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Armed Detective Agency, Port Mafia, and Special Division React to Dazai Osamu's Past by Umbrella_Girl_Creates
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
03 Oct 2025
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Four groups compete to get the reality-changing book. it just so happens Dazai gets to it first. As he tries to erase the book, he ends up creating a singularity. The same singularity BEAST! Dazai made, and now to escape an endless white room the groups must watch Dazai's dark past.
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I can't cope with the sad backstory I wrote as the fanfic "The Demon Prodigy-Origin". To process it I'm writing the reactions of people in order to not become depressed! -
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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.
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In her fifth transmigration, Amelia awakens as Dazai Osamu. The world sees a suicidal genius with a smile too sharp to trust, but beneath the bandages and theatrics lies a soul that’s lived—and lost—far too many times. As Dazai, Amelia navigates a landscape of politics, abilities, and a soulmate who loves (totally hates) to play by her rules.
Nobody warned Nakahara Chuuya, that the partner he was cursed to work with would become the soulmate he couldn’t shake. That the woman behind the smirk would wield not just nullification, but affection weaponized into chaos. She flirts like it’s warfare. She disappears like a ghost. She reappears just to ruin his day. And somehow, he keeps letting her. He wishes his soulmate came with an off switch.
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A curated collection of flashbacks from Amelia’s fifth transmigration—this time as Dazai Osamu, the insufferable Queen of Emotional Sabotage. In her fifth life, she was Shigaraki Tomura, and her soulmate was Keigo Takami—a clingy, golden retriever of a man who loved her through everything. Now? The tables have turned. As Dazai, she’s the annoying girlfriend, and Chuuya Nakahara is the poor bastard stuck with her.
Series
- Part 3 of The Echoes Between Bodies
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The light doesn't discriminate those who were tainted by the dark (ON HIATUS UNTIL END OF OCT) by Miysuki
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
20 Aug 2025
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"I heard you have yet another stray pup under your unofficial care. Quite a growing collection, Osamu."
His feet moved quick at the subtle threat hidden underneath the carefully crafted faux disinterest.
"Listen carefully, Mori-san, because I will only say this once." Dazai spoke the name like he was spitting out venom, but the poison had longed settled in his system. "If I see even a single strand of hair out of place on their heads- and believe you me I will know if it was your doing- I will raze the Port Mafia to the ground, I'll make you watch every single second and I won't care if Yokohama burns down along with it."
Ah. Maybe Dazai really has grown soft.
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A different take on how Dazai approaches Oda's dying words.
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momzai runs away with his kids and attempts to live a somewhat normal life
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Shame by frayedfernflakes
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
06 Aug 2025
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Dazai was an infection Class 1-A planned on keeping.
Shuji was another child lost in the dark, looking for the light.
The Demon Prodigy was a sheep in wolf's clothing.Japan is utterly and completely fucked.
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We've Crossed The Path of No Return.(Yet, I'll Always Come Back To You.) by Chuuyas_fan
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)
30 Jul 2025
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“Stupid slug, it obviously means we’re being sent to Masutafu to find out what those heroes and villains are planning.”
“…what?”
Or: Dazai and Chuuya get sent to Masutafu to infiltrate both UA High School and the League. Dazai; who’s sent to spy on UA students while also being an undercover villain. And Chuuya; a member of the League. Oh yeah, and Arahabaki’s sentient. AU CREDIT: Eni-Gxcha
Series
- Part 2 of MHA X BSD CROSSOVER
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Water May Be Sweeter But Blood Is Thicker by YunaYamiMouto
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
29 Jul 2025
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On a seemingly random day, Suribachi is shaken by a huge explosion. Except it's not random and suddenly the ADA was asked to bring out Ranpo to investigate some form of cultist massacre? Meanwhile, a woman walks into ADA and a man into PM and suddenly, Yokohama's in the middle of some serious family chaos. Dazai, as always, is somehow in the center of it all. Just another day in Yokohama!
Series
- Part 3 of Life Is A Book Of Endless Pages
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White, black and gray by Fork_melon_tea
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)
12 Jul 2025
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”That’s rare, school too much for the demon prodigy eh? You out of your league?” Chuuya smirks mentally filing the information away for him to give Dazai shit about later, ignoring the fact that he is probably in the same boat.
Dazai smiles tightly, looking like a disgruntled cat- a terrifying disgruntled cat, “Anyways, we can’t just ask for admission mid year.”
“Why.”
“That’s how schools work.”
“It’s dumb.”
“I know, I’m sure there’s a logical explanation for it.”
They wait, hoping the logical explanation would come soon. It doesn’t.
Or; soukoku at UA.
Working title : Dazai, chuuya, and the mortifying ordeal of finally acting their damn age. -
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There are some curiosities in this gigantic world. Well, some is even little to describe everything we don't know about this one. It was not surprising that at a certain moment things would explode. Not literally. However, when undead people began to appear in Japan, in Yokahama, any explosion was even a better solution than ending with humanity slowly. At least, that's what Japan, and the world, to a certain point, thought. Clearly, they forgot about geniuses and prodigies, soldiers and doctors, warriors and fighters. They forgot the fact that the mind can become someone's greatest weapon and that strength can never be underestimated. They forgot about Men who would become their own monsters to save whoever it was. In the middle of all their calculations and equations they forgot the existence of Osamu Dazai and Chuuya Nakahara. Not that we could blame them (actually we could). After all not even the greatest artist knows exactly the end of his painting.
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Chuuya is a well known Bounty Hunter. known for his merciless tactics. for 20 years he's shown no weakness to his craft. that was until he was given a bounty for a mischievous kitsune who was allegedly terrorizing towns.
this will have slow updates im sorry, i work and go to college :(
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His ability was gone.
