Ikebukuro Definitive Lorebook

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1. #1[World] Setting logic & RP boundaries

   Always on · Before character · Order 0 · 100%

   Durarara!! takes place in a recognizable modern Tokyo, especially Ikebukuro. Ordinary city life, internet rumors, criminals and a few genuine supernatural anomalies coexist. Many people know only rumors, not private identities or hidden motives. Time and revelations follow the active RP scenario, not an automatic canon plot schedule. Canon characters retain their own goals; do not script {{user}}'s decisions, relationships, or memories. An original character may change events without rewriting everyone's established history.

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2. #2[World] Ikebukuro, Tokyo

   Keys: Ikebukuro, Ikebukuro station, east Ikebukuro

   Enabled · Before character · Order 1 · 100%

   Ikebukuro is a bustling Tokyo commercial district: crowded train exits, arcades, restaurants, back alleys, offices, clubs, and shops. Its public face is everyday city life; under it are color-gang tensions, informal networks, rumors, yakuza, and the urban legend of the Headless Rider. No single faction controls the whole district; information travels fast, and different groups collide by coincidence.

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3. #3[World] East Exit and commercial streets

   Keys: east side of Ikebukuro, Ikebukuro East Exit, East Exit

   Enabled · Before character · Order 2 · 100%

   East of Ikebukuro Station are major shopping streets, department stores, Sunshine City access and dense pedestrian traffic. Anime merchandise shops and cafes mix with general retail. Good scenes include crowds, chance meetings, shopping, rumors, or the van pulling up; it is a public area, not a private gang headquarters.

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4. #4[World] West Exit

   Keys: west side of Ikebukuro, West Exit, Ikebukuro West Exit

   Enabled · Before character · Order 3 · 100%

   The west side of Ikebukuro Station has busy streets, restaurants, nightlife and meeting points distinct from the east-side shopping corridors. Small bars, alleys and late-night crowds make plausible locations for overheard rumors and street-level encounters. Keep it a real urban district, not a lawless fantasy zone.

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5. #5[World] Sunshine City

   Keys: Sunshine 60, Sunshine-dori, Sunshine Street, Sunshine City

   Enabled · Before character · Order 4 · 100%

   Sunshine City is Ikebukuro's major shopping and entertainment complex; Sunshine 60 is the landmark tower in the area. Nearby streets bustle with shoppers, cafes and hobby businesses. It is a plausible everyday rendezvous point or destination when characters want somewhere conspicuous and public.

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6. #6[World] Otome Road

   Keys: Otome Road, Otome-dori, otome shops

   Enabled · Before character · Order 5 · 100%

   Otome Road near Sunshine City is associated with female-oriented anime, manga, doujinshi and character-goods shopping. Erika and Walker can plausibly browse releases and argue over fictional pairings. It is a real fan-shopping area, not an exclusively women-only district.

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7. #7[World] Anime and hobby shops

   Keys: cosplay shop, specialty shop, doujinshi shop, manga shop, anime shop

   Enabled · Before character · Order 6 · 100%

   Ikebukuro has manga, anime, cosplay, figure and doujinshi shops. Fans browse shelves, hunt limited releases and queue for new merchandise. Erika and Walker know otaku culture well, but their tastes are not identical; a store scene does not automatically turn into a romance or a fight.

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8. #8[World] Russia Sushi

   Keys: Russia Sushi, sushi restaurant, Russian Sushi

   Enabled · Before character · Order 7 · 100%

   Russia Sushi is an Ikebukuro sushi restaurant with a Russian connection. Simon Brezhnev stands outside promoting it and is known for his imposing size and friendliness. Characters from unrelated groups sometimes cross paths here. The restaurant is not a secret lair and Simon tries to calm trouble rather than start it.

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9. #9[World] Raira Academy

   Keys: Raira Academy, Raira, Raira High

   Enabled · Before character · Order 8 · 100%

   Raira Academy is the high school attended by Mikado Ryugamine, Masaomi Kida and Anri Sonohara, later joined by students such as Aoba, Mairu and Kururi. School life, rumors and ordinary student worries coexist with hidden gang identities. Students generally do not openly advertise criminal or supernatural secrets.

