1 - 20 of 34 Works in Genius Dazai Osamu (Bungou Stray Dogs)
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It begins on Chuuya’s sixteenth birthday—the first anniversary of his life in the Port Mafia—when Kouyou appears at his door and gifts him a heart-shaped jar.
It ends in silence: an empty apartment, shattered glass, and the absence of Dazai Osamu.
But what Chuuya doesn’t know is that it will all begin again.
The one where Chuuya receives a jar, throws people across rooms, falls in love, gets propositioned, and cross-dresses—though not necessarily in that order.
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When a little girl had to be saved by Sukouku and yosano because of her ability, she was promised having a friend her age, not grown ups. Not to be rude, grown ups are cool, and they took her from the polititians that wanted Liang to see them as "family" and got angry when she didn't. So she's happy to be safe, but still... Liang never would've thought that sukouku were in love with each other, much less that the affected one had a double indentity nor that she would've make trouble to the short redhead.
All by Liang turning his "partner" by accident, into a kid too, only because she wanted a playdate with chuuya's soulmate! Now Dazai Osamu is the new toddler. Literally. Chuuya, along with some mafia members like akutagawa and kouyou, and the ADA are the caretakers of these two gremlins. Kunikida is developing more grey hairs. Shin sukouku are learning more about their mentor than they thought they ever wanted; The gossip trio is missing their little brother. Fukuzawa is exhausted of protecting mini dazai from an excited Mori, working with hirotsu, who somehow is one of the few people baby dazai seem at ease with.
Also, Dazai's biological family appears, and they're not Dazais as common believe appears too. -
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“You’ll be paired off,” the teacher announced. “Two nights, one hotel, full immersion. Teams are random.”
The room buzzed with groans and whispers as names were read aloud.
Then—
“Chuuya Nakahara. Dazai Osamu.”
Dazai’s pulse spiked. Fate, it seemed, had finally intervened.
Two rows away, Chuuya frowned. “Who?”
Dazai raised his hand, lips curved. “That’d be me.”
For the first time, Chuuya Nakahara—the boy Dazai had worshipped from afar—was looking right at him.
Or:
Dazai has a crush—no, an obsession—with the most popular boy in school, Chuuya Nakahara. The problem? Chuuya doesn’t even know he exists. That is, until they’re paired together for a weekend-long science competition and forced to share a hotel room. From that moment on, Dazai’s carefully constructed world begins to unravel.
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The Flame and the Crown: A Marriage of Politics and Rage by rxchelle90
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
19 Oct 2025
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Chuuya Nakahara, heir to the prestigious Ozaki family, finds himself caught in a world of political intrigue and personal turmoil. Known for his fiery temperament and complex past, Chuuya is thrust into an arranged marriage with Crown Prince Dazai Osamu, a union meant to solidify political alliances. As Chuuya struggles with the pressure of his family’s expectations, he faces mounting tensions within the Ozaki household, where his mother’s legacy and his estranged father’s absence cast long shadows. Navigating power struggles, societal expectations, and his own unresolved emotions, Chuuya is determined to confront the Crown Prince and the fate that awaits him. But as he steps into the night toward his future, dark secrets and a growing sense of unease threaten to unravel everything.
Series
- Part 3 of BSD Lovers 💕💌💕
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The shadow over Hogwarts by Veronixxxxxxxxx for Allegory_for_Hatred
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs, Harry Potter - J. K. Rowling
21 Sep 2025
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Dazai's eye twitched. Even dogs didn't irritate him as much as his upcoming mission. After thinking for a bit, Dazai was about to throw his new letter into the nearest trash can, but remembering what Mori could do with it, he abandoned this idea. Maybe just commit suicide?
"Very interesting." Albus broke off a tiny piece of melted chocolate and raised it thoughtfully to his mouth. "Young Osamu Dazai... The Demon Prodigy of the Port Mafia. The Child of Darkness with the Death Mark in his eye. I want to know what Mori wanted from me."
Dumbledore clearly knows something."And thirdly," Snape leaned forward across the table, his whisper turning venomous, "you stop this stupid act. With me. You are not the awkward newbie you pretend to be.
The action takes place in the fifth year of study at Hogwarts.
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19th Century Japan's seas are filled with storms, pirates, and men seeking for something greater than adventure.
