Explaining the Origins of the "Bungo Stray Dogs" Characters! What Was Dazai Osamu Really Like?

  • Feb 8, 2025
  • Yukari

The anime "Bungo Stray Dogs" has been airing since April 2016. The original story is written by Kafka Asagiri, with illustrations by Sango Harukawa, and it is currently serialized in "Young Ace." In this article, we will explain the personalities and special abilities of main characters such as Osamu Dazai, Ryunosuke Akutagawa, Chuya Nakahara, and Atsushi Nakajima, while also exploring their connections to the real-life literary figures they are based on.

By purchasing or reserving products introduced in this article, a portion of the sales may be returned to FUN! JAPAN.

What Is "Bungo Stray Dogs" About?

文豪ストレイドッグス アニメ
Copyright: Animate

Set in the fictional city of Yokohama, "Bungo Stray Dogs" is a supernatural battle action series featuring characters inspired by famous literary figures. The protagonist, Atsushi Nakajima, is kicked out of his orphanage and, by chance, saves Osamu Dazai, who was attempting to drown himself. This encounter leads him to join the "Armed Detective Agency," a group of individuals with special abilities who work to protect Yokohama. As the story unfolds, Atsushi and his allies face off against their formidable enemies, the "Port Mafia," where Ryunosuke Akutagawa serves as a key member. Alongside intense battles, each character must confront and overcome their own past.

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Why Is "Bungo Stray Dogs" So Popular?

With five seasons aired so far, "Bungo Stray Dogs" continues to captivate fans. Here are four key reasons why the series has gained such widespread love.

Unique Characters with Intriguing Backgrounds

本 文学

As the title suggests, "Bungo Stray Dogs" features many characters modeled after real-life literary figures. Their abilities, personalities, and thought processes are often directly influenced by the works of the writers they are based on. This makes the characters not only distinctive but also easier to remember for viewers.

A Fusion of Literature and Supernatural Battles

Each character’s ability is named after a literary work by their real-life counterpart—for example, Osamu Dazai's ability is called "No Longer Human." This unique concept allows literature enthusiasts to enjoy predicting the nature of different abilities based on their knowledge of the original works. At the same time, even viewers unfamiliar with Japanese literature can still be drawn in by the dynamic battle scenes and the compelling personalities of the characters, making it hard to stop at just one episode.

Depth of Story and Relatable Themes

本 文学

One of the core themes of "Bungo Stray Dogs" is the constant questioning of one’s own existence. The protagonist, Atsushi Nakajima, gradually builds self-esteem through his experiences at the Armed Detective Agency, while Osamu Dazai, through his interactions with comrades, searches for a reason to live. The series deeply explores the human struggles and personal growth of its characters.

The literary works that inspire the abilities, such as Osamu Dazai’s "No Longer Human" and Atsushi Nakajima’s "The Moon Over the Mountain," also revolve around themes of human suffering and the search for meaning. With settings that make viewers question, "Do I have value in this world?" or "How can I accept myself?" the series offers a story that resonates with many audiences.

High-Quality Animation and Star-Studded Voice Cast

The action scenes in "Bungo Stray Dogs" are characterized by smooth movements and dynamic choreography. Each supernatural ability is uniquely portrayed with special effects that reflect literary themes, often incorporating kanji and traditional Japanese elements into the animation. Additionally, subtle changes in color and character expressions are carefully used to beautifully convey emotions throughout the series.

The voice cast is also exceptional, featuring top-tier actors such as Mamoru Miyano (known for playing Light Yagami in "DEATH NOTE" and Douma in "Demon Slayer"), Yoshimasa Hosoya (Reiner in "Attack on Titan" and Asahi Azumane in "Haikyuu!!"), and Hiroshi Kamiya (Levi in "Attack on Titan" and Takashi Natsume in "Natsume's Book of Friends"). From the animation to the voice acting, every aspect of the series is crafted with remarkable quality.

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Character Analysis: What Do They Have in Common with Their Literary Counterparts?

The characters in "Bungo Stray Dogs" are inspired by the lives and works of famous authors. Here, we’ll introduce key details about the main characters, including their personalities, abilities, and connections to their real-life counterparts. Understanding these backgrounds may deepen your appreciation of the series.

Atsushi Nakajima: A Boy Searching for the Meaning of Life

文豪ストレイドッグス 中島敦
Copyright: Animate

Atsushi Nakajima is the protagonist of "Bungo Stray Dogs" and possesses the supernatural ability "Beast Beneath the Moonlight," which allows him to transform into a giant, ferocious tiger. One day, after being kicked out of his orphanage and wandering aimlessly, he saves Osamu Dazai and is subsequently recruited into the Armed Detective Agency. Though timid, he is kind-hearted and willing to risk himself to protect others when necessary. His ability is inspired by the short story "The Moon Over the Mountain," in which a man named Li Zheng, who failed in his dream of becoming a renowned poet, transforms into a tiger and reflects on his fate with an old friend. This transformation into a tiger mirrors Atsushi’s ability, and many aspects of his personality align with the themes of the original story.

