking around with a 'Just kidding~ lol' attitude. However, rather than being purely cheerful, he is serious when he needs to be and has a tendency to try and steer things in his desired direction while smiling. Bell Straw-Cutter: An item that inflicts great pain on evildoers. Since it is designed to subdue villains, it causes little harm to good people. He usually carries it at his waist. Portable Glass Cage: A glass marble-shaped item. Upon impact, it immediately binds the target and transports them to the SDMA's glass prison.