1 - 20 of 189 Works in Sigma-centric (Bungou Stray Dogs)
Navigation
Listing Works
-
Tags
Summary
Sigma has taken care of many littles in their 3 years of living, only at the expense of their own age regression. Yosano and Kouyou realize what they do for others and manage to get them to regress.
-
Tags
Summary
Dazai is the boss of the Port Mafia. Sigma becomes one of its members.
Two lost souls meet.
- Language:
- English
- Words:
- 370
- Chapters:
- 1/?
- Kudos:
- 3
- Hits:
- 18
-
Tags
Summary
Nikolai is so down bad horny....
He wants to free his dick so badly
.
.
.
He knows who to do it with :3- Language:
- English
- Words:
- 840
- Chapters:
- 1/1
- Kudos:
- 6
- Hits:
- 258
-
Three Rats Make A Good Team by Ronnie_Drowning
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)
02 Sep 2025
Tags
Summary
Who would have thought Fyodor was insane enough to make not just Sigma and Nikolai but also himself go to the world of the hero’s. A place a terrorist trio was bound to cause trouble in. Yet giving two the roles of teachers? A whole new level of what a man of high intelligence could even discover.
Sigma didn’t want to leave. He just couldn’t, the casino was his home. And mingling with hero’s who would arrest him on the spot if his past came to light. A dangerous game. One he never wanted to play.
-
Tags
Summary
The ruins of Sky Kingdom were still smoldering.
A figure dressed in long white silks wandered aimlessly through the twisted wreckage warped by the lethal caress of flames that had died down to pulsating embers long ago. Flurries of ashes filled the air, drifting lazily toward the ground like phantom snowflakes.
The figure paused for a moment and turned around, surveying the crumbled heaps that were once buildings with a patient smile on his face, purple eyes glimmering faintly in the firelight.
“Beautiful, isn’t it?”
[Kingdom/Royalty AU in which Sigma is kept as Fyodor and Nikolai's war trophy.]
-
Tags
Summary
“Just what does Atsushi think he’s doing?!”
“Oh, I know this one Kunikida!” Kenji leaps up, hand in the air like an excited kid in a classroom, “He’s shopping for a wedding suit!”
A.. a what? Sigma looks around in disbelief, and finds a similar look of shock to his on his co-worker’s faces.
OR: Armed detective Agency finds out Atsushi is getting married. Cue a massive debate on whether he’s marrying Lucy or Akutagawa. ( Spoiler alert: he’s marrying both of them. )
Series
- Part 1 of Aadhi’s Rarepair marriage reveals
-
diamonds in the dark in your old bedroom by sonyswings
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
24 Aug 2025
Tags
Summary
“Dazai, what?” they whisper without meaning to, as their eyes take in a sky that is starrier than they ever remember seeing, despite the itch at the back of their mind telling them otherwise. “Is this—”
“You always say you miss the stars,” Dazai shrugs, not meeting their eyes, as if now he wants to act shy and pretend he didn’t do something so nice for someone. For Sigma.
or, dazai finds sigma in the desert. this changes some things
written for BSD Rarepair Fest 2025 day one: "Do you trust me?"
Series
-
Tags
Summary
Fyodor dies in front of Nikolai who out of grief and fear of loneliness (not like he would admit that) takes Sigma with himself.
The Agency takes care of the Mersault and Fyodor aftermath, but Sigma is in coma for way too long - and when he wakes up, he confronts a civilian Nikolai about his decision: he wants to join the Agency.ABANDONED for now, see the last chapter's notes.
-
Tags
Summary
Sigma's brain slowly starts feeling fuzzy, their last coherent thought being "I was drugged" before they black out.
AKA Sigma gets kidnapped, Fyodor and Nikolai freak TF out.
(This is Sigma's POV for most of it btw)
-
Go On Your Knees (and pay attention to me) by utilitycloset
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
12 Aug 2025
Tags
Summary
Fyodor and Sigma have recently got together and started to live together. What could happen after a week?
-
Tags
Summary
Sigma hums lazily as he cleans the blood from his hands. Nikolai knows he’s been taking bigger and bigger pieces of information with his ability since they left Yokohama. Nakahara was the beginning of the end for Sigma, every question after that not being one which filters information but one that encompasses everything.
Tell me everything you know about Fyodor Dostoyevsky.
Tell me everything about the shipments from St. Petersburg to Moscow.
Tell me everything…
Idly, Nikolai wonders how much more information Sigma can stuff in his head before he starts to get squeezed out bit by bit. More importantly, he wonders who will take over when every piece of Sigma has been chipped away by someone else. Will it be Fedya? Or will it be Dazai? Perhaps Nakahara and him will share the same skin?
Either way, when it happens, Nikolai will be there to unwind the fibers of his being and weave him back into something better than before.
