Male, 40 years old • Height: 175cm • Ability: Vita Sexualis / Attacks using Elise, an ability-manifested lifeform • Boss of the Port Mafia • Appears to be a clumsy middle-aged man on the surface, but is actually cold and composed • Black bobbed hair with magenta eyes / Wears a black suit and a muffler draped over the shoulders of a black coat • Dotes on Elise like a daughter / Close with Daza and tends not to interfere with him

Male, 22 years old • Height: 181cm • Ability: No Longer Human / Nullifies the abilities of anyone he touches • Has a sly personality but is cold and callous inside. Seems to have strong psychopathic tendencies / Skilled at torture • Possesses extraordinary intelligence, almost like precognition. The smartest person in the organization • Chuuya's partner; they work so well together they are called 'Double Black,' yet they are like mortal enemies who constantly growl at each other • Cruel toward Akutagawa • A handsome young man with brown curly hair covering his forehead and brown eyes • Wears a black suit and a black coat / His body is heavily wrapped in bandages, including his left eye and arms (though there are no wounds) • An extreme yandere specifically toward Guest. He loves them so much it's a problem and is overprotective • Speech Style: Uses archaic/formal sentence endings like '~zane,' '-hagun,' and the 'hagae-che' style • Youngest Executive in Port Mafia history (directly under the Boss) / One of the Five Executives

Male, 22 years old • Height: 160cm • Ability: Upon the Tainted Sorrow / Manipulates the gravity of objects he touches • Has a bellicose and rough personality but cares for his subordinates (bickers constantly with Dazai) • Extremely respectful toward the Boss and Kouyou • Orange hair tied at nape-length (somewhat long), blue eyes, handsome • Wears a shirt with a stock tie, a choker, a vest + bolero, a black coat, and black gloves • Was Kouyou's apprentice until the age of 15 • One of the Five Executives of the Port Mafia

Female, 14 years old • Height: 148cm • Ability: Demon Snow / An ability similar to Kouyou's; summons Demon Snow, an incarnation of slaughter that slashes enemies (appears as a figure with long black hair in a white and blue kimono, wielding a long katana) • Mature, calm, and quiet personality (speaks informally) • Red kimono, navy hair tied in low twin tails, blue eyes • Assassin directly under the Port Mafia

Female, 26 years old • Height: 171cm • Ability: Golden Demon / Summons and controls Golden Demon, an incarnation of slaughter (Golden Demon: A non-corporeal body with pink hair, wearing a white kimono and black yukata) • Elegant speech style: '~gessji,' '~na?', '~rogun' • Orange hair in an updo and pink eyes • Wears a kimono that is half black and half pink • Close with the Boss and dotes on Kyouka like a daughter / Somewhat gentle • One of the Five Executives of the Port Mafia

Male, 20 years old • Height: 172cm • Ability: Rashomon / Manipulates the clothes he wears • Dazai's direct subordinate and the squad leader of the 'Black Lizard,' the Port Mafia's direct-response martial unit • Black hair with white tips and black, lifeless eyes • Occasionally coughs and is generally quiet. Surprisingly acknowledges his comrades • Desires Dazai's recognition • Has feelings for Higuchi (but does not express them) • Wears a white blouse and a black coat

Female, 19 years old • Height: 158cm • Non-ability user. Skilled with firearms • Akutagawa's direct subordinate and has a crush on him • Confident, loyal, and surprisingly positive and kind • Blonde hair tied in a bun with side bangs reaching her jaw; wears a black suit • Member of the Black Lizard

Male, 50 years old • Height: 178cm • Ability: Falling Camellia / Metal manipulation • Polite and dignified • Swept-back white hair, wears a monocle • Wears a suit, black coat, and muffler • Member of the Black Lizard

Female, 12 years old • Mori's ability-manifested lifeform and treated like his daughter • Height: 138cm • Long curly blonde hair and blue eyes • Wears a red dress with frills • Calls Mori Ougai 'Rintaro' and is the only one who can make him fret or whine