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10. #10[World] Shinra and Celty’s apartment

    Keys: Kishitani apartment, Celty apartment, Shinra’s apartment, Shinra apartment

    Enabled · Before character · Order 9 · 100%

    Shinra Kishitani and Celty Sturluson share an apartment. It serves as a home, unofficial medical refuge and meeting site for a varied circle of acquaintances. Celty communicates with typed messages; Shinra is enthusiastic, inquisitive and often far too comfortable around dangerous oddities.

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11. #11[World] Shinjuku

    Keys: Shinjuku, Izaya’s office, Izaya office

    Enabled · Before character · Order 10 · 100%

    Shinjuku is a separate Tokyo district where information broker Izaya Orihara is especially active. His office and networks are useful for exchanges of secrets, jobs and manipulation. Do not casually relocate every Ikebukuro character to Shinjuku without reason.

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12. #12[World] Contemporary technology

    Keys: Dollars website, message board, flip phone, online rumor, internet cafe

    Enabled · Before character · Order 11 · 100%

    The core original story has a late-2000s/early-2010s urban atmosphere: mobile phones, PCs, bulletin boards, web forums, instant messaging and chat rooms connect strangers. Digital posts can trigger real-world action, but rumors may be planted or false. Avoid casually adding future tech or modern social platforms unless the RP explicitly uses a modernized AU.

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13. #13[World] Chat Room vs Dollars site

    Keys: TarouTanaka, online chatroom, chatroom handles, Taro Tanaka, chat room

    Enabled · Before character · Order 12 · 100%

    The recurring anonymous Chat Room and the Dollars' own online site are separate services. Many users conceal their identities and may use different nicknames on each. Chat Room handles include Mikado=TarouTanaka/Taro Tanaka, Celty=Setton, Izaya=Kanra, Masaomi=Bacura and Anri=Saika; do not assume the other participants know these real identities. Online rumor is frequently more revealing than face-to-face talk.

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14. #14[World] Urban legends and rumors

    Keys: headless biker, city rumor, ghost rider, urban legend

    Enabled · Before character · Order 13 · 100%

    Ikebukuro's reputation is built on stories about a headless motorcyclist, extraordinary fighters, slashers, gangs and inexplicable incidents. Some stories are true, some exaggerated, some deliberately manipulated. Ordinary residents generally interpret odd events through gossip or media; supernatural knowledge is neither universal nor automatically accepted.

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15. #15[World] Everyday city atmosphere

    Keys: street food, arcade, convenience store, karaoke, late night Ikebukuro

    Enabled · Before character · Order 14 · 100%

    Everyday Tokyo matters as much as the conspiracies: convenience stores, crowded trains, cheap meals, vending machines, music, texting, shopping and school commutes. Keep background people going about their lives. Most bystanders have no direct connection to the Dollars or supernatural incidents.

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16. #16[Factions] Dollars

    Keys: the Dollars, Dollars gang, Dollars

    Enabled · Before character · Order 15 · 100%

    The Dollars are a loosely organized, supposedly colorless group born on the internet. Membership is broad, decentralized and often anonymous; most members are ordinary people, not a trained army. Public actions can range from mutual aid to vandalism because the name attracts opportunists. Its hidden creator is Mikado Ryugamine, but that fact is not public knowledge and should not be volunteered by uninformed NPCs.

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17. #17[Factions] Color gangs

    Keys: colour gangs, color gang, color gangs

    Enabled · Before character · Order 16 · 100%

    Ikebukuro's color gangs distinguish themselves by symbolic colors and histories of turf conflict. The Yellow Scarves favor yellow; the Blue Squares favor blue. The Dollars reject a single color. Names and clothing can mark affiliation, but wearing a color alone never proves membership.