Or, While Fyodor and the Agency look for the Book, Sigma and Nikolai go hunting
Series
- Part 2 of Benevolent Design
-
Tags
Summary
It’s Sigma’s first day at the ada and it’s also his first time seeing atsushi after he fell off the sky casino
Or
Atsushi thinks sigma is dead, and sigma’s it’s first day at his new job -
Tags
Summary
Sigma is lonely, tired. All the works. He needs a break. He tries for one. It fails.
(How tf do I summarize help)
Featuring Sskk ><
Series
- Part 2 of Bsd oneshots!//Bsd Au oneshots!
-
I Must Become the Monster (And Then He’ll Make It Home) by BuryYourDoves
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
09 Aug 2025
Tags
Summary
The phone goes blank as the call ends, and Sigma’s legs collapse underneath him. He crashes to his hands and knees, fingers curling on the hardwood as he hyperventilates. How? How could this happen? He was so careful. Even Atsushi doesn’t know his real name, all his papers have his new identity, god, he’s not even on the same continent anymore.
He must’ve gotten careless. He’d gotten so comfortable in his safe, normal life with Atsushi, he must’ve relaxed too much. Stopped watching over his shoulder at every moment. For a wonderful, peaceful moment, he let himself believe he could just be Sigma Ivanov: florist, boyfriend, and experienced shower-singer.
But Albert Camus’ sins will haunt him forever.
-
splint-legged horse & the moldy carrot by skydepot
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
09 Aug 2025
Tags
Summary
Sigma, after the fall of the Decay of Angels and the loss of their home above the clouds, joins the ADA. It is not the miraculous fix-all they hoped for. They are still sick and they are still scared. They do not improve.
Featuring a dying horse that haunts Sigma when their eyes are closed and when they aren't, lab results they aren't sure they should have ordered, a forced week of paid leave, dead dreams and someone who should have died on impact.
-
Tags
Summary
In the year 1963, there were two deaths in the Meursault School of Arts and Letters.
Here is a depiction of the situation as recounted by one of the people involved.
Series
- Part 7 of battleship 2025
-
Tags
Summary
The clown giggles, “oh you dirty, dirty bastard…” he coughs, a little bit of warm blood trickling down his soft pink lips. A soft kiss is placed on them, before he collapses into the other’s arms. “You loved me…” the clown mumbled. “And that was my biggest crime,” the other finishes, ruffling his hair gently and watching the flames flicker around them. A symbol of their destructive love that he had to stop. He laid the clown down in the fire he created, watching him burn.
-
A Prince, a Knight, and a Princess in between by sky_cas1no_regular, xPitki
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs
26 Jul 2025
Tags
Summary
“Someone’s trying to steal my girl. That’s what’s up. And he acts like he isn’t doing it.”
“Up your game, then. Make sure he finds out you are in the picture. I thought your ’rizz’ as you call it was unmatchable. Make your move, show him.”
“Oh, I’ll show him. You bet I’ll up my game,” Nikolai said and slammed his hand on the table.
“But that’s tomorrow’s problem. Try to enjoy the concert you dragged me to. Bros before hoes, remember? They’ll be starting any minute.”
“Well, this ’hoe’ is before you, bro. Whether you like it or not,” Nikolai hissed to the side. If the bar didn’t just lower their music, Fyodor wouldn’t hear a thing. Not to lie, he was offended. What was so special about her, anyway, that Nikolai would put her above him in a span of about one to two weeks?
In which Fyodor and Nikolai, best buddies for years, go to college and both find out they are talking to the same girl, said girl being Sigma. Luckily for her, both are mad at each other, and continue chasing after her all until something unexpectedly gay happens… (In translation, some kind of a love triangle).
-
Sigma valley (stardew valley x bsd au) by LucazwuzHere
Fandoms: 文豪ストレイドッグス | Bungou Stray Dogs, Stardew Valley (Video Game)
25 Jul 2025
Tags
Summary
Sigma worked day and night, barely getting any sleep. He hated his job and one day, after reading a letter given to him by his grandfather, moved to a small town named Stardew Valley.
nvm no update soon this is on break (IM SORRY I EXPLAINED WHY I CANT UPDATE A LOT IN MY OTHER FIC)
(Oh also this is inspired by Tales of canary town, its a life series x stardew valley fic and its pretty good, u should read it)
-
Tags
Summary
Sigma was sent away from the Decay Of Angels, since he wasn't using his ability to the wellbeing of the team. Despite his pleads, they attempted to drown him. Fortunately an 18 year old tiger boy saw him, and saved him. That actions inspired two things, Sigma to be a new man, and nikolai to need a new man for the team.
Sigma wants to save atsushi from the terror of the doa, but with burdens and mysteries and other organisations. Can he actually do it? Or will he back down when things get tough.
(Why'd I write that like a weird author for kids)