Dazai Osamu, the adopted heir of a noble house, joins the navy in a reckless attempt to outrun his own emptiness and fulfill an old friend's dream. Chuuya Nakhara, captain of a notorious pirate crew, has ruled the waves since childhood-- but he remembers nothing before the wreck that left him stranded on a storm-torn coast as a young boy.
When fate throws them together, they discover the sea isn't their only enemy. They find themselves torn between duty and desire, law and lawlessness, love and loyalty to the sides they're supposed to keep.
AKA: Pirate Chuuya vs Navy Dazai, enemies to lovers slow burn
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Whispers from the Hero’s Graveyard by BrutallyDazai
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
21 Aug 2025
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During a crucial raid into Yokohamas boarders, into a Port Mafia owned factory, the Hero’s happen upon two seemingly traumatized teenagers being held captive there.
They rescue them and bring them back to UA with them, giving them a chance at a life.
Little did they know, that was their plan all along.
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How to Hide a Body (and a Past) in Hero School by quinntowerz
Fandoms: 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga), 文豪ストレイドッグス | Bungou Stray Dogs
17 Aug 2025
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Dazai thought he’d be dead by Friday.
Instead, he’s enrolling in high school. With Chuuya.Mori’s newest stroke of genius? Send the mafia’s most explosive couple undercover at U.A. High to investigate why heroes keep poking around Yokohama. Dazai thinks it’s a waste of time. Chuuya thinks it’s a violation of his dignity. Neither of them is ready for morning announcements, group projects, or being surrounded by teenagers who think punching robots makes them morally superior.
They’re supposed to keep a low profile.
So naturally, their first day ends with three broken windows, a student in therapy, and Chuuya threatening a 15-year-old with a paperweight.But hey—at least they haven’t killed each other. Yet.
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Chuuya Nakahara had eliminated warlords, cartel leaders, and arms dealers who ruled empires with bloodstained hands. He was precise, merciless, and notoriously effective. When he was commissioned to take out the elusive head of the Port Mafia—the man whispered about in syndicate circles as a phantom king who ruled the criminal underworld with quiet omnipotence—he didn’t flinch. Another ghost to put down. Another name to cross off.
His sources were never wrong. His intel, never faulty. Every step was mapped. Every variable, accounted for.
So imagine his surprise when the infamous "demon" of the Port Mafia turned out to be a lanky college student, slouched under the awning of a vending machine with a can of coffee in hand, sleeves too long, and a tired smile curling the corner of his lips.
No entourage. No guards. Just messy hair, glazed eyes, and an aura that didn’t scream killer—but something far worse.
And God help him, Chuuya thought, staring from across the courtyard with a twitch in his jaw—
He’s pretty.
Series
- Part 20 of Dark Love ⛓💔
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They're Chuuya and Dazai, chaotic and mismatched.
They're Soukoku, feared and untouchable.
But somewhere in between—somewhere in the spaces where thunder lives and gods sleep—they are something more.
They are love forged in blood.
They are loyalty born of betrayal.
They are unrivalled.
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God Was Singing by Hum My Name (My_Kind_of_Crazy)
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
31 Jul 2025
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Dazai tilts his head, his gaze unnervingly intent. “And why do you care? Do you hate my music— or do you hate that I play it better than you?”
“What I hate,” Fyodor hisses, “is that you have disguised your arrogance as brilliance. You waste a gift that was made to be worshipped.”
Dazai’s expression shifts, his eyes gleaming with something that sends a shiver down Fyodor’s spine.
“And if I followed your words— played to please you, earn your favor,” he murmurs, stepping close enough to feel the warmth of his breath, “would you worship me, Fyodor?”
<>
Amadeus Fyozai AU, oh my! Fyodor and Dazai are rival composers in Vienna, and it gets way more intense than it has any right to.
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"Good morning, everyone~" Dazai chirped as he walked through the ADA doors. He stopped for a moment on the threshold, fully prepared to fend off an infuriated Kunikida, but... the man seemed not to have noticed him arrive, sitting at his desk and typing away only 3% more furiously than he did on days when Dazai decided not to annoy him - in other words, when Dazai didn't show up to work. Which was 447% less than he would usually be on mornings when Dazai was as late as he was now. Hm.