  • Name: Atsushi Nakajima

  • Ability: Beast Beneath the Moonlight
  • Effect: Transforms into a giant, ferocious tiger
  • Literary Inspiration: "The Moon Over the Mountain" (short story)

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Osamu Dazai: A Genius Caught Between Life and Death

文豪ストレイドッグス 太宰治

Copyright: Animate

太宰治

Osamu Dazai (1909-1948) Source: National Diet Library "Portrait of a Modern Japan" (https://www.ndl.go.jp/portrait/)

A member of the Armed Detective Agency, Dazai is a self-proclaimed suicide enthusiast searching for the perfect way to die—ideally in a double suicide with a beautiful woman. Despite his lighthearted and elusive demeanor, he is highly strategic, always thinking several steps ahead. His supernatural ability, "No Longer Human," nullifies other abilities and is inspired by Osamu Dazai’s novel of the same name. This ability reflects the novel’s themes of self-denial and the loss of life’s meaning, mirroring Dazai’s own inner conflict—desperately seeking a reason to live while also longing for death.

  • Name: Osamu Dazai

  • Ability: No Longer Human
  • Effect: Nullifies other abilities
  • Literary Inspiration: "No Longer Human" (novel)

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Ryunosuke Akutagawa: A Cold and Proud Warrior

文豪ストレイドッグス 芥川龍之介
Copyright: Animate
芥川龍之介
Ryunosuke Akutagawa (1892-1927) Source: National Diet Library "Portrait of a Modern Japan" (https://www.ndl.go.jp/portrait/) 

A ruthless member of the Port Mafia, Akutagawa is known for his black cloak and deathly stare, making him feared even among the Armed Detective Agency. His ability, "Rashomon," allows him to summon a black beast capable of tearing through objects and space itself. The ability is inspired by the classic short story "Rashomon" by Ryunosuke Akutagawa, which explores the ugliness of human nature and moral decay. Elements of unease, horror, and the grotesque—hallmarks of Akutagawa’s literature—are deeply woven into both the character and his powers.

  • Name: Ryunosuke Akutagawa

  • Ability: Rashomon
  • Effect: Summons a black beast that can tear through objects and space
  • Literary Inspiration: "Rashomon" (short story)

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Chuya Nakahara: The Fiery, Small Giant

文豪ストレイドッグス 中原中也
Copyright: Animate
中原中也
Nakahara Nakaya (1907-1937) Source: National Diet Library "Portrait of a Modern Japan" (https://www.ndl.go.jp/portrait/) 

A high-ranking executive of the Port Mafia, Chuya despises Osamu Dazai. Though small in stature, he is a powerful and agile fighter, always seen wearing his signature black hat. His ability, "For the Tainted Sorrow," allows him to manipulate gravity and is inspired by the poem of the same name by Chuya Nakahara. In real life, Nakahara and Dazai were known to have a strained relationship, a dynamic faithfully recreated in the series.

  • Name: Chuya Nakahara

  • Ability: For the Tainted Sorrow
  • Effect: Manipulates gravity
  • Literary Inspiration: "For the Tainted Sorrow" (poem)

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Doppo Kunikida: The Idealist Who Walks in Reality

文豪ストレイドッグス 国木田独歩
Copyright: Animate
Doho Kunikida (1871-1908) Source: National Diet Library "Portrait of a Modern Japan" (https://www.ndl.go.jp/portrait/) 

A member of the Armed Detective Agency, Kunikida always carries a notebook inscribed with the word "Ideal," which serves as his personal guide through life. He is rigid and detests any disruptions to his carefully planned schedule, making his partnership with the carefree Dazai a constant struggle. His ability, "Lone Poet," is named after the pen name of the real-life writer Doppo Kunikida and allows him to materialize objects written in his notebook. Before joining the agency, he worked as a mathematics teacher, mirroring the historical Kunikida, who also taught math and English.

  • Name: Doppo Kunikida

  • Ability: Lone Poet
  • Effect: Materializes objects written in his notebook
  • Literary Inspiration: The pen name of Doppo Kunikida

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Edogawa Ranpo: The Genius Detective

文豪ストレイドッグス 江戸川乱歩
Copyright: Animate
江戸川乱歩
Edogawa Ranpo (1894-1965) Source: National Diet Library "Portrait of a Modern Japan" (https://www.ndl.go.jp/portrait/) 

A member of the Armed Detective Agency, Ranpo possesses extraordinary observational skills and is a detective revered by his peers. Frequently called upon by the police to solve impossible cases, he is confident to the point of arrogance, with a childlike and mischievous personality. His so-called "ability," "Super Deduction," is not actually a supernatural power but rather an exceptional intellect, which the agency's president, Fukuzawa, has officially recognized as an ability. This mirrors the works of the real-life Edogawa Ranpo, whose detective novels featured brilliant sleuths with extraordinary deductive skills.

  • Name: Edogawa Ranpo

  • Ability: Super Deduction (not a supernatural ability but recognized as one by Fukuzawa)
  • Effect: Extraordinary observational and deductive skills
  • Literary Inspiration: Edogawa Ranpo’s detective novels

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Kenji Miyazawa: The Pure-Hearted Nature Lover

文豪ストレイドッグス 宮沢賢治
Copyright: Animate
Kenji Miyazawa (1896-1933) Source: National Diet Library "Portrait of a Modern Japan" (https://www.ndl.go.jp/portrait/) 

A member of the Armed Detective Agency, Kenji grew up in a remote countryside village without electricity before being scouted by the agency’s president. His trusting nature leads him to believe that any problem can be solved through communication, earning him the affectionate nickname "Ken-chan" among the townspeople. His ability, "Unyielding to the Rain," grants him immense strength but only when he is hungry. It is based on the famous poem "Ame ni mo Makezu" by Kenji Miyazawa, which describes an unwavering, resilient spirit that endures hardship without complaint.

  • Name: Kenji Miyazawa

  • Ability: Unyielding to the Rain
  • Effect: Superhuman strength that activates only when hungry
  • Literary Inspiration: The poem "Ame ni mo Makezu"

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