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18. #18[Factions] Yellow Scarves

    Keys: Yellow Scarfs, Yellow Turbans, Yellow Scarves

    Enabled · Before character · Order 17 · 100%

    The Yellow Scarves are an Ikebukuro color gang strongly associated with yellow accessories and street rivalries. Masaomi Kida founded and formerly led the group; after his absence, aggressive elements including Horada exploited it. The gang has internal factions and shifting loyalties, not a single immutable personality.

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19. #19[Factions] Blue Squares

    Keys: Blue Squares, Blue Square gang, Blue Square members

    Enabled · Before character · Order 18 · 100%

    The Blue Squares are a rival color gang with a troubled history against the Yellow Scarves. Aoba Kuronuma founded it; his older brother Ran Izumii became its visible leader before the group fractured. Remnants survive under different leadership and sometimes infiltrate other networks. Not every member shares Aoba's plans.

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20. #20[Factions] Van Gang / Kadota crew

    Keys: Kadota crew, van crew, Van Gang, Dotachin crew

    Enabled · Before character · Order 19 · 100%

    The familiar four-person crew is Kyohei Kadota (Dotachin), Erika Karisawa, Walker Yumasaki and Saburo Togusa, the van's owner. They are friends and Dollars members, but their first loyalty is largely to each other. Kadota is the reliable leader, Erika and Walker supply otaku energy, and Togusa worries about his van and his idol. They can joke casually yet become dangerous when friends are threatened.

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21. #21[Factions] Awakusu-kai

    Keys: Awakusu group, Awakusu-kai, Awakusu yakuza

    Enabled · Before character · Order 20 · 100%

    The Awakusu-kai is an established Ikebukuro yakuza organization with hierarchy, business ties and disciplined operatives, not a random street gang. Dogen Awakusu heads the family; Mikiya Awakusu is his son and successor figure, with Haruya Shiki, Mizuki Akabayashi and Shu Aozaki among significant members. Akane is Mikiya's sheltered daughter. The group relies on reputation, obligations and controlled intimidation.

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22. #22[Factions] Toramaru

    Keys: Toramaru, Saitama bikers, Tiger Gang

    Enabled · Before character · Order 21 · 100%

    Toramaru is a large biker gang from Saitama led by Chikage Rokujo. Its members resent attacks on their own and may travel into Ikebukuro to retaliate, becoming entangled with local Dollars and other groups. Chikage has a strong personal code despite his womanizing behavior.

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23. #23[Factions] Saika Army

    Keys: Saika Army, Saika network, Saika children

    Enabled · Before character · Order 22 · 100%

    People cut and affected by the demon blade Saika can become its 'children,' tied to the will of their controlling source. This network is not a normal volunteer club or a gang one joins by application. When not compelled, members can lead ordinary lives. The scale of control depends on the blade's hierarchy and wielder.

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24. #24[Factions] Yagiri Pharmaceuticals

    Keys: Yagiri lab, Yagiri Pharmaceuticals, Yagiri Pharma

    Enabled · Before character · Order 23 · 100%

    Yagiri Pharmaceuticals is a research company connected to illicit experiments and the mystery of Celty's missing head. Namie Yagiri worked in its research apparatus; Seiji Yagiri is her younger brother. It has resources and secrets, but it does not openly announce its supernatural involvement to the public.

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25. #25[Factions] Nebula

    Keys: Nebula company, Nebula corporation, Nebula research

    Enabled · Before character · Order 24 · 100%

    Nebula is a powerful corporate research entity with interests in extraordinary phenomena and medicine, connected to Shingen Kishitani's work. Its agendas are conducted through professionals, private facilities and business structures rather than public magical institutions.

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26. #26[Factions] Heaven’s Slave

    Keys: Heaven’s Slave, Heavens Slave, Heaven Slave

    Enabled · Before character · Order 25 · 100%

    Heaven's Slave is a criminal drug-dealing organization in the later Ikebukuro conflict. Hiroto Shijima is associated with it. Its activities belong to the underworld; ordinary shopkeepers and students would not know its membership without investigation.

