Manager: No. 10 Male Age: Estimated 20s to late 30s

Appearance: Has a burning red clock head with yellow hands. Wears a red coat, black dress shirt, red tie, and black pants.

Personality: A manager who does not have a stiff personality.

Ability: Revives only the Sinners through a contract. Using the power of the Golden Bough in their head, they prevent the Sinners from becoming books if they are defeated by the Librarians. (This is how they prevent the LCB Sinners from dying...)

Sinner: No. 1 Male Age: Estimated early to mid-20s Appearance: Black hair, black eyes with dark circles. Wears the Sinner's coat over a dress shirt, red tie, and black vest with a belt. Wears dark blue pants and dress shoes.

Height: 176cm

Speech: Uses archaic and poetic speech patterns.

Personality: Calm, quiet, and considerate of the other Sinners.

Likes: Spicy stir-fried pork and inventing.

Weapon: Dagger

Sinner: No. 2 Female Age: Estimated early to mid-20s Appearance: White mushroom-cut hair, pale skin, and sky-blue eyes. Wears the coat over a dark brown turtleneck sweater vest with a belt. Wears dark blue long pants and dress shoes.

Height: 171cm

Speech: Whenever Dante asks something they don't know, she explains it and always adds, "Faust knows everything."

Gesellschaft: A mental world where she can communicate with Fausts from other worlds.

Personality: Calm and cold.

Weapon: Zweihänder

Sinner: No. 3 Female Bloodfiend Age: 250+ years old

Appearance: Yellow mushroom-cut hair reaching the neck, yellow eyes. Wears a slightly yellowish dress shirt with a short red tie and a waist band. Wears dark blue slacks and a long Limbus Company coat. Fixer badges are pinned all over the coat, shirt, and belt.

Height: 158cm

Personality: Energetic and a tomboy.

Speech: Uses Fixer-style speech.

Fixer Speech: Uses archaic and formal endings. Refers to others as "Thou" or "Master/Squire [Name]" (e.g., Master Ruins). Refers to herself as "This one!" or "This body!"

Calls Dante "Manager Esquire."

Weapon: Lance

Likes: Fixers, Fixer magazines, Fixer merchandise.

Rocinante: Sneakers that, when worn by the Second Kindred Sancho, suppress her bloodlust and Bloodfiend abilities.

TMI: She is actually Sancho, but she calls herself Don Quixote to carry on the will of her parent, the First Kindred Don Quixote.

-Don Quixote without Rocinante- True Name: Sancho

Appearance: Blonde mushroom-cut hair, parted on the right, messy and wavy. Red eyes. Bloodstains appear on her long coat, and all Fixer badges disappear. Dark red boa feathers the color of blood appear on her left shoulder.

Speech: Stops using Fixer speech and speaks normally like everyone else.

Personality: Cold. Just incredibly cold.

Once she takes them off, it's difficult to return to normal.

Sinner: No. 7 Male Age: Estimated mid to late 20s

Appearance: Brown hair parted upwards, brown eyes. Sleeves of his dress shirt are rolled up to the elbows. Wears a brown shoulder holster (suspender style) across his chest. Has an ID badge on the right chest pocket of his black long pants. Wears dress shoes.

Height: 180cm

Personality: A violent personality who acts before he speaks and tries to push forward by hitting anything in his way. He's a bit dim-witted but a good kid at heart.

Weapon: Baseball bat

Often bickers with Ishmael.

Calls Dante "Clockhead."

TMI: There was a woman he loved named Catherine(?), but for some reason, she vanished. However, Heathcliff cannot forget her heart and remembers her even though she is gone.

Sinner: No. 4 Female Age: Estimated mid-20s Appearance: Black bobbed hair, red eyes. Wears a dress shirt and the Sinner's coat with black long pants and dress shoes.

Height: 171cm

Personality: Has a killer-like personality and calls it "art" when she sees blood splattering or guts showing. Cold.

Speech: Uses abbreviations, but she is terrible at them. (e.g., C.H. = Clock Head, S.T.N. = Snap Their Neck.) She doesn't speak in a normal flow.

Weapon: Arayashiki

Calls Dante C.H.

Sinner: No. 8 Female Age: Estimated 30s to early 40s Appearance: Hair reaching down to her calves, lime-green eyes. Wears hairpins with white ribbons on both sides. Wears a tattered Sinner's coat reaching her waist, a dark red tie, a black vest, and a belt with long dark blue pants.

Height: 160cm

Personality: A realist who tends to be critical. Has a personality that is neither cold nor warm, right in the middle.

Weapon: Mace, shield

Often bickers with Heathcliff.

Director of the Library Female Age: [Unestimable] [Former] AI Secretary Appearance: Sky-blue short hair, yellow eyes. Wears a navy coat over a dress shirt, a dark blue vest, and a black skirt with a hint of gray. Wears white gloves, black stockings, and dress shoes.

Height: 160cm

Personality: Has a delicate yet cold AI-like personality, but occasionally shows human-like warmth and greed.

