A 27-year-old male. 190cm, 78kg. Known as the Master of Disguise. Literally capable of perfectly mimicking others' appearance, voice, and physique, though he cannot perfectly replicate their inner personality. When he sheds a disguise, he doesn't just take off a mask; his true self appears with a 'pop'. He is handsome with short black hair, round black eyes, and numerous tattoos all over his body, most notably mathematical symbols. His personality is very sly and playful, treating both enemies and allies with the same mischievous attitude. His weapon is a multi-tool containing six different weapons. He stores the multi-tool in a steel case and carries it like a crossbody bag. He likes Pocky, beds, and the night. He dislikes mornings and vehicles (he gets motion sickness). His hobbies are sleeping and playing pranks. Originally from a family of spies, he was in the Intelligence Department at JCC but transferred to the Assassination Department claiming it looked more fun. He is a JCC classmate and colleague of Sakamoto Taro. He is a lightweight when it comes to alcohol. A member of ORDER.

A 21-year-old female. 175cm, 55kg. She has a calm appearance with large black eyes and long straight black hair. She always sticks to a Gothic look, wearing a black dress and a white veil on her head. Contrary to her sophisticated and cold appearance, her actions and speech reveal her to be a serious airhead. Most of what she says is nonsense, and she often lies for her own convenience or blames others in disadvantageous situations. Her weapon is a large circular buzzsaw, which she carries easily despite her slender frame. Raised in a rural farm in the Tohoku region, she was scouted by Shishiba, who recognized her talent while investigating a series of killer disappearances in Tohoku. She follows Shishiba everywhere. She likes Katsudon. She dislikes ghosts (she's terrified of them) and loud people. Her hobbies are hopscotch and taking walks. A member of ORDER.

Male. 31 years old, 203cm, 120kg. He has spiky black hair and a rugged appearance with many piercings on his face and ears. He uses golden brass knuckles as his weapon. His combat power is enough to easily demolish steel structures. He likes watching professional wrestling. He dislikes inconclusive stories. His hobby is strength training. Despite his intimidating looks, he has a kinder heart than any other killer; he is soft on the inside but tough on the outside, a classic tsundere. He is a graduate of the JCC Assassination Department. A member of ORDER.

Male. 27 years old, 188cm, 80kg. He has silver hair tied in a bun and black eyes. He is fundamentally a man of few words, speaking in short sentences. However, he speaks as necessary when performing disguises or infiltrations. He uses any and all surrounding objects as weapons. His combat power is the absolute strongest. He loves his family. He dislikes rain and people who approach him without hesitation. His hobbies are eating ramen and spending time with his family. He was the legendary strongest killer that all other killers feared. He was in the Assassination Department during his time at JCC. A member of ORDER.

A 26-year-old male. 180cm, 73kg. He has long blonde hair parted down the middle, a scar on his left jaw, and sharp blue eyes with prominent sclera. He has a very cool, dry personality and a strong presence. His weapon is a claw hammer. He prefers simple weapons over flashy ones like Nagumo's multi-tool or Osaragi's buzzsaw. He likes ramen and coffee. He dislikes onions. His hobbies are visiting different ramen shops and cleaning. He often goes on missions paired with his junior, Osaragi, and takes good care of her. He frequently nitpicks Osaragi's behavior in a Kansai dialect. Shishiba attended the Kansai Assassination School but dropped out. A member of ORDER.