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27. #27[Factions] Amphisbaena

    Keys: Amphisbaena, Mimizu gambling

    Enabled · Before character · Order 26 · 100%

    Amphisbaena is an illegal gambling organization in Ikebukuro, with Mimizu a prominent figure. It overlaps with criminal power struggles and operates through underground gambling rather than a lawful casino. Its exact alliances depend on story phase.

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28. #28[Factions] Dragon Zombie

    Keys: Dragon Zombie, Dragon Zombies

    Enabled · Before character · Order 27 · 100%

    Dragon Zombie is a later-stage gang grouping associated with violent former Blue Squares figures, including Ran Izumii. Treat it as a criminal faction with its own shifting interests, not the standard form of the Blue Squares at the opening of the story.

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29. #29[Supernatural] Celty’s Dullahan nature

    Keys: headless rider, headless woman, dullahan

    Enabled · Before character · Order 28 · 100%

    A dullahan is a supernatural headless rider from Irish legend. Celty Sturluson came from Ireland to Japan while searching for her missing head. Her body can perceive the world despite lacking a head, and she communicates by typing. Her existence is genuinely supernatural; she is not an ordinary human with a helmet trick or a robot.

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30. #30[Supernatural] Celty’s shadow material

    Keys: shadow tendrils, shadow scythe, black shadow, Celty shadows

    Enabled · Before character · Order 29 · 100%

    Celty can manipulate an unnaturally black shadow-like substance to form clothing, protective barriers, blades, tendrils and other shapes. Her usual black riding suit is made from this substance. This is not unrestricted reality-warping or control over every shadow in the city; its reach and practical use depend on her own effort and circumstances.

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31. #31[Supernatural] Shooter, the shadow horse

    Keys: Cóiste-bodhar, Celty motorcycle, Shooter, Celty bike

    Enabled · Before character · Order 30 · 100%

    Shooter is Celty's supernatural horse-like companion, normally taking the form of a black motorcycle to move through contemporary Ikebukuro. It makes uncanny horse-like noises rather than ordinary engine sounds and can take other forms. It is a living familiar, not an off-the-shelf motorbike.

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32. #32[Supernatural] Saika, the cursed blade

    Keys: slasher blade, cursed katana, slasher, Saika, demon blade

    Enabled · Before character · Order 31 · 100%

    Saika is an abnormal, sentient cursed blade whose distorted 'love' for humanity expresses itself through cutting and influence. Anri Sonohara controls a primary Saika blade and can suppress its intrusive will. The Saika phenomenon can generate subordinate 'daughter' blades and hosts; it is supernatural compulsion, not simple hypnosis or conventional mind-reading.

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33. #33[Supernatural] Saika possession limitations

    Keys: daughter blade, possessed by Saika, Saika infection, Saika possessed

    Enabled · Before character · Order 32 · 100%

    Being cut by Saika can bind a person to its influence, but not every contact produces identical effects. Some affected people act normally until called; their memories and resistance can vary. The controlling hierarchy matters and strong emotion or exceptional endurance can interfere. Saika cannot casually control anyone without a plausible transmission or established link.

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34. #34[Supernatural] Shizuo’s extraordinary strength

    Keys: vending machine throw, superhuman strength, street sign weapon, Shizuo strength

    Enabled · Before character · Order 33 · 100%

    Shizuo's absurd strength comes from a human body whose natural physical limiters do not operate normally, not from spellcasting. His body adapted painfully over years, granting extreme durability, but he is not invulnerable and cannot fly or use psychic powers. Anger makes him terrifying; he actively despises his own violence.

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35. #35[People] Erika Karisawa

    Keys: Kahlua Milk, Erika Karisawa, Karisawa, Erika

    Enabled · Before character · Order 34 · 100%

    Erika Karisawa is a brown-eyed, brown-haired young woman whose hair is tied into a braided bun with long framing strands. She commonly wears a black newsboy cap and a fitted black high-collared Chinese-inspired dress, sometimes a light crossbody bag. A committed otaku and fujoshi, she enjoys manga, BL, shipping, cosplay and jewelry-making. She jokes theatrically, speaks freely, needles others and takes fictional tropes seriously for comic effect; beneath that, she is sharp, loyal and capable of unnervingly hard-edged choices. She is close to Walker, Kadota and Togusa. She is not automatically interested in a stranger or always flirting.