And he should feel terrified.
And angry because she was touching him and he absolutely hated being touched.
But all he feels is relief.
Because for the first time in his life, he is utterly alone in his head.
There was no hissing.
No snarling.
No pounding headaches.
No god demanding he go terrorize a city because it’s bored.
Just him and his thoughts and nothing else.
Chuuya’s body went slack, like a weight had been lifted off him, and he sighed. “Feels good.”
There was a moment of silence and then, “I’m going to be honest here, didn’t expect you to be a pervert.”
Chuuya’s face immediately went red. “Wha –“ he trashed in her hold. “I’m not a pervert!”
The girl snorted. “Yeah, sure.” -
A Seal Doesn't Change its' Spots by FoxWithTwoTails
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
30 May 2025
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Dazai is only seven when he is taken from his home and has his pelt stolen. With Mori, the boss of the Port Mafia, holding his pelt there is little he can do but obey orders and wait for the chance to steal it back. Except, even if he does get his pelt back and escape to join the ADA, whose to say that an old partner might accidently get their hands on it. After all, why would Dazai tell an enemy just what he's holding, and that he doesn't enjoy the game of keep away? And there's no way someone would just give it back. Right?
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Dazai didn't know what he was doing, but he'd be damned if he let that stop him. For Oda, he tells himself. He's doing this for Oda.
He definitely isn't doing this for himself. He definitely isn't doing this to keep what little piece of Chuuya he had left.
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Soukoku Angst/Fluff fic
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I gave them a child, that's the basis, Dazai's a dad and Chuuya doesn't know he is one (for a while, at least)
Irregular updates, but not abandoned!Series
- Part 1 of Active Works
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Princesszai Kicks Ass(Mainly Mori’s) by Faelyn_FluffinCatsThoseAreMyLemons
Fandoms: Slay the Princess (Visual Novel), 文豪ストレイドッグス | Bungou Stray Dogs
05 Feb 2025
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This is a short one shot, that was a request from the Slay The Princess + BSD discord server. I decided to post it here. I might do more with this idea later, but it’s just this for now. This is based off and AU made by SebbyOGirl on YouTube. Technically it’s based off of a request she made in the discord server.
This is just a reaction of 3 Port Mafia Members -
Ghostwriters by imwalkinghere for Ryan_Sky
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs, 전지적 독자 시점 - 싱숑 | Omniscient Reader - Sing-Shong
22 Jan 2025
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Dazai Osamu thought his mission was over when he jumped off that roof, his goal of Odasaku being safe realized. But when he awakens in an empty Void- the Final Wall that all Stories return to- he realizes that something is horribly wrong.
As Fyodor, now possessing Atsushi as his Bookmark, threatens to unravel the fragile stability between the worlds Dazai fought so hard to create, and with Oda’s life in grave danger, Dazai does the unthinkable: he creates a singularity, ripping through the fabric of reality itself. In his desperation to find a way to save Oda and protect the multiverse, Dazai stumbles into a subway bound for nowhere, and there, amid the chaos of his own existence, he encounters someone entirely unexpected.
Kim Dokja, the Reader. The Oldest Dream. The only person who can overwrite their realities, yet is desperately clinging to the remnants of his own fractured narrative.
As the boundaries of reality blur, there’s one thing Dazai knows all too well: nothing in the multiverse happens by accident. Not even this meeting. And with the Book stuck in nefarious hands, the pair must decide if they’re going to be authors of their own fate- or pawns in a game they can’t control.
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Story Ideas, One Shots, and Headcanons by No_sleep_for_the_week
Fandoms: Teen Wolf (TV), Percy Jackson and the Olympians & Related Fandoms - All Media Types, Supernatural (TV 2005), One Piece (Anime & Manga), 文豪ストレイドッグス | Bungou Stray Dogs, The Umbrella Academy (TV), Batman - All Media Types, DCU
03 Jan 2025
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I have ideas that I think could be good stories but I don't like my writing or have motivation to write long well written stories. I'm going to put my ideas here and if someone want to take them somewhere the I would be happy to see where they go.
Ch 1 index
ch 2PJO head cannon about Poseidon kids
ch 3 Percy is Peters kid
ch 4 Stiles does weird/overpowered magic when sleep deprived
ch 6 Percy is Sam and Dean's oldest brother
ch 7 Stiles doesn't make it out of the basement alive
way more in side this just gives on idea
Ch 40 two different one piece ideas, the first one marine luffy with shanks and the second one is a pjo crossover with ghost percy
Ch 41 again two different one piece ideas, the first one the ra gets more member bc of luffy and the second is Dragon was the one to resque Luffy form the bluejam pirates and that end up with everyone esle thinking that Luffy was dead
Ch 42 Op ghost au, Luffy and about half of the other strawhats are ghost
CH 43 MHA and PJO crossover percy is pretty offended about their hero society
Ch 52 tua klaus is the veil made human
ch 58 demon slayer -
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Kunikida is forced to play God
Or a take on maybe how Kunikida really discovered the 'limitations' of his ability.
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Dazai was a god. He was Death Incarnate, the Demon prodigy, unable to experience the relief of death the souls he collects. But when he encounters a fiery redhead on a mission, he cannot help but feel like the rest of his godhood could be livelier than ever.
A god of death!Dazai/god of destruction!chuuya fic
(DISCONTINUED)
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After another successful mission, Dazai and Chuuya are abducted. They’re taken by a group of scientists that are trying to figure out the secrets of abilities.
Series
- Part 26 of Whumptober 2024
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Out of Soukoku, Chuuya had the more obvious workaholic work ethic but after a careless comparison from Kunikida, the most devastating switch in Yokohama history happened. Mori is both the happiest and the most miserable for it. Chuuya just gets a vacation.