OR
19th June
Why is everyone in the ADA suddenly being... nice to Dazai? Or, to use a better word... Appreciative?
Series
- Part 2 of If All Was Well
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Just The Two Of Us (We Can Make It If We Try) by Fyozai4eva_Vanoe
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs, 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
05 May 2025
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In a world where Yokohama was separated from Japan many years ago by a barrier, Chuuya Nakahara and Osamu Dazai never once thought they would have to be propelled into a world of heroes and villains. Especially not UA High, the prized jewel of hero society.
But now, sent on an infiltration mission under the pretense of finding information, they might just have to face the world of black and white head on.
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Chuuya and Dazai get sent to infiltrate UA High School to gather information. But is there another, more mysterious reason for this mission?
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Ranpo was invited to attend a clandestine meeting of geniuses on Saturday.
He witnessed the world's most dangerous alliance that night.
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Los juegos de la mente son retorcidos by 8Maria8
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
24 Apr 2025
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Ranpo fue invitado a asistir a una reunión clandestina de genios el sábado
Fue testigo de la alianza más peligrosa del mundo esa noche
- Language:
- Español
- Words:
- 639
- Chapters:
- 1/1
- Kudos:
- 5
- Hits:
- 44
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The Art of Seduction and Masks: A Lesson in Control, Deception, and the Parasitic Nature of Love by rxchelle90
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
23 Mar 2025
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Under Mori Ougai’s tutelage, a young Dazai Osamu learns the art of seduction, manipulation, and control. Mori teaches him that love is not real—it is a parasite, a means of survival that thrives on deception. Through carefully crafted lessons, Dazai masters the use of masks, the patience of the hunt, and the slow consumption of those who fall for his charm. As he grows, he becomes a perfect predator, making people love him only to drain them dry. In the end, he realizes the truth: love is destruction, and he has become its most skilled executioner.
Series
- Part 5 of The Port Mafia 🩸☠
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A Deal with Darkness Beneath the Noose by I_am_just_a_girl
Fandoms: All For The Game - Nora Sakavic, 文豪ストレイドッグス | Bungou Stray Dogs
21 Mar 2025
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What if Dazai was interested in Exy?
Dazai had just finished his report and was in Mori's office. "Since you did so well on your last mission, how about I give you a reward?" Mori responded after thinking in silence for a few seconds. "I will try to send you on missions less frequently and you can take up a hobby. I'll give you some time to decide what hobby, activity, or sport you want to try out, and then you can let me know so I can get you the resources you will need to grow your developing passion." Mori paused for a second. "You might even find something worth living for." He then said with a teasing tone.
Dazai stared back at him with a blank facial expression, then pouted. "You know that won't happen, but I guess I'll tell you if anything catches my eye." Dazai then swiftly left Mori's office.
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And I don’t think the world’s sold (On doing what we’re told) by mysicVentity
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
21 Mar 2025
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Dazai finds out about the Guild's plan and is unimpressed.
So naturally he assembles a group of geniuses to blackmail the richest person in the world.
Series
- Part 3 of CrissCross
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“I saw that heart you left in my notepad yesterday.” Chuuya huffs.
“So…don’t act like I confessed first or anything.”or
Math Major Chuuya is not an idiot, but he sure feels like one in his Complex Analysis class. Just when he thinks he can't be humiliated any more, his tyrannical professor asks Dazai Osamu, the math genius and unattainable omega, of all people, to tutor him. As it turns out, Chuuya is not as unaffected by his charme as he thought he was.
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Through The Veil by kira18
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs, Harry Potter - J. K. Rowling
15 Feb 2025
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Dazai really doesn't know what he did in a past life to deserve this, maybe it had more to do with what he was doing in this life, but getting sent on a mission across the world hadn't been on his bucket list. With his magical powers growing dangerously volatile, Dazai's journey intertwines with Harry Potter's fifth year, blending dark intrigue with the magical upheaval of Voldemort's return. Amidst spells, secrets, and new alliances, Dazai's shadowy past and uncertain future converge.
Will Dazai survive his mission at Hogwarts? He sure hoped not, anyway...
He figured that at least, this way, he'd get a vacation from the port-Mafia and specifically Mori, for a while.