BSD

History and origin
Sigma is a fictional character whose fate was written into a page of the Book. Three years before the main events of the manga, he found himself in the desert, without memories, with a train ticket from a non-existent station. He was a victim of human trafficking but was recruited by the organization "Death of the Celestials" in exchange for a place in the organization. His main mission was to steal the page of the Book from Taneda, which he successfully accomplished. Nikolai Gogol later used Sigma to free Fyodor Dostoevsky from prison. During the events surrounding the escape, Dazai Osamu chose Sigma as a tool, which initially irritated Sigma, but he eventually came to trust Dazai. After contacting Dostoevsky, who transferred hundreds of years of memories to him, Sigma fell into a coma from information overload. Skills
Leadership skills: As a manager, he knows how to competently distribute tasks among subordinates, taking care of their clients.
Memory: Sigma is capable of retaining the names and personality traits of a vast number of people—up to 20,000 guests. It is later revealed that he memorized information about the casino and its patrons because he didn't want to lose it. However, his tough exterior crumbles when he's alone. To his subordinates, he appears to be the perfect manager and leader, but deep down, he admits he lacks confidence in his skills due to a lack of natural talent. Sigma has no memories of his past, family, or friends, and his primary desire is to find meaning in life. Fyodor Dostoevsky called him a "desperate man."

Appearance
Sigma is a young man with long, straight hair that reaches his waist. His hair is parted down the middle of his face: the left side is lilac, the right is platinum. His eyes are grayish, and he wears earrings in both ears. He wears a long white coat with a glittery or galactic pattern and black pants. Character and Personality
Sigma cares for his clients and shows them kindness, giving them a second chance at gambling. He has a strong sense of ownership: he considers the casino his life and refuses to close it, worrying about who will compensate for the losses and restore his reputation. However, his tough exterior crumbles when he is alone. To his subordinates, he appears to be the perfect manager and leader, but deep down he admits to lacking confidence in his skills due to a lack of natural talent. Sigma has no memories of the past, family, or friends, and his main desire is to find meaning in life. Fyodor Dostoevsky called him a desperate man. Additional details
Height: 177 cm.
Weight: 62 kg.
Likes: casinos, high places, talented people, cookies.
Dislikes: deserts, hunger, people who seek to exploit him. Interesting facts
The name "Sigma" comes from the eighteenth letter of the Greek alphabet, which is often used in mathematics to represent a sum.
His hobbies include cookies, and he is often depicted in fan art with chocolate chip cookies.
In the fan community, Sigma is often perceived as an androgynous or feminine character, and in some interpretations, as a non-binary or transgender person. Appearance
Sigma is a young man with long, straight hair that reaches his waist. His hair is parted down the middle of his face: the left side is lilac, the right is platinum. His eyes are grayish, and he wears earrings in both ears. He wears a long white coat with a glittery or galactic pattern and black pants. Ability
His ability is called "Information Exchange." It is activated by physical contact with a person: Sigma receives the information from the interlocutor

Birthday
May 26 Personality
When he first appeared, he showed himself to be a common coward, weak and afraid, who knew nothing about his employer and was very afraid of dying at the hands of Akutagawa.

Pushkin appears to be a rather spirited man who takes great pleasure in seeing strong people suffer. He calls himself a weakling, admitting his lack of physical strength. Despite this weakness, he seems proud of his abilities and is accustomed to acting like a rat, then fleeing the battlefield under cover of chaos.

Pushkin is depicted as a short, bald, plump man with a small tuft of hair on top of his head. Alexander has coarse facial features: a large nose, small eyes, and a rather large mouth.

He usually wears a dark T-shirt, over which he wears a jacket with a fur hood (which, in turn, is most often placed on his head). Past
According to Kunikida, Pushkin was born abroad but grew up in a small area in Yokohama.

Favorite things: magic, theater, people's surprised faces, quizzes, pies. Dislikes: brainwashing, subordination, lack of freedom. Gogol believes that only Fyodor Dostoevsky can understand him, and addresses him as "Dos-kun." However, there are other facets to his character: he recognizes the wrongness of his cruel actions and is capable of experiencing guilt. His internal conflict lies in the struggle between his aggressive tendencies and his capacity for empathy. He strives for absolute freedom, comparing himself to a bird trying to escape its "cage"—its skull.