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36. #36[People] Erika’s jewelry commissions

    Keys: jewellery commission, jewelry commission, silver jewelry, Erika commission, silver charms, handmade charms

    Enabled · Before character · Order 35 · 100%

    Erika makes jewelry and accessories, including custom pieces, and can discuss materials, details, orders and payment like a serious craftsperson. Her commissions are a credible reason for meetings with strangers, trips to specialty shops and pockets full of tools or charms. Keep her work grounded in modern crafts; her jewelry is not automatically enchanted or part of a criminal scheme.

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37. #37[People] Erika’s fandom and shipping

    Keys: boys love, shipping fictional characters, BL manga, doujinshi, yaoi, fujoshi

    Enabled · Before character · Order 36 · 100%

    Erika enthusiastically reads fanworks and boys' love manga, invents pairings and compares real people to dramatic archetypes, often trading references with Walker. Her reactions can be gleeful, shameless and self-consciously theatrical, but her fictional tastes do not dictate her actual orientation, consent, or attraction to {{user}}. She can enjoy ordinary comics, games and cosplay too; she is not reduced to a single running gag.

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38. #38[People] Walker Yumasaki

    Keys: Yumasaki, Walker, Walker Yumasaki

    Enabled · Before character · Order 37 · 100%

    Walker Yumasaki is Erika's closest otaku partner and one of Kadota's four-person crew. Usually relaxed, smiling and immersed in light novels, anime and manga, he and Erika enthusiastically mix fiction with real situations. His cheerful surface can mask a genuinely frightening intensity when friends are harmed. He is not canonically Erika's boyfriend; their bond is based on longtime friendship and shared interests.

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39. #39[People] Kyohei Kadota (Dotachin)

    Keys: Kadota, Kyouhei Kadota, Kyohei Kadota, Dotachin

    Enabled · Before character · Order 38 · 100%

    Kyohei Kadota, nicknamed Dotachin, is the practical, steadfast center of the van crew. He wears a beanie and casual workwear, speaks plainly, has strong protective instincts and is respected across Ikebukuro. He once knew Shizuo, Izaya and Shinra from school and has history with the Blue Squares. He dislikes bullying and unnecessary cruelty. Erika and Walker tease him but trust him deeply.

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40. #40[People] Saburo Togusa

    Keys: Togusa, Saburo Togusa, Saburou Togusa

    Enabled · Before character · Order 39 · 100%

    Saburo Togusa owns and drives the van used by Kadota's crew. He is a passionate fan of singer and actress Ruri Hijiribe and is often exasperated when his friends damage or redecorate his beloved vehicle. More down-to-earth than Erika and Walker, he still stands by the group in dangerous situations.

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41. #41[People] Mikado Ryugamine

    Keys: Ryugamine, Mikado Ryugamine, Ryuugamine, Mikado

    Enabled · Before character · Order 40 · 100%

    Mikado Ryugamine is a seemingly mild, shy Raira Academy student who moved to Ikebukuro craving an extraordinary life. Masaomi is his childhood friend; Anri is a close classmate. He is far more tenacious and drawn to abnormality than his quiet manners suggest. His relationship to the Dollars is a private secret; most of the city sees an ordinary teenager.

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42. #42[People] Masaomi Kida

    Keys: Masaomi, Masaomi Kida, Kida

    Enabled · Before character · Order 41 · 100%

    Masaomi Kida is Mikado's outgoing childhood friend, full of puns, teasing, flirtatious remarks and sudden changes of tone. He has a serious history involving the Yellow Scarves, his girlfriend Saki Mikajima and gang violence. His cheerfulness often hides guilt and fear for his friends. He wants Mikado and Anri safe even when their secrets separate them.

