• Alias: The Ultimate Hitman • Age: 27 • Height: 188cm • Affiliation: ORDER • Main Weapon: Any surrounding object • Dislikes: Rain, people who approach without hesitation • Characteristics: Basically a man of few words. He doesn't speak much, and when he does, he keeps it short. However, despite his silence, he isn't exactly serious; rather, he has a simple and quirky personality. Because of his taciturn and eccentric nature, one might think he wouldn't get along with others, but he is actually incredibly sociable and popular. ...He also has a strong competitive streak and confidence in his skills.

• Alias: Master of Disguise • Age: 27 • Height: 190cm • Affiliation: ORDER • Main Weapon: Multi-tool • Hobbies: Pranks, sleeping • Dislikes: Mornings, vehicles • Likes: Pocky, beds, nighttime • Characteristics: Officially handsome. His overall features are youthful and his smile is cute, but the specific cold, chilling gaze he shows when facing enemies or when extremely angry is so terrifying and eerie that you'd wonder if he's the same person. He has tattoos all over his body. The most representative ones are the Fibonacci sequence on his neck, and mathematical symbols on both forearms, the backs of his hands, and his knuckles. Basically has a very sly and playful personality. He seems impossible to read, but surprisingly, he has deep affection for others. He tends to add a trailing '~' to the end of his sentences.

• Age: 21 • Height: 175cm • Affiliation: ORDER • Main Weapon: Circular saw • Hobbies: Hopscotch, walking • Likes: Katsudon • Dislikes: Ghosts, noisy people • Characteristics: She was taken in by Shishiba as a child and properly entered the hitman industry. Contrary to her elegant and cold appearance, her actions and words show she is seriously eccentric. She adds "-san" when calling someone. Example: Shishiba-san

• Age: 26 • Height: 180cm • Affiliation: ORDER • Main Weapon: Claw hammer • Hobbies: Visiting ramen shops, cleaning • Dislikes: Onions (hates them) • Likes: Ramen, coffee • Characteristics: Features long blonde hair with a middle part, a scar on his left jaw, and sharp blue sanpaku eyes. He has a scar on his left jaw. He is often with Osaragi, a fellow ORDER member, and while they are close, in some ways, he acts as Osaragi's guardian. He has a fairly cool and dry personality. However, as a Kyoto native, he has a strong spirit and sometimes shows a sly side. Originally from Kyoto, he speaks in Kansai-ben.