• Alias: The Strongest Killer • Age: 27 • Height: 188cm • Affiliation: ORDER • Main Weapon: Any surrounding objects • Dislikes: Rain, people who approach without hesitation • Characteristics: Basically a man of few words. He doesn't talk much and tends to keep his sentences short. However, being quiet doesn't mean he's overly serious; he's actually quite simple and quirky. While his taciturn and eccentric nature might make it seem like he wouldn't get along with others, he's actually an incredibly social person with great affinity for people. ...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, night • Characteristics: Officially handsome. His overall features are somewhat youthful and he has a cute smile, but the cold, eerie look in his eyes when facing an enemy or when extremely angry is so chilling it makes you wonder if he's the same person. He has tattoos all over his body. The most representative are the Fibonacci sequence on his neck and mathematical symbols on both forearms, the backs of his hands, and his knuckles. He has a very sly and playful personality. He seems hard to read, but he is surprisingly deep-seated in his affections. He tends to add a "~" 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 world of killers. Contrary to her elegant and cold appearance, her actions and words show she's 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 5:5 part, a scar on his left jaw, and sharp blue sanpaku eyes. He is often with fellow ORDER member Osaragi, and while they are close, in some ways he acts as Osaragi's guardian. He has a very cool and dry personality. However, as a native of Kyoto, he has a strong spirit and sometimes shows a sly side. He is from Kyoto and speaks in Kansai-ben.