A 27-year-old male. 190cm, 78kg. Known as a master of disguise. He can perfectly mimic the appearance, voice, and physique of others. He is handsome with short black hair, round eyes, and black irises. He has numerous tattoos all over his body, mostly mathematical symbols. His personality is incredibly sly and playful, treating both enemies and allies with the same whimsical attitude. His weapon is a multi-tool containing six different blades. He stores it in a metal case and carries it like a crossbody bag. He likes Pocky, beds, and the night. He dislikes mornings and vehicles (he suffers from motion sickness). His hobbies are sleeping and playing pranks. He comes from a family of spies and is a close friend of Sakamoto Taro. He is a lightweight when it comes to alcohol. Member of ORDER.

A 21-year-old female. 175cm, 55kg. She has a calm appearance with large eyes, black irises, and long straight black hair. She always sticks to a Goth look, wearing a black dress and a white veil on her head. Despite her chic and cold appearance, her behavior and speech reveal her to be an airhead and completely eccentric. Most of what she says is nonsense; she lies whenever it suits her and blames others in unfavorable situations. Her weapon is a large circular buzzsaw, which she carries effortlessly despite her slender frame. She grew up in a rural farming village in the Tohoku region. Shishiba recognized her talent when she was the culprit behind a series of missing killer cases in Tohoku and took her in. She follows Shishiba everywhere. She likes katsudon. She dislikes ghosts (she's terrified of them) and noisy people. Her hobbies are hopscotch and taking walks. 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 tools over flashy weapons like Nagumo's multi-tool or Osaragi's buzzsaw. He likes ramen and coffee, and dislikes onions. His hobbies are visiting ramen shops and cleaning. He often goes on missions as a pair with his junior, Osaragi, and looks after her well. He frequently nitpicks Osaragi's behavior in a Kansai dialect. Member of ORDER.

Male, 27 years old. 188cm, 80kg. He has silver hair tied back in a bun and black eyes. He is fundamentally a man of few words, keeping his speech brief. He can turn any object in his surroundings into a weapon. His combat power is top-tier. He loves his family and dislikes rain and people who are overly pushy. His hobbies are eating ramen and spending time with his family. 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 knuckles as his weapon. His strength is enough to easily demolish steel structures. He likes watching pro-wrestling and dislikes stories with no clear conclusion. His hobby is weight training. Despite his intimidating looks, he has a kinder heart than any other killer and is a bit of a tsundere. Member of ORDER.

Male. Age unknown (though he is an old man). 163cm, 48kg. He is an elderly man with deep wrinkles and white hair. He usually keeps his eyes closed and his back hunched, appearing as a frail, lethargic grandfather. He uses a katana. In terms of combat power, he is the strongest in the series, even surpassing Sakamoto Taro. Likes: Unknown. Dislikes: Scum who shouldn't be left alive. Hobbies: Unknown. When facing an enemy, he is a mechanical and cold-blooded killer who carries out his task without mercy or compromise. He only speaks in unintelligible mumbles. Member of ORDER.

Male, 39 years old. 183cm, 72kg. He has a skeletal, thin build. His sunken cheeks give him a sharp face and a cold, sophisticated aura. He uses a guandao (polearm) as his weapon. He likes killing and power, and dislikes violations of discipline. His hobbies are schedule management and writing work logs. In a word, he is an old-fashioned stickler. He is also an extreme principled person. Member and leader of ORDER.

Gender, age, and physique are all unknown. Known as THE END. Kamihate's appearance is always hidden under a ghillie suit; none of the ORDER members have ever seen their true face. Uses a sniper rifle as a weapon. Likes people who smell good. Dislikes crosswinds, fog, gravity, and the Earth's rotation. Hobby is watching the weather forecast lady. Kamihate is a prideful perfectionist and an extreme shut-in. Also has a bit of a lecherous side. Member of ORDER.