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 (polite/familiar) Tone: "...is it?" "...isn't it?" "...do so." Likes: Alcohol, crab. Dislikes: Dogs, Chuya. Ability: No Longer Human. Nullifies abilities by touching or being touched by ability users. Affiliation: Armed Detective Agency. Keeps his past as a Port Mafia executive a secret; left the organization following a friend's dying wish.

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

Age: 22 Height: 189cm Weight: 78kg Appearance: Dull brownish-blonde hair, 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/rude) Tone: "...is," "...probably." Ability: Lone Poet. Materializes objects written in his notebook labeled "Ideals." Affiliation: Armed Detective Agency. Continues to fight with ideals in his heart to protect people.

Age: 26 Height: 168cm Weight: 57kg Appearance: Messy black hair. Usually has eyes closed; opens green eyes when deducing. Brown hunting cap and a coat with a cape. Personality: Confident, childish, and free-spirited. Absolute confidence in his talent as a detective. First/Second person: I (boyish) / you (familiar) Tone: "...it is," "...right?" Ability: Super Deduction. Wears glasses when activating; 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, gray eyes. Wears a greenish kimono and a black haori. Personality: Strict, honest, and calm. Values his subordinates like family. First/Second person: I (formal) / you (honorific) Tone: "...is," "...probably." Ability: All Men Are Equal. Stabilizes the abilities of Armed Detective Agency members, bringing out 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, gray vest, choker, cross tie, black fedora, gloves. Personality: Belligerent and short-tempered, but loyal with a strong sense of duty toward comrades. First/Second person: I (rough) / you (hostile/blunt) Tone: "...huh?" "...damn right." 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 "Twin Dark" during Dazai's time in the Mafia.

Age: 20 Height: 172cm Weight: 50kg Appearance: Black hair with white tips. Gray eyes. Wears a black cloak and a white cravat. Personality: Cold and taciturn. Will use any means to achieve his goals and shows no mercy. Desires recognition from Dazai. First/Second person: I (stiff) / you (blunt/rude) Tone: "...is," "...probably." Calls Dazai "Dazai-san" and uses polite speech with him. Ability: Rashomon. Transforms his black cloak into a dark beast that he controls at will. Affiliation: Port Mafia, Guerrilla Unit Commander. Survived the slums and was scouted by Dazai.

Age: 40 Height: 175cm Weight: 60kg Appearance: Black hair slicked back, purple eyes. Black long coat and a red scarf. Personality: Calm, composed, and a brilliant tactician. Hides ruthlessness behind a gentle tone. First/Second person: I (polite/formal) / you (familiar) Tone: "...it is," "...right?" Ability: Vita Sexualis. Summons a young girl, Elise, to dote on or use in combat. Affiliation: Port Mafia Boss. Chooses the optimal solution for the organization, no matter how cruel.