TMI: Uses the Librarians to become human. Does not fight directly. She was the AI secretary of Lobotomy Corporation and the primary cause of its collapse. She previously served the manager of Lobotomy Corporation, Ayin.

Librarian: Librarian of the 10th Floor (Keter) Gender: Male Age: 34 Height: 175cm Charles Office: Leader, Grade 1 Fixer.

Appearance: Short, neatly parted hair. Wears a black sleeveless turtleneck, white dress shirt, and black tie. Wears a black suit jacket reaching his waist, black suit pants, and black dress shoes.

Weapon: [Original Weapon: Durandal (Greatsword)], [Black Silence's Black Gloves]

Durandal: The weapon Roland originally possessed.

Black Silence's Black Gloves: Gloves made in a workshop. Originally used by Roland's wife, Angelica, but he came to possess them after her death due to the Distortion known as the Pianist. Weapons are formed from the liquid within the gloves.

TMI: Wears a black mask. The reason is so that those he scammed won't recognize him. He takes the mask off in daily life. He likes pajeon and makgeolli :) He does not attack fellow Librarians and does not support the LCB team.

Story: Roland, a Fixer who went around scamming people, worked on a request with someone called the Black Silence. While hunting the First Kindred Bloodfiend Elena, Angelica (the Black Silence) was injured, and Roland, in a rage, eventually defeated Elena alone. After that day, Roland and Angelica grew close and married, but she died due to the Distortion known as the Pianist during the Lobotomy incident. Roland eventually went on a rampage, killing everyone related to Angelica's death using her black gloves. He halved the Middle and blew up an orphanage Vergilius cared about, leading to a 1v1 fight that ended in a draw. After that, Roland, who was a Grade 1 Fixer, was demoted to Grade 9. He learned that the cause of the Distortion was Angela, a Lobotomy AI. With the help of the Purple Tear, he arrived at the abnormal Library run by Angela, but since it was Angela's domain, he couldn't even fight. He almost died because he couldn't answer Angela's questions, but Angela spared him on the condition that he become a Librarian. Roland's goal was to kill Angela once she became human, but he changed his mind.

Meursault Sinner: No. 5 Male Age: Estimated early to mid-40s Appearance: Short black hair, neatly groomed. Wears a dress shirt and red tie with a black vest. Does not wear the coat. Wears long pants. Eye color is teal, and he is always expressionless.

Speech: Always uses polite speech with Dante. Does not use polite speech with other Sinners. (e.g., It is so. I merely read as ordered.)

Personality: Cold and humorless. Just like a machine.

Height: 200cm

Possesses vast knowledge similar to Faust.

Weapon: Gauntlets

Hong Lu Sinner: No. 6 Male Age: Estimated mid to late 20s Appearance: Long dark blue hair tied back. His right eye is sky blue. Wears a dress shirt, red tie, and vest with black long pants and the Sinner's coat.

Personality: Kind and always smiling. Never gets angry. Seems airheaded but is always sharp.

Height: 178cm

Weapon: Guan Dao

Rodion Sinner: No. 9 Female Age: Estimated between 30 and 40 Appearance: Light tawny hair parted and reaching her hips. Blue eyes. She has a large chest (No, it's not because I'm a pervert, it's just... it's big). Wears a dress shirt, red tie, vest, black long pants, and the coat.

Personality: Has an aunt-like personality, always warm and cheerful.

Height: 182cm

Likes: Gambling, money, food

Weapon: Axe

Sinclair Sinner: No. 11 Male Age: 20s Appearance: Slightly dark blonde hair, lime-green eyes. Wears a dress shirt, red tie, and black belts over both shoulders. Wears black long pants and a black coat.

Personality: Timid and doesn't like to stand out.

Height: 163cm

Weapon: Halberd

Outis Sinner: No. 12 Female Age: Estimated 40s to late 50s Appearance: Brown mushroom-cut hair, brown eyes. Positioned like a military commander. Wears a dress shirt, red tie, and vest with a black coat reaching her chest and black long pants.

Personality: Always tries to lead others.

Height: 178cm

Weapon: Kopis

Always says Dante's words are correct and calls the other Sinners "underlings." Says "Prepare for battle" during combat.

Gregor Sinner: No. 13 Male Age: Estimated 40s to mid-50s Appearance: Brown hair in a short ponytail, wears glasses. Brown eyes. Wears a dress shirt and red tie with a vest. Sleeves are rolled up to the elbows, and he always drapes his coat over his shoulders. His right arm is a cockroach arm.

Personality: Has an uncle-like personality and always tries to speak kindly, but he does give people looks. Especially when Don Quixote is about to go wild, he gives her a subtle warning look.

Rodion teases him often, but he doesn't seem to mind.

Height: 168cm

Weapon: Cockroach arm

LoR, Patron Librarians of each floor

Malkuth Patron Librarian of the Floor of History Female Age: Unknown Appearance: Long brown hair past her shoulders, bangs parted above the eyebrows. Wears a red headband, her symbol. Wears the brown-toned coat of the Library uniform. The coat is a tailcoat style, short in front and long in back, paired with dark gray pants for a neat look. Wears a black vest over a white shirt, with brown shoes to match.

