1 - 20 of 77 Works in Traumatized Dazai Osamu (Bungou Stray Dogs)
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Leaving the mafia had been Osamu Dazai’s number one priority—after his best friend died telling to do so, and of course, he defects only a few days after that. Dazai’s almost proud of himself, until he gets trapped in a cruel twist of fate: taking care of a baby and being on the run from the mafia. That kind of life gets easy with a year or two—but when it’s time to come out of hiding and advance to the frontlines, he has reached the point of utter ruin. It can’t get any worse than this, right?
That was, until Chuuya Nakahara, his former partner, and the father of his child found out, creating a new array of unresolved problems and oh so much tension between them. If there’s a word for ‘worse than exes but still love each other and pining for each other so much it’s inhumane’, he desperately wants to know. It really cannot get worse from this point.
Until all his secrets come tumbling down and he gets exposed for who he truly is.
[I’ve made a mistake, and I’d like your input on it. Info: endnotes chapter 4. I’M SO SORRY. :(]
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Stranger in a familiar land by Fromtheabusementpark
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs, Batman - All Media Types, DCU
19 Oct 2025
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Dazai gets thrown into another world by two ability users, now he has to find a way back. However, he has no clue what this world has to offer and has captured the attention of a Furry cult. How will he take advantage of this situation and get back to Yokohama?
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One single thread of gold (tying me to you) by Writing_Bumblebee
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
12 Oct 2025
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“Open up!”
“I'm naked!” He bit his tongue right away. He shouldn't have confirmed somebody was inside.
“I don't give a shit! This is the Fire Department! There's a fucking fire in the building!”
“I'm okay!” He tried. “I'll come out shortly! You go ahead!”
“What the hell?!”
“I promise!”
“I can't believe it!” He heard noises outside, the same person cursing loudly. “Tachihara! The axe!”
What the fuck?!(Or: Dazai has done everything he can to avoid meeting his soulmate. The Universe doesn't agree. Enter Chuuya, the fireman that saved him.)
Series
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Summary
- Inspired by "Little Death" by The Neighbourhood -
Chuuya makes Dazai feels alive and Dazai makes Chuuya feel human.
Series
- Part 1 of Soukoku
- Language:
- English
- Words:
- 612
- Chapters:
- 1/2
- Kudos:
- 1
- Hits:
- 33
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Blood & Bonds by rxchelle90 for Princesszeldaprincess
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
02 Sep 2025
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In a reversed Beast AU, Alpha Boss Chuuya and his Omega mate Dazai rule the Port Mafia together, bound by marriage and expecting a child. Their happiness shatters when an intruder breaks into their home and attempts to assault Dazai while Chuuya is away. Dazai fights but is overwhelmed, only for Chuuya to arrive in time to kill the attacker in a bloody rage. Though physically safe, Dazai withdraws afterward, consumed by fear and guilt, while Chuuya blames himself for failing to protect him. Their bond strains under grief until one night Dazai breaks down, confessing his despair, and Chuuya vows to never fail him or their child again. Months later, their baby is born, and though scarred by the tragedy, they heal together—stronger, bound by love, and at peace in their family
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It’s been two months, three weeks and eight days when he makes his first mistake. It was inevitable. He was almost expecting it, waiting until he eventually fucked up like he always does.
He's been burned way too many times to expect the heat.
Or
Dazai messes up on one of his missins and Fukuzawa reminds him he's not under Mori's mercy anymore.
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If anyone was in the office with Dazai at this moment, there was no doubt they would shiver at the unnatural smile that stretched his face into something near inhuman.
“This is going to be so much fun.”****
“I have unfinished business to attend to," he murmured, his voice distant, and Chuuya felt a chill seep through him as that dark eye stared off into the distance.
As unsettling as the expression was, what truly stopped Chuuya's heart was the soft, almost tender smile that Dazai gave him when his gaze finally met Chuuya’s own.
“And then I’ll die.”
****
OR: Alternate universe where Dazai never left the Port Mafia. After Chuuya’s life is endangered, he decides it’s time for the Port Mafia to be placed under his own highly capable hands.
Dazai and Chuuya fawning over each other without even realizing and basically adopting Kyouka in the process.
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A Kid And A teacher Walk Into A Bar by Mygirlmm
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)
25 Aug 2025
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What happens when Aizawa Shouta walks into a bar at 2-3 in the morning, just to find Dazai sitting there, drunk?
What happens when it turns out Dazai is convinced he's being kidnapped when Aizawa is just trying to help the kid?
What happens when Dazai somehow knocks out Aizawa and texts Chuuya saying he's been kidnapped?
What should Aizawa do now that he has the (unknown to him) Double Black team of the Port Mafia in his small apartment? One passed out on his couch, the other looking like he wanted to recommend some cleaning services?
And the last question: HOW IS IT ONLY TUESDAY??Update: It is now Wednesday, and these kids are apparently teenaged mafiosos?? Dazai's an executive?? THEY'RE PART OF DOUBLE BLACK?! How am I not dead??
