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ꜱᴜᴄᴄᴇꜱꜱᴏʀ

Summary:

What if Dazai was sent back to the Port Mafia as part of the exchange?

Kunkida: The President of the Armed Detective Agency.

Dazai: Boss of the Port Mafia.

Notes:

Just to make it clear btw for the shippers, the Dazai X Kunikida thing is more of like a past romance, in my fanfic the current events would focus more on Dazai X Chuuya

(See the end of the work for more notes.)

Chapter Text

It’s raining.
Fitting, really. It always rains when something ends.

I sling the strap of my bag over my shoulder and take one last glance at the Armed Detective Agency’s office. Dim light flickers in the windows. My desk is bare. The mess of candy wrappers and paperwork and half-baked suicide notes—gone. It’s cleaner this way. Easier.

Quiet steps carry me down the hall. No dramatic farewell, no final joke. I don’t like goodbyes. They’re just promises people break later.

I’m almost at the door when I hear it—
“DAZAI!”

Of course.
Kunikida. Always on time, even for a goodbye I never wanted him to witness.

I keep walking, feet hitting the slick pavement as I step into the cold. The rain is sharp against my skin, seeping through my bandages like it’s trying to wash me away.

“Dazai!” Closer now. “Stop!”

Still, I keep going. If he touches me, if he says the right thing, I might—
But no. I’ve made peace with this. I have to.

Then a hand grabs my arm, yanks me around. And there he is.

Kunikida Doppo. Soaked to the bone, rain clinging to his eyelashes like tears he’d never admit to shedding. The new President of the Agency, and still trying to live up to ideals no one can live up to. Especially not now.

“What the hell are you doing?” he demands. “You’re really just… going? Because the President told you to?”

I look at him. Really look. That jaw set like stone. The eyes that always try too hard to understand me, like if he just stares long enough, he’ll find the right answer.

“It’s not like I had a choice,” I murmur. “You know how he is.”

“You always have a choice.”

There’s heat in his voice. Anger. Fear. I envy him for still feeling things that deeply.

“You’re just running away again,” he spits.

Running away. God, if only he knew how often I’ve thought the same thing.

“No,” I say softly. “I’m going back. To where I belong.”

He flinches, and I hate myself a little.

“You don’t belong there anymore,” he says, quieter now.

I tilt my face up to the sky. Let the rain blur the city lights. “Maybe I never belonged here either.”

He says something about family. About us. It sticks somewhere under my ribs, but I pretend it doesn’t.

He doesn’t understand. He can’t.

This isn’t about what I want. It’s about what’s coming. What the city needs. And right now, it needs someone to hold the darkness in place from the inside.

“The Port Mafia is changing,” I tell him. “Morii’s getting old. There’s a power vacuum. Chuuya can’t do it alone, and if I don’t step in… you know what kind of people will.”

Kunikida’s mouth is a thin line. “They’ll make you Boss.”

I give a dry laugh. “That’s the idea.”

He looks like he wants to argue, but all the fight drains out of him. His hand drops from my sleeve.

“Take care of the Agency,” I say. “You were always the one who believed in it more than I did.”

He doesn’t answer. Just stands there in the rain like he’s waiting for me to turn around. I don’t.

If I look back now, I might stay.

So I walk away.
One step. Then another.
Let the rain swallow me whole.

 

The rain doesn’t stop.

It follows me all the way to the shadows of the city—the place the sun never touches. The place I swore I’d never return to.

But here I am.

The Port Mafia’s headquarters rises out of the fog like a cathedral to violence, all sleek stone and cold steel. Familiar guards outside nod as I approach, hesitation flickering in their eyes. They remember who I was. They don’t know who I am now.

Not even I know that.

Inside, the corridors haven’t changed. The same stale scent of cigars and antiseptic. The same muffled silence thick with secrets. I count each step like a heartbeat.

Six years.
That’s how long it’s been since I walked these halls with blood on my hands and nothing in my chest.

Now I’m back. And the ghosts haven’t aged a day.

“Dazai,” a voice calls, cool and clinical.

Doctor Mori. Of course he’s the first to greet me. No fanfare. No ceremony. Just him standing at the end of the hallway with that ever-present smile that means absolutely nothing—and everything.

“Welcome home,” he says.

“I’d argue against calling this a home,” I mutter, brushing damp hair out of my eyes, “but I suppose it’s the closest thing I’ve got.”

Mori gestures for me to walk with him. I follow, rain still dripping off my coat and leaving a trail down the marble floor. He doesn’t comment on it.

“You understand why you’re here,” he says without looking at me.

I nod once. “There’s a storm coming. You need someone who can handle the mess when it breaks.”

He glances sideways. “And you’re prepared to be that person again?”

That question. It’s always that question.

“I never stopped being him,” I say, voice low.

Mori smiles. “No, I suppose you didn’t.”

We walk in silence for a moment before he speaks again.

“You’ll be meeting with the executives tomorrow,