In this blog post, we’ll examine Osamu Dazai’s life and major works, summarizing his literary characteristics and recurring themes.

Osamu Dazai’s Life and Tragic End

Osamu Dazai, a writer widely known for works such as ‘No Longer Human’ and ‘Sayonara’, took his own life by jumping into the sea with a woman in 1948. His body was discovered five days later, on his 39th birthday, and to commemorate that day, an annual gathering is still held by those who cherish his memory. People refer to the day he was found as “Otoki” and express their condolences.
Dazai was born into a family of emerging merchants and large landowners who had amassed wealth through money lending following the Meiji Restoration. Because his mother was frail, he was raised by a nanny and his aunt; he showed a talent for writing and foreign languages from an early age and excelled in school. However, around the age of nineteen, while in high school, he made his first suicide attempt, revealing an unstable path in life.
After enrolling in the French Literature Department at the University of Tokyo, he joined the Communist Party at the urging of a senior student and even attempted suicide by jumping into the sea with a woman he met at a bar in Ginza. He survived that incident, and after leaving home due to a relationship with a geisha, he married a woman with whom he had two daughters. In his later years, he had relationships with several women—including the woman who played a major role in the creation of his work ‘Sayō’; a divorced woman who had once aspired to be a writer and who bore and raised his daughter; and a nurse and war widow with whom he ultimately jumped to his death—but he never found a place where he could settle down.
Dazai repeatedly endured extreme suffering, including drug addiction, multiple suicide attempts, and hospitalization in psychiatric institutions, and some critics disparaged him as a “mentally weak nihilist.” Nevertheless, young readers continue to lay flowers at his grave and seek out the emotional resonance and candor found in his writing.

Literary Characteristics: First-Person Narrative Style, Humor, and Directness

Most of Dazai’s works are narrated from an implied first-person perspective and frequently feature a conversational style that seems to address the reader directly, along with dry humor. This style resonated with the inner struggles of the Japanese people living amid the chaos and desolation following Japan’s defeat in World War II, and it retains a peculiar charm that still touches the depths of the human heart today.
Despite his literary achievements—he was even nominated for the Akutagawa Prize—his work was not fully recognized, and in his personal life, he led an unstable existence, including being committed to a mental hospital by his seniors and friends. After numerous trials and errors, his relentless “self-destruction” ultimately culminated in suicide.

“No Longer Human”—A Record of Loss and Alienation

‘No Longer Human’ is an autobiographical novel written in 1948, shortly before Dazai’s suicide, and it directly reflects the author’s own consciousness and inner turmoil. The entire work can be read as a narrative of loss and alienation, which is linked to the authority of his father, the lack of maternal love, the discord with his many siblings, and the sense of alienation he felt in Tokyo, a city far from his hometown—all of which Dazai experienced throughout his life.
The narrator, Yōjō, is portrayed as the son of a local dignitary, a large landowner, and a member of the Diet—a patriarchal and authoritarian figure. As the youngest child, the protagonist grows up deprived of his father’s warmth and suppressed among his many siblings. The work contains almost no mention of affection for his mother, which implies a lack of maternal love and forms the emotional foundation of the protagonist’s entire life.
This lack of affection, loss of self-confidence, and the discord he feels between those in power and their followers lead the protagonist to repeatedly engage in “ridiculous behavior” that contradicts his true feelings. He adopts theatrical and contradictory behavior as the sole link between himself and others, using it as a means of self-defense throughout his life.
Furthermore, the loss of trust in his friend Horiki and his guarantor Nepchi, along with the betrayal by someone he trusted—who had him committed to a psychiatric hospital rather than a convalescent home, effectively turning him into a “madman”—served as a devastating blow that completely shattered the protagonist, resulting in his retreat into seclusion like a recluse after his discharge.

Fear, Guilt, and the Temptation of Death

The fear the protagonist feels stems from his father’s overwhelming authority and expands into a fear of all other people. This fear gives rise to lies and theatrical behavior, which in turn induce a sense of guilt. Because of this guilt, he confesses that he is cut off from communication with others and cannot understand their lives.
Death and suicide are temptations that never leave the protagonist’s mind and serve as his eternal refuge. He attempts suicide several times, and after surviving a joint suicide attempt, he is tormented by self-loathing and guilt for the rest of his life. The very fact of his survival felt like a humiliation to him, and throughout the memoir, the protagonist confesses that he has never truly loved anyone.
His wanderings in search of many women are, in reality, not an act of seeking “love,” but rather a desperate struggle to fill the void left by lost maternal love. Nevertheless, at one point, the protagonist reveals a desire to connect with others on a human level—through a single, cinematic experience or the hope of visiting a place where blue leaves swirl with an innocent maiden.
However, these hopes are thwarted by the guarantor Nopchi’s wariness, pretense, and hypocrisy; later, upon witnessing the rape of his innocent mistress, he once again severs his ties with human society.

“Sayō”—Decline and Dignity: A Portrait of the Postwar Generation

“Sayō” is a work depicting a crumbling aristocratic family and the consciousness of that era immediately following World War II. Kazuko, the daughter of a fallen aristocrat, leaves Tokyo because she can no longer make ends meet, but she is then confronted with the death of her mother—who never lost her noble character and beauty—and the ruinous choices made by her weak-willed younger brother, Naoji.
Left alone, Kazuko consoles herself with the thought that “human beings live for love and revolution” and begins a relationship with Uehara, her brother’s former literature teacher. Kazuko becomes pregnant with his child and, interpreting Uehara’s decadent attitude and drinking as a form of struggle, sets out to find a new life with her child.
‘Decline’ is also famous for the theory that it was written based on the diary of Dazai’s lover, Shizuko Fukuda. There are stories that the language in Kazuko’s letters within the text resembles that of Fukuda’s actual letters, and it is also said that the scene where they reunite at a bar in Tokyo is based on a true story. While Uehara is reminiscent of Dazai, it is reported that in reality, Dazai exchanged direct correspondence with Shizuko Fukuda—sending her affectionate replies on multiple occasions and summoning her via telegram to meet.
Published in 1947, ‘Sayō’ quickly became a bestseller thanks to its unique structure and restrained prose. Resonating with the postwar sense of nihilistic decline, it gave rise to the buzzword “Sayō-zoku” and is regarded as the most beautiful and magnificent of Dazai’s works, offering a glimpse into the author’s utopian aspirations.