Dazai Osamu was the youngest Port Mafia executive in history; an alpha referred to as a demon even by his colleagues. Except that he isn't an alpha, and he's certainly not in the Port Mafia anymore. Now, he's not really sure what he is, but he hopes he can add "good mother" onto his resume someday. And he needs to figure out how to fit Chuuya there with him. [omegaverse au of canon]

After years of silent endurance under Mori's thumb, Dazai Osamu finally breaks. Wounded, overstimulated, and unable to speak, he shows up at Chuuya's door in the dead of night - not as a Mafia executive, but as a shattered boy who doesn't know how to ask for help. Chuuya, still tethered to him by something deeper than he'll admit, takes him in without question. What begins as a night of tending wounds slowly unravels into something far more fragile: trust. As Dazai recovers in secret, hidden from Mori's reach, the two rediscover each other in the quiet. Trauma leaves its mark - in broken speech, haunted silence, and the missing eye Dazai refuses to explain - but Chuuya refuses to let him fall back into darkness. Even when Dazai proposes marriage in the middle of a breakdown, even when grief and guilt threaten to drown them both, Chuuya stays. Together, they plan their escape - from the Mafia, from their past, from a city that never let them breathe. With Ango's help, they fake their deaths and disappear into a life neither of them believed they could ever deserve. A life with a home. A shared bed. A bath filled with lavender oil. A prosthetic eye that lets Dazai be seen without being dissected. And for the first time in years, they begin to learn what safety feels like. But healing is never easy. And love, no matter how deep, doesn't erase the scars overnight. This is a story of survival. Of choosing each other. Of saying stay and meaning it. And of two broken souls building something whole in the quiet. So what would happen if both joined the ada? And what would happen if Mori demands Dazai back after the prison arc?

A few months after Chuuya Nakahara had joined the Port Mafia, Dazai Osamu decides to strike a deal with him, one to soothe his lingering desires... were they really just partners anymore? (Disclaimer : the pictures do not belong to me, I found them on Pinterest) ⚠️WARNING : This content is mature and extremely dark. Keep in mind that your mental health matters, and if you are a minor or someone who struggles with their mental health, Please do not read it. You can, as long as you're emotionally mature enough. ~ Part two 'Crawling back to you...' is in progress, under my profile. So follow, vote and stay tuned for more!

CSR: THE DEVIL'S TEMPTATION "You've been very disobedient, kitten." Dazai mutters dangerously, "I must teach you a lesson you'll never forget." Chuuya was an orphan, and when the orphanage that he loved got burned when he was 7 years old, he got adopted by a kind and mysterious man that he calls "Master," except that "Master" is a seven-year-old demon prodigy named Dazai Osamu... and Dazai is not as kind as people think he is.

As the title says, this one gonna be filled with trans chuu x zai oneshots. The timeline may differ in each chapter, cuz I'm indecisive person, so suffer hahahaha~ Oh and this may or may not have some oneshots with both being trans or maybe fem au but I'll let you guys know beforehand ^^ Anyways, enjoy and feel free to give ideas or requests!!

what happens when class 1-A gets the opportunity to go to Yokohama for their winter vacation, which is infamous for the multiple deaths of pro heroes? With a lot of hesitation a few students end up going alongside their teacher Aizawa, but what happens when they get to know the real Yokohoma rather than the ones told to them as stories, and what happens when unexpected groups team together to take down 1-A and the ADA Rankings: 4/1000+ in ml

a hidden organization has finally build the courage to threaten the town of Yokohama but will the ada and pm let these people threaten there land?

Since the beginning of Quirks, Yokohama has announced independence from Japan and closed itself from the rest of the world. To this day and age, no one knows what lies within the city of Yokohama-or that was what the public was made to believe. In reality, Yokohama has long fallen into the control of the world's largest criminal organization known as the Port Mafia. Follow Class 1-A as their principal organized a field trip to Yokohama! In their short trip there, they must change their perspectives and learn exactly what it means to be justice and what it means to be villains.

Dazai and Chuuya become Youtubers, so they can gain the attention of the Heroes and freely infiltrate the hero school 'UA', with the task of eliminating some pests and reminding everyone on why they shouldn't enter Yokohama. ( This was a story originally posted on ao3 but it got abandoned and I want to continue it!) https://archiveofourown.org/works/54087262/chapters/136935724 is the original

Soukoku gets a criminal child and some trouble Or Mori-san is no longer the boss of the Port Mafia. Dazai Osamu is the youngest boss in the history of the Port Mafia with his personal god as right hand man. Yokohama has been cleared of all other petty organizations and the Triparty sistem is as efficient as ever Now the double black has to face yet another problem, a child, a young girl of the age of fifteen that managed to enter Yokohama without anyone noticing probability using some kind of ability. Or They are unmarried and childless, lemme fix that real quick. Also available on Ao3 under the same title. Finished - i have PT 2 in my mind but not in words