Sigmafan fiction

Character · 8,225 works

Sigma turns up in 25 works open to everyone here. The average one runs about 15,900 words. Read any of them in your browser, save it as an EPUB, or listen to it.

Works

Some results are potentially explicit

Bungou Stray Dogs

dandelion eyes

by orphan_account

Sigma just rolls his eyes, “You have to tell me why you’re asking me to lie. Is it so you can sneak off with your sugar daddy from the Port Mafia?” Atsushi feels like his blood is slowly draining from his face. “My.. My what?” or, everybody gets the wrong idea about akutagawa and atsushi.

General 1.7k words 1 ch Complete 777 kudos

Armed Detective Agency Member Sigma (Bungou Stray Dogs) · Comedy · Domestic Fluff · Fluff· +6 more

Bungou Stray Dogs

where the heart is

by astraltrain

The first piece of bad news that Sigma receives after being told they passed their entrance exam into the agency is the lack of space that these people are given to work with. - Sigma is made to share a dorm with Dazai, which is really the worst case scenario for him. Being in the agency is altogether not what he wanted for his future. But with Dostoyevsky on the loose, there's nothing more he can do, so he supposes he'll have to get over his strange feelings for the detective and deal with it until he can leave. Or try to, at least.

General 35k words 1 ch Complete 681 kudos

Slow Burn · Armed Detective Agency Member Sigma (Bungou Stray Dogs) · Sigma-centric (Bungou Stray Dogs) · First Kiss· +18 more

Bungou Stray Dogs+1

Sigmas Not So Good

by Foreteller_Xarym

Sigma was fine with his current routine. Manage the Sky Casino, endure Nikolai’s bugging, and bend over backwards attempting to understand Fyodor’s cryptic half-answers.But when he’s assigned on a mission to go undercover as a UA teacher, surrounded by Quirked people, for unknown reasons other than to “treat it as a vacation” (Nikolai’s words), can Sigma really be fine?Especially when the ADA and Port Mafia come knocking on his door?————AKA. The Sigma centric crossover fic i’ve been dying to see in the fandom but had to write it myself![Please read the tags, they will update almost constantly with each chapter!](updates bi-weekly!)

General 20k words 7 / ? ch In progress 628 kudos

Sigma-centric (Bungou Stray Dogs) · Crossover · Crossovers & Fandom Fusions · Sigma is So Done (Bungou Stray Dogs)· +16 more

Bungou Stray Dogs

And They Were Roommates

by thecrazychatlady

Sigma has only ever existed for the Decay of Angels. And when that organization is gone, he has to learn to exist for something else. That's a big enough task on its own, though, so Sigma starts by finding someplace to stay. Except he's broke, so he needs a roommate. And guess who just got kicked out of the company dorms for "frequent disruptions" (read: breaking a beam after trying to do himself in)? -- “I’m home,” he murmured quietly, and took off his shoes. He wandered into the living room to see Dazai, a smirk on his face that Sigma identified as Dazai’s “I’m taking the piss” expression. In front of him, his posture screaming annoyance and his clothes screaming wealth, was a short man wearing his hat indoors for some reason.“Listen,” the man was saying, electric blue eyes narrowed in anger. “I’m not letting you subject anyone else to your particular brand of bullshit.”“So possessive,” Dazai swooned, his hands flying to his face in a mimicry of embarrassment. “Does the chibi want me all to himself?”

General 13k words 1 ch Complete 620 kudos

Angst · Comedy · Dazai-Typical Suicide Mentions (Bungou Stray Dogs) · Happy Ending· +12 more

Bungou Stray Dogs

someones gonna lead you

by calysland

Sigma was surprised as to why they were still alive, why they were not in jail and why they were getting dragged around by Dazai after escaping Meursault.Realizing the cafe they were in was in the same building as the Armed Detective Agency, a lamp lighted above their head, and suddenly they were offered a job, a home, a new life there.The office was warm, Dazai was not Dostoyevsky and they were face to face with the very first person who showed them kindness once again.♧or; dazai, sigma, the ada, meaning of home and atsushi.

General 7.3k words 1 ch Complete 600 kudos

Post-Canon · written after chapter 106.5 · Found Family · Armed Detective Agency as Family (Bungou Stray Dogs)· +17 more

Bungou Stray Dogs+1

Win Lose or Die

by Sorceress_Circe

Sigma knew something terrible was on the horizon, and was determined to fight it off for the sake of Japan. Yokohama could handle it, but the rest of the nation?The League of Villains had tried to take over the Port Mafia with successful results, at least to them. But if the Mafia was keeping tabs on the villains, then who was keeping tabs on the heroes?Such was Sigma's new job, control the information and make sure the conflict doesn’t reach any further into Yokohama than it already has.No Deals, no conditions, no compromise.

Teen 22k words 7 / ? ch In progress 481 kudos

Armed Detective Agency Member Sigma (Bungou Stray Dogs) · Sigma is So Done (Bungou Stray Dogs) · Sigma-centric (Bungou Stray Dogs) · Sigma goes to UA· +6 more

Bungou Stray Dogs+1

A new responsibility

by Tellfals

Not long after the events at Mersault the Agency found themselves with a new case, a request from the outside asking for one of the detectives to go and help keep some students safe. Now, all Dazai wanted was to simply rest but the universe decided that that would not happen and he was chosen to go for the mission, at the same time the actions of the HPSC have become concerning and another agent will be sent out as well, the lucky one being the newest addition to the Agency, Sigma.Kunikida did not actually trust either of them to keep themselves in check, plus his experience on being a teacher could help Dazai, so while it was not the original plan he decided he would also be goingIn short Dazai becomes a teacher/bodyguard, Sigma will be infiltrating the government and Kunikida continues being the mom friend

Teen 11k words 5 / ? ch In progress 480 kudos

Sigma is So Done (Bungou Stray Dogs) · Crossover · Alternate Universe - Canon Divergence · Dazai-Typical Suicide Mentions (Bungou Stray Dogs)· +15 more

Bungou Stray Dogs

Drowning Lessons

by mistermoonshine

A slight retelling of chapter 106.5, in which Dazai closes the gap and gives Sigma some air.

General 1.2k words 1 ch Complete 445 kudos

Chapter 106.5 · He/Him and They/Them Pronouns for Sigma (Bungou Stray Dogs) · Canon Rewrite · I just wanted to make them kiss

Zero Escape (Video Games)+1

What Comes After Zero

by VampireBadger

Spoilers for ZTD. A series of drabbles, mostly set after ZTD. Expect lots of fluff, lots of family stuff, basically characters finally getting their happy endings.

Teen 12k words 9 ch Complete 391 kudos

Spoilers · Post-Canon · Fluff · talking about time travel· +3 more