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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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Mafia Magic (Rewrite) by Anime_Fan2023
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs, Harry Potter - J. K. Rowling
13 Aug 2025
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Summary
Dazai Osamu is sent on a mission to Hogwarts with little to no information on why, how will it play out.
VERY out of character
I am not a reliable author
This is a rewrite yet i still have basically no planSeries
- Part 2 of Dazai vs Hogwarts, who will win?
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Osamu Dazai is a famous solo artist who never does collabs.
Chuuya Nakahara is an equally famous actor who couldn’t imagine her life any other way.
But there was a time…
// Only rated T because Dazai’s inner monologue is super depressing
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Fukuzawa was a fool to measure them side by side. Both were broken children clawing through the wreckage of themselves, worn raw and hollowed out. What they needed wasn’t judgement or answers, but something far simpler: a place to bleed quietly, a hand to hold before everything shattered again.
He pulled them in—Yosano, Dazai—both too spent to resist, too shattered to fight back.
From the shadows, Ranpo’s smile was the only promise: maybe this ruin could become something else. Maybe it wasn’t the end.
Series
- Part 19 of The Armed Detective Agency 🕵🔫
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Dazai and Kyouka walk parallel roads—each shaped by loss, drawn into the Port Mafia with no will to live, only a willingness to die. He asked a doctor to end it painlessly; she asked a killer to do it quickly. Neither were beaten, but both were bound—raised in silence by hands that taught them how to survive, not how to feel.
And still, they stepped away from the darkness.
He lost a friend who believed in light. She met a boy who didn’t flinch at her bloodstained past. Redemption wasn’t offered—it was carved, chosen, stumbled toward. Dazai watched her, saw the reflection. Kyouka watched him, saw the echo.
They are not the same, but they understand the same ache.
And sometimes, that’s enough. -
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It took Chuuya about six hours to get to the top of Mount Omaru safely. Why was he climbing the 156 metre tall mountain.
To kidnap the youngest son of the Tsushima family– The golden boy who was inevitably going to be forced into the Port Mafia by the family, being the only one of the siblings with a special ability.
What led Chuuya to this point was slightly confusing.
OR,
Arahabaki leads Chuuya into recruiting Dazai into the sheep and shit goes down. Peace✌️ -
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Summary
Mori restrains Dazai under the suspicion of a traitor in the Mafia. Kouyou and Chuuya are questioning his decision.
(Dazai is drugged out of his mind.)
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Mafia Magic by Anime_Fan2023
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs, Harry Potter - J. K. Rowling
04 Jul 2025
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Dazai has to go to Hogwarts for a mission, That's really all this is. it's my AU though so...
Series
- Part 1 of Dazai vs Hogwarts, who will win?
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The chronicles of Akitsushima by Writing_Bumblebee
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
22 Jun 2025
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Summary
“Looking for something?”
He raised his eyes, and found the creature' smile. It felt wrong, out of place on his triangular face.
It was lying on a branch, and its whiskers twitched while it stared down at him.
“Yes,” he answered. “You.”
The creature' smirk widened, eyes squinting in crescents.
“Well then,” it slowly got up and stretched its front legs, its sharp nails digging into the bark. “This might just get interesting.”
(Or, sorcerer!Chuuya and Dazai fight curses, evil organisations and people from their past out for their blood, and still manage to find themselves in the midst of it all.)
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Echoes of Shadows: A Whisper Between Broken Souls by rxchelle90
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
19 Jun 2025
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Trapped alone in a cold, unforgiving prison cell, Kyouka wrestles with the weight of her past—the thirty-five lives she has taken and the crushing belief that she is no longer human. Through a crackling listening device, Dazai’s voice reaches her like a fragile lifeline, reminding her that they share more in common than she realizes: both burdened by loss, guilt, and a readiness to die. As Dazai speaks softly of hope and redemption, Atsushi approaches from the shadows, coming to rescue her. In this moment of shared pain and tentative light, Kyouka begins to glimpse a path beyond the darkness that has long consumed her.
- Language:
- English
- Words:
- 615
- Chapters:
- 1/1
- Kudos:
- 2
- Hits:
- 24
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Summary
“Dazai hasn’t said a word since the ability activated.”
Chuuya’s blood ran cold. He returned his gaze to the miniature Dazai, and felt his chest clench.
Even though he had to be terrified, Dazai sat stiffly on Naomi’s lap. His face showed no fear, just a blank stare that was all too familiar to Chuuya. He looked like a lifeless doll with no agency of its own.
“Dazai, do you know who I am?” Chuuya asked, keeping his voice even.
OR Chuuya gets hit by an ability, turning Dazai into a baby & leaving Chuuya to take care of him
Series
- Part 1 of babyzai
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Summary
It all began when the young Dazai Osamu — constantly basking in an immense, heinous sea of dread and bitterness — yet again tried to put to an eternal halt his never-ending misery only for his attempt to get, once again, shattered by the cocky ginger Chuuya Nakahara, none but Dazai's new, unexpected partner-in-crime. Just after then, things will slowly begin to take on a rather peculiar turn…
Just to clarify: this is an AU, 'cause I can't be bothered to follow the flow of the actual plot. With that being said, I hope you will enjoy anyway!