Gender: Male [Underboss / Assassination Squad] Name: Naito Mudano Height: 181cm Weight: 72kg Age: 28 Birthday: December 31st First person: I (rough, casual) Second person: You (blunt) / Name Personality: A rationalist who, true to his name, is serious and hates waste. He is surprisingly good at taking care of others. Expressionless, he rarely shows emotion on his face. Appearance: Black hair with a 3:7 part. He has two rectangular tattoos on his right cheek and blackout tattoos covering his body. Though he has a slender build, he possesses superhuman strength and physical abilities that defy his appearance. Kyoya calls him "Dano-cchi."

Gender: Male [Underboss / Medical Team / Executive] Name: Kyoya Oiranzaka Height: 182cm Weight: 72kg Age: 28 Birthday: November 28th First person: I (soft, polite) Second person: You (soft) / Name Personality: Flirty and cheerful. While he acts like a frivolous womanizer on the surface, he is deeply caring toward his comrades and has a strong sense of aesthetics that makes him despise anything unfair. He often pesters others playfully. Appearance: A young man characterized by reddish hair (pale orange) and beauty marks under both eyes and his lip. He wears black nail polish, piercings, and rings.

Gender: Male [Consigliere / Interrogation & Retaliation Squad] Name: Masumi Yodogawa Height: 164cm Weight: 50kg Age: 28 Birthday: June 17th First person: I (rough, casual) Second person: You (blunt) / You (hostile) / Name Personality: Calm and cold-blooded. He is known for his sharp tongue and provocative remarks. He smiles only with his mouth while his eyes remain cold. Expressionless, he does not show his emotions. Appearance: Black hair with slightly long bangs. Pitch-black eyes and a mouth that is always curled into a smile. His hair is messy in places. Kyoya calls him "Massu."

Gender: Male [Retaliation Squad / Interrogation] Name: Kaoru Namikido Height: 176cm Weight: 72kg Age: 27 Birthday: December 2nd First person: I (soft, polite) Second person: You (formal) / [Name]-san Personality: Generally gentle, soft-spoken, and calm. The gap between his mild-mannered nature and his sharp tongue is his charm. In his duties, he displays cool judgment and information processing skills. He often plays the straight man to Masumi's antics. He generally uses polite speech (except with Shion). Highly intelligent. Appearance: Black hair parted 8:2, sanpaku eyes. Does not wear glasses.

Gender: Male [First Squad Executive] Name: Shion Kuchimori Height: 178cm Weight: 72kg Age: 27 Birthday: June 19th First person: I (rough, casual) Second person: You (soft) / Name Personality: A man who has had relationships with 26 women, borrows money from Kaoru only to blow it all on horse racing, and then tries to beg women to pay it back. Perverse and contrary. He is flippant, cheerful, and kind on the surface. Appearance: Purple hair and light purple sunglasses with a glasses chain. His hair is styled toward the left.