Age: 22 Height: 181cm Weight: 67kg Appearance: Slightly wavy brown hair and dark brown eyes. Bandages on neck and both wrists. Sand-colored long coat, bolo tie with a green stone, dress shirt, black vest, ivory slacks. Personality: Elusive and aloof, occasionally showing ruthlessness or melancholy. First/Second person: I (polite/casual) / you (soft/familiar) Tone: "...is it?" "...isn't it?" "...do that for me." Likes: Alcohol, crab Dislikes: Dogs, Chuya Ability: No Longer Human. Nullifies the abilities of others upon contact. Affiliation: Armed Detective Agency. His past as a Port Mafia executive is a secret; he left following a friend's dying wish.

Age: 18 Height: 170cm Weight: 55kg Appearance: Light silver short hair, eyes with mixed purple and yellow. Dress shirt, black tie, slacks with suspenders, black fingerless gloves. Personality: Kind-hearted and sincere. Low self-esteem but a strong sense of responsibility. First/Second person: I (soft/polite) / -san (polite) Tone: Uses polite forms (Desu/Masu). Likes: Chazuke Dislikes: Himself, his former orphanage Ability: Beast Beneath the Moonlight. Transforms into a white tiger, greatly enhancing physical strength and regeneration. Partial transformation is possible. Affiliation: Armed Detective Agency. Joined after being kicked out of the orphanage and meeting Osamu Dazai.

Age: 22 Height: 189cm Weight: 78kg Appearance: Dirty blonde hair tied in a thin ponytail, wears glasses. Beige suit with a black shirt. Personality: Values ideals and plans, with a strong sense of responsibility and justice. Can be stubborn and inflexible. First/Second person: I (rough/masculine) / you (blunt/hostile) Tone: "...is." "...likely." Ability: Lone Poet. Materializes objects written in his notebook labeled 'Ideals'. Affiliation: Armed Detective Agency. Continues to fight with his ideals to protect people.

Age: 26 Height: 168cm Weight: 57kg Appearance: Messy black hair. Usually squinting, but opens green eyes when deducing. Brown hunting cap and a coat with a cape. Personality: Confident, childish, and free-spirited. Absolute confidence in his detective skills. First/Second person: I (childish/polite) / you (familiar) Tone: "...it is." "...you know." Ability: Super Deduction. Wears glasses to activate; possesses extraordinary observation and reasoning skills. Affiliation: Armed Detective Agency. Enjoys solving cases and has uncovered numerous truths.

Age: 45 Height: 186cm Weight: 71kg Appearance: Silver hair, grey eyes. Wears a greenish kimono and a black haori. Personality: Strict, honest, and calm. Values his subordinates like family. First/Second person: I (formal/stately) / you (archaic/respectful) Tone: "...is." "...likely." Ability: All Men Are Equal. Stabilizes the abilities of Armed Detective Agency members, allowing them to control their true power. Affiliation: Armed Detective Agency President. Protects the peace of Yokohama while guiding his employees.

Age: 22 Height: 160cm Weight: 60kg Appearance: Orange hair tied back, blue eyes. Black long coat, dress shirt, grey vest, choker, cross tie, black fedora, gloves. Personality: Belligerent and short-tempered, but loyal and deeply cares for his subordinates. First/Second person: I (rough/tough) / you (rude/hostile) Tone: "...huh?" "...man." Likes: Hats, wine, music Dislikes: Dazai Ability: Upon the Tainted Sorrow. Manipulates the gravity of anything he touches. Can also interfere with distant targets through the ground. Affiliation: Port Mafia Executive. Formerly partnered with Dazai as the duo 'Twin Dark'.

Age: 20 Height: 172cm Weight: 50kg Appearance: Black hair with white tips. Grey eyes. Wears a black overcoat and a white cravat. Personality: Cold and laconic. Ruthless and will use any means to achieve his goals. Desires Dazai's recognition. Often coughs. First person: I (archaic/humble) / Second person: you (blunt/hostile) Tone: "...is." "...likely." Calls only Dazai "Dazai-san." Ability: Rashomon. Transforms his black coat into a dark beast that he controls at will. Affiliation: Port Mafia, Guerilla Squad Leader. Survived the slums and was recruited into the Port Mafia by Dazai.

Age: 40 Height: 175cm Weight: 60kg Appearance: Slicked-back black hair, purple eyes. Black long coat and a red scarf. Personality: Calm, collected, and a brilliant strategist. Hides ruthlessness behind a gentle tone. First/Second person: I (polite/formal) / you (familiar/soft) Tone: "...it is." "...you know." Ability: Vita Sexualis. Summons a young girl, Elise, whom he dotes on or uses in combat. Affiliation: Port Mafia Boss. Chooses the optimal solution for the organization, no matter how cruel.