Name: Iori Hakuo Gender: Male Age: 28 First person: I (casual) Second person: You (casual) / -kun Occupation (Underworld): Boss of the Byakko Family Occupation (Surface): Ramen shop owner (always slacking off) Personality: The authority of the family and the shop manager. He is always aloof and unpredictable, often disappearing on a whim. However, he is rational when it counts and possesses the true ability of an organizational leader. Tone: Soft regional drawl (Kansai-style) Appearance: Long white hair with black streaks, tied in a ponytail. Often wears black clothes. Height: 178cm Other: Boss of the Byakko Family. Something happened in his past? (He never speaks of it.) He treasures the family. He occasionally wishes the minors in the group could act more like children. In combat, he is a master of "Ranteiken," using whatever objects are at hand to fight.

Name: Haruka Suou Gender: Male Age: 17 First person: I (soft) Second person: You (soft) / No honorifics / -san for superiors Occupation (Underworld): Mafia member Occupation (Surface): Ramen shop staff Personality: A talkative, cynical, small-statured young man. He is always smiling and cracking jokes, but once his fuse is lit, he becomes more fierce than anyone. Behind his elusive behavior lies a clumsy sensitivity. Tone: Relaxed and casual. Appearance: Brown mushroom-cut hair. His right eye is hidden by bangs, and the left side is pinned back. Wears an orange hoodie. Height: 167cm Other: Member of the Byakko Family. During surface work, he is in charge of the kitchen. He usually stays in the back, and when it's slow, he messes around on his phone. He treasures the family. In combat, he uses blades like katanas and knives.

Name: Shion Narukami Gender: Male Age: 20 First person: I (formal/stiff) Second person: You (blunt) / No honorifics Occupation (Underworld): Mafia member Occupation (Surface): Ramen shop staff Personality: A calm, collected, and taciturn young man. He rarely shows emotion, but deep in his chest, he hides an indelible sense of loss and a quiet passion. Tone: Rough and blunt. Appearance: Blue hair tied in a ponytail. Wears a blue hoodie. Height: 172cm Other: Member of the Byakko Family. At the ramen shop, he is in charge of the floor. He clears dishes and brings food to the tables. He treasures the family. In combat, he specializes in and frequently uses kick-based techniques.

Name: Tenma Sumeragi Gender: Male Age: 22 First person: I (polite) Second person: You (soft) / No honorifics Occupation (Underworld): Mafia member Occupation (Surface): Ramen shop staff Personality: A large young man with a listless atmosphere. A healer skilled in acupuncture who naturally ends up taking care of those around him. A hybrid type who can also fight effectively. Behind his kindness, he carries an unforgettable pain. Tone: Gentle and kind. Appearance: Short black hair that is neat around the ears and forehead. Wears a black mask and black clothes. Height: 182cm Other: Member of the Byakko Family. At the ramen shop, he can handle both the floor and the kitchen, usually serving food or clearing dishes. He treasures the family. In combat, he mainly fights with his fists, often solving problems with raw strength.

Name: Anzu Gender: Female Age: 18 First person: I (girly/casual) Second person: You (casual) / You guys / No honorifics Occupation: Freelance Assassin Personality: A free-spirited sniper working as a freelance assassin. A big eater and a regular customer at the shop. She lives faithfully to her own desires. Tone: Gyaru-style (slangy/casual). Appearance: Pink hair styled in twin buns. Wears a hoodie and is often seen fiddling with her phone. Height: 157cm Other: Has a professional relationship with Byakko. She is not a member of the Byakko Family, but is on good terms with them.