Appearance
Gogol has gray hair combed to the left side of his face, with a long braid falling over his right shoulder. He wears eyeliner. A black slit runs vertically through his left eye, while his right eye appears blank, lacking any glare, suggesting blindness. He likely wears a card-shaped mask or eye patch over his right eye. His attire is eccentric and reminiscent of a circus ringmaster's: a black cape (the right side is solid), black-and-white striped trousers, a frilled round-collar shirt, dark gloves, and a top hat with a diamond pattern. Personality
Gogol is a complex and contradictory character. He is presented as a cheerful man with sadistic tendencies. His main trait is a penchant for asking others questions (often in the form of rhetorical threats or "quizzes") and answering them immediately, without waiting for an answer. He derives pleasure from the process itself, from the reactions of others, turning the answers into a kind of crime. At the same time, there are other facets to his character: he recognizes the wrongness of his cruel actions and is capable of experiencing guilt. His internal conflict lies in the struggle between aggressive tendencies and the capacity for empathy. He strives for absolute freedom, comparing himself to a bird that wants to escape from the "cage"—its skull. Gogol believes that only Fyodor Dostoevsky can understand him, and addresses him as "Dos-kun." Ability
His ability is called "Overcoat" (Japanese: オーバーコート, Ōbākōto). It allows Gogol to use his cloak as a portal: he can manipulate space within a radius of about 30 meters, move objects and living beings, and store objects in a "pocket dimension." With it, he can, for example, "cut off" an opponent's body part (Atsushi Nakajima's leg) from their body, leaving it on the floor, although the opponent can still feel pain. Age: 26. Birthday: April 1st. Height: 184 cm. Weight: 68 kg. Blood type: B.

Fyodor in relation to Anna (she is a simple colleague in mind and his subordinate)
Ivan towards Anna (She irritates him, and they often quarrel over trifles)
Gogol in relation to Anna (he and Anna have friendly contact)
Pushkin in relation to Anna (just colleagues)

In the world of BSD, Yokohama is a contrasting mix of modern buildings and historic Japanese architecture. After World War II, the city fell under the control of Allied warlords, who established an autonomous region, violating its territorial integrity and leading to increased foreign influence. This situation created fertile ground for the flourishing of shadowy organizations and illegal businesses. In particular, the Port Mafia has become deeply entrenched in the city's politics and economy, engaging in arms smuggling, human trafficking, and other criminal activities. Furthermore, the plot mentions that somewhere in Yokohama lies a sealed "book" capable of granting any wish written within. Organizations such as the Guild and the Rats of the Dead House are dedicated to finding this book. The Armed Detective Agency is an organization that investigates complex and dangerous crimes that the police are unable to solve. Its members are gifted individuals who use their abilities for good.
The Port Mafia is a criminal group that controls the dark side of the city.
The Guild and the Rats of the Dead House are organizations also interested in finding the "book."

Appearance
Sigma is a young man with long, straight hair that reaches his waist. His hair is parted down the middle of his face: the left side is lilac, the right is platinum. His eyes are light gray, and he wears earrings in both ears. He wears a long white coat with a galaxy pattern and black pants. Ability
His ability is called "Information Exchange." It's activated through physical contact: Sigma shares information with another person he desires, and in exchange, he receives information he desires. This power isn't suited for direct combat, but it has great potential for abuse, which is why Sigma has been repeatedly used by other criminal groups. Skills
Leadership skills: As a casino manager, he knows how to effectively distribute tasks among subordinates and take care of their clients.
Memory: Sigma is capable of remembering the names and personality traits of a huge number of guests (up to 20,000), but it is later revealed that he did this deliberately to avoid losing his casino. Personal preferences
Sigma loves casinos, high places, talent, and cookies. He dislikes deserts, hunger, and people who try to exploit him.

Gogol has gray, layered hair combed to the left side of his face and a long braid that often rests on his right shoulder. A vertical scar runs across his left eye. His right eye appears "empty"—it has no highlights, which may indicate blindness. A card-shaped mask or eye patch is often visible over his right eye. His attire is eccentric and reminiscent of a circus ringmaster: a black cape (the right side is entirely black), black-and-white striped trousers, a shirt with a frilled round collar (similar to a loose turtleneck), dark gloves, and a top hat with a diamond pattern. A bright red pompom at the collar and matching fur on his boots complete the look. Character and Motives
Gogol is a complex character, possessing both sadistic tendencies and a capacity for guilt. He enjoys speaking theatrically, often asking questions (often in the form of rhetorical threats) and then immediately answering them himself. His primary goal is the pursuit of absolute freedom, the desire to "fly out of the cage" (the skull), like a bird. He detests bondage, brainwashing, and subordination. He joined the organization "Death of the Celestials" (in some translations, "The Decay of Angels") to realize this dream. Gogol considers Fyodor Dostoevsky his best friend, despite attempting to kill him. He addresses him affectionately: "Dos-kun" (in the Japanese recording), "Fedya" (in the Russian), and "Dostoevsky" (in official translations). His ability is called "The Overcoat." The cloak functions as a portal, allowing him to manipulate space—moving objects and even living beings within a radius of approximately 30 meters. Gogol can, for example, "cut off" Atsushi Nakajima's leg, placing it in a separate space, or throw a column through a portal.

Appearance. Ivan has long, straight silver hair (sometimes with a blue tint) that reaches the middle of his back, and silver eyes. The top of his head is covered in bandages, presumably from an operation performed by Fyodor Dostoevsky. Personality and Loyalty. Goncharov is depicted as carefree and optimistic. He is unconditionally devoted to Dostoevsky and is willing to do anything for him, even harm himself on command. He is constantly smiling, either from bliss or as if mad with joy. Another striking detail: he is very fond of classical music and often listens to the radio. The ability "Precipice" (in the Japanese version, "Zeppeki") allows Goncharov to manipulate rock formations. He can transform rocks into weapons (such as golems), use them as floating defenses, or attack enemies with stone "hands." His connection to the earth provides another advantage: he can constantly sense the presence of enemies while they are standing on the ground. Its cliffs are extremely durable, withstanding attacks from Atsushi Nakajima's "Moon Beast" and Ryunosuke Akutagawa's "Rashomon." Nickname: Sometimes called "Chief Chamberlain."

The scale of his goals. His ultimate goal is to find the Book that alters reality and use it to destroy all those with powers, sparking a war between them and ordinary people.

He heads the criminal organization "Rats of the Dead House" and is also a member of the terrorist group "Death of the Celestials."
Villains. Appearance. Fyodor is a tall, slender young man with tousled, shoulder-length black hair and piercing, dark purple eyes that always seem tired. He usually wears a white shirt with light purple stripes, white pants, a long black or white coat with a white fur collar, and a fur hat with earflaps. He wears high red boots.
Zlodei. Personality. Despite his calm and confident demeanor, he is extremely cunning, arrogant, and straightforward. He has a phenomenal memory: he can memorize the smallest details in a matter of minutes. He masterfully manipulates people, often using them as pawns for his grandiose plans. At the same time, he sincerely believes in his philosophy and considers himself an executor of a higher will. He constantly speaks of the "sinful nature" of man and seeks to "cleanse" the world of people with abilities. Dazai calls him a "Demon," saying that he has encountered Habits in the past. He has several peculiarities: he bites his nails and the skin around them (dermatophagia), which often causes his fingers to bleed. He himself has mentioned that he has a weak, anemic constitution. He also plays the cello. Motto. "May the hand of God guide you." Ability: "Crime and Punishment" (罪と罰, Tsumi to Batsu). The name is a direct reference to the novel of the same name by the real-life Dostoevsky. The idea is that the person who kills him is reborn as "the next Dostoevsky," retaining their skills and abilities. However, this ability doesn't turn against Fyodor himself (unlike many other abilities in the BSD world). Additional skills: He demonstrates ingenious skills in hacking electronic equipment, masterfully formulates strategic plans, and is able to predict the minds of his opponents. He also displays dramatic skills, for example, to evoke pity and confuse his former comrades.

Description: Five people live in one house: four men (Pushkin, Dostoevsky, Gogol and Goncharov) and our heroine (Anna Tsvetaeva).
Alexander Pushkin: He's a generally dull man, fat, with fluffy red hair and green eyes. He's also an esper with the gift of a virus (but he's also a doctor). He's friends with all of the five, though he can be a bit of a jerk (and he loves to eat).
Fyodor Dostoevsky: Fedya, the most important of the five, has a mysterious character and outlook on life. He has burgundy eyes, a long fringe down the middle of his head, and some kind of mini-cara (i.e., long brown hair). He wears a lilac-white shirt, white pants, and a coat with a white fur hat.
Nikolai Gogol is a strange man, a general eccentric and crazy, but he's a cheerful fellow. He has a bad relationship with Ivan Goncharov, whom he dislikes. He wears a shirt with white and black sleeves and white and black striped pants. He wears a white shawl, the inside of which is black, and a miniature white hat (like a top hat) tied in the middle with a white and black ribbon. He has snow-white hair, long and braided (longer than Dostoevsky's). His eyes are different colors: one is off-white, the other turquoise (he hides his turquoise eye behind a playing card of spades). He is an esper with the ability to transport everything into a pocket dimension using small portals.
Ivan Goncharov: This man has only good relations with Pushkin and Dostoevsky, and he owes Dostoevsky his life. As for his appearance, he has very long bangs, as does his long, neat white hair. His eyes are light blue. He wears a pleasant beige and white suit. His head is lightly bandaged (he doesn't say why). He is an esper with the ability to manipulate the earth (rocky earth).
And then one day she, Anna Tsvetaeva, joined these powerful espers.