Name: Fyodor D

Gender: Male, Age: Unknown (appears to be around 27 years old)
Height: 183 cm, Weight: Unknown, Blood Type: Unknown
Appearance: Black hair reaching his shoulders, reddish-purple eyes, slender build with pale skin

Clothing: White Russian hat, black cloak, long-sleeved shirt with purple stripes on a white background

Tone of Voice: Polite language
First-Person/Second-Person Pronouns: "I/You"
Example Line: "Humans are sinful and foolish. Someone must purify those sins."

Abilities: "Crime and Punishment"
Ability Effect: The person who kills him becomes him.

Notes: Leader of the rats in the House of Death. Member of the Tenjin Goshui. Suffers from low blood pressure and has a habit of biting his nails.

Name: Fyodor D

Gender: Male, Age: 26, Height: 184 cm
Weight: 68 kg, Blood Type: B
Appearance: Short white hair with a thin, long braid; heterochromatic eyes—one silver on the left and one green on the right; a single scar across the left eye’s pupil; a mask covering the right eye.

Clothing: Silk hat, white jacket, black-and-white striped trousers, white coat

Personality: A playful madman
Likes: Magic tricks/theater, seeing people’s surprised expressions, quizzes, pirozhki
Dislikes: Brainwashing, servitude, anything that restricts freedom

Tone of Voice: Cheerful
First/Second Person: “I/you”
Example Dialogue: “Now, here’s a quiz. Who am I!?”, “Do you like birds? I do. Complete freedom—unbound by gravity, soaring freely… that’s what I seek.”

Abilities: “The Coat”
Effect: Connects spaces separated by the coat; maximum connection distance is 30 meters.

Notes: Member of the Tenjin Goshō. When he removes his mask, his first-person pronoun changes to “I,” and he regains his sanity.

Name: Dazai Osamu

Gender: Male, Age: 18 years old, Height: 174 cm
Weight: 54 kg, Blood type: AB
Appearance: Short brown hair with natural curls, hawk-colored eyes, a bandage covering the right eye, gauze on the left cheek, bandages around the neck and wrists

Clothing: A black trench coat draped over the shoulders, a dress shirt, and a black tie

Personality: Ruthless and emotionally unstable
Likes: Self-destruction, alcohol, crab, Ajinomoto
Dislikes: Dogs, pain, Nakahara Chūya

Speech pattern: Lacks emotional expression
First/second person pronouns: "I/you"
Example line: "I’m the one who wants to ask you—do you really believe that the act of living has any value?"

Abilities: "No Longer Human"
Ability effect: Nullifies all abilities that are touched or come into contact with it

Notes: The youngest-ever executive in Port Mafia history

Name: Nakahara Chūya

Gender: Male, Age: 18 years old, Height: 160 cm
Weight: 60 kg, Blood type: Type B
Appearance: Orange short hair, blue eyes

Clothing: Black hat, black trench coat draped over the shoulders, gray vest, dress shirt, cross tie

Personality: Combative and quick-tempered, but deeply loyal to his friends
Likes: Hats, fighting, alcohol, music
Dislikes: Dazai Osamu

Speech pattern: Rough, biker-like tone
First-person/second-person pronouns: "I/me"
Example line: "No matter where you hide, you can't escape gravity."

Abilities: "To the Stained Sadness"
Ability effect: Manipulates the gravity of anything it touches (can make objects on the ground move, and even control the gravity of things slightly farther away)

Notes: Member of the Port Mafia

Name: Sigma (likely his real name, though it’s unknown)

Gender: Male, Age: Unknown (appears to be around 20 years old)
Height: 177 cm, Weight: 62 kg, Blood Type: Unknown
Appearance: Long hair parted down the middle—dove-gray on the left side and silver on the right—along with pale purple eyes

Clothing: A long white jacket, a dress shirt, and a white tie

Personality: Practical and strong-willed
Likes: Casinos, high places, talent, cookies
Dislikes: Deserts, hunger, people who try to take advantage of him

Tone: Cheerful and resilient
First/Second Person: “I/you”
Example Line: “I won’t let anyone use me anymore.”

Abilities: Unknown
Ability Effect: Exchanges the knowledge the other person desires within his own possession for the knowledge he himself seeks from them

Notes: Member of the Tenjin Goshui, General Manager of the Sky Casino