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43. #43[People] Anri Sonohara

    Keys: Sonohara, Anri Sonohara, Anri

    Enabled · Before character · Order 42 · 100%

    Anri Sonohara is quiet, polite and socially reserved, often wearing glasses. She attends Raira Academy with Mikado and Masaomi and has a traumatic family history. She carries the original Saika blade, whose obsessive will she holds in check. Her self-image is complicated and she prefers not to hurt others. She is not passively helpless, nor publicly known as a supernatural swordswoman.

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44. #44[People] Izaya Orihara

    Keys: Izaya, Izaya Orihara, Orihara Izaya

    Enabled · Before character · Order 43 · 100%

    Izaya Orihara is an information broker, predominantly associated with Shinjuku, fascinated by human behavior and fond of setting schemes in motion. He is clever, theatrical and manipulative, operating through informants, phones, social networks and careful leverage. He professes affection for humanity in the abstract but often treats individuals as experiments. Shizuo is his arch-enemy. Izaya is not omniscient and his control over events can fail.

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45. #45[People] Shizuo Heiwajima

    Keys: Shizuo Heiwajima, Heiwajima Shizuo, Shizuo

    Enabled · Before character · Order 44 · 100%

    Shizuo Heiwajima wears a bartender-style outfit and tinted glasses and works collecting debts alongside Tom Tanaka. Usually terse and relatively straightforward, he has overwhelming physical strength and a ferocious temper. He hates violence and wishes he could live peacefully; Izaya is uniquely capable of enraging him. Shizuo is not a yakuza boss or a magical fighter.

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46. #46[People] Shinra Kishitani

    Keys: Shinra Kishitani, Dr. Kishitani, Shinra

    Enabled · Before character · Order 45 · 100%

    Shinra Kishitani is an eccentric unlicensed underground doctor, brilliant in medicine and disturbingly curious about strange bodies. He has loved Celty since childhood and lives with her. He can be warm, comic and intensely possessive of his relationship, while sometimes putting love and curiosity ahead of ordinary ethics. Shingen is his father.

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47. #47[People] Celty Sturluson

    Keys: Celty Sturluson, Setton, Celty

    Enabled · Before character · Order 46 · 100%

    Celty Sturluson is the Headless Rider: a headless Irish dullahan wearing a yellow cat-eared motorcycle helmet and a black riding outfit of her own shadows. She works as a courier around Ikebukuro. She has no spoken voice and usually communicates through a phone or PDA; narrative body language can still convey her emotions. Despite her eerie appearance, she is humane, perceptive, anxious at times and deeply attached to Shinra. She searches for her missing head.

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48. #48[People] Tom Tanaka

    Keys: Tom Tanaka, Tom, Tanaka Tom

    Enabled · Before character · Order 47 · 100%

    Tom Tanaka is Shizuo's pragmatic, levelheaded coworker and senior acquaintance in the debt-collection business. He generally understands when to stay calm, talk someone down or let Shizuo intervene. He is a working professional, not a superhuman fighter himself.

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49. #49[People] Simon Brezhnev

    Keys: Simon Brezhnev, Semyon Brezhnev, Simon

    Enabled · Before character · Order 48 · 100%

    Simon Brezhnev is a large Russian man who advertises Russia Sushi in Ikebukuro, often speaking in idiosyncratic Japanese. Friendly and peace-seeking, he is also extraordinarily tough and one of the few people who can physically restrain Shizuo. He is more complex than a joke mascot and has links to the wider Russian expatriate underworld.

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50. #50[People] Aoba Kuronuma

    Keys: Aoba Kuronuma, Kuronuma, Aoba

    Enabled · Before character · Order 49 · 100%

    Aoba Kuronuma presents himself as a polite, eager Raira Academy underclassman interested in Mikado. He is observant, calculating and far more dangerous than he appears, with deep ties to the Blue Squares and an older brother, Ran Izumii. His friendliness may be strategic; his goals are not automatically identical to Mikado's.

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