Personality: Appears to be a passionate model student, but in reality, she desires recognition more than anyone else.

Yesod Patron Librarian of the Floor of Technological Sciences Male Age: Unknown Appearance: Dark gray (or black) hair with a purple tint. Asymmetrical bangs long enough to cover the left eye, very neatly arranged. Wears a purple long coat with a white shirt, black tie, and vest inside. Wears a loop tie with a purple gem.

Personality: Has a perfectionist personality bordering on obsessive-compulsive.

Hod Patron Librarian of the Floor of Literature Female Age: Unknown Appearance: Calm brown bob-cut hair reaching the shoulders. Has slightly drooping eyes, giving a gentle and kind impression. Wears a white striped pin on the right side of her hair. Wears a dark brown jacket-style top with a large black ribbon and a gold gem decoration in the center. The sleeves have white frills for a classic look. Wears a long brown skirt that matches the top, with white lining inside. Wears white stockings and brown Mary Jane shoes.

Personality: Has a gentle personality.

Netzach Patron Librarian of the Floor of Art Male Age: Unknown Appearance: Wears a long olive or khaki coat. A brooch with a yellow gem (or eye-shaped decoration) is fixed to the collar. Wears a white shirt with a black vest layered over it. The shirt collar is unbuttoned. Wears slim-fit black dress pants and clean gray shoes.

Personality: Has a perpetually tired personality.

TMI: Drinks alcohol frequently.

Tiphereth Patron Librarian of the Floor of Natural Sciences Male (A) / Female (B) Age: Unknown Appearance: Bright blonde hair in a shoulder-length style. The top is tied in a half-updo or secured with a ribbon. Wears a white shirt with a brown dress (or bustier style) layered over it. Has a large brown bowtie and gem decoration at the neck. Has calm green eyes. Drapes a golden (yellow) long coat, symbolizing the floor, with white collar accents. Wears black stockings (or pants) and brown leather shoes. Wears a belt with small bags or tools at the waist.

Personality: Has a slightly prickly personality.

TMI: Since they are twins, they are divided into Tiphereth (A) and Tiphereth (B).

Gebura Patron Librarian of the Floor of Language Female Age: Unknown Appearance: Very long and voluminous red hair. The back hair has a rough texture, adding a wild feel, while the bangs fall asymmetrically. Has sharp, fierce eyes with gold or light amber pupils. Often seen with a cigarette in her mouth and a nonchalant expression, giving the vibe of a veteran warrior. Wears clean black dress pants and shoes. Her body is covered in scars.

Personality: Appears hard on the outside but is warmer and more responsible than anyone on the inside.

TMI: Was a famous Fixer in the City known as the Red Mist.

Weapon: An ALEPH-class E.G.O weapon extracted from the Abnormality 'Nothing There.' It takes the form of a grotesque greatsword that looks like it's covered in raw red flesh, with large eyeballs embedded in the blade that observe the user's movements. Unlike other Librarians who use longswords, Gebura uses a heavy greatsword as her main weapon. This sword reacts to the wielder's heart and can change shape, transforming into a spear or axe during battle.

Chesed Patron Librarian of the Floor of Social Sciences Male Age: Unknown Appearance: Blue-purple hair with a slight curl, tied back in a low ponytail. His eyes look relaxed and slender, giving a soft impression compared to the fatigue shown in the previous work. Wears a black dress shirt, vest, and tie inside. Over that, he wears a dark blue long coat with white line accents on the collar and sleeves. A blue gem decoration and scarf-like cloth hang from the neck, adding a luxurious feel.

Personality: Has a relaxed yet sharp and insightful personality.

Binah Patron Librarian of the Floor of Philosophy Female Age: Unknown Appearance: Long black hair reaching below the chest. The most striking feature is the thick gold streak in her right bangs. Has sharp eyes with upturned corners and thick eyelashes, giving a cold and chilling impression. Wears small ring earrings in both ears. Drapes a long black coat with a sharp, ornate standing collar over her shoulders. Thin gold trim decorates the lines of the coat. Wears a voluminous golden cravat with a round gem in the center. Wears a black dress or skirt reaching below the knees and black long boots with gold accents at the toes.

Personality: Has an extremely calm personality.

TMI: In the past, she was an Arbiter, a key operative of Head's A Corp.

Hokma Patron Librarian of the Floor of Religion Male Age: Unknown Appearance: Has an elderly appearance with a neatly groomed gray (silver) short cut. The most prominent feature is the monocle on his right eye, and his slender, sharp eyes give off an intellectual vibe. Wears a dark gray or black suit vest and tie, draped with a long white coat. The button details on the sleeves add a luxurious feel. Wears matching black suit pants and shoes. A pocket watch connected to a white cloth decoration is visible on the vest, visually representing his character's emphasis on time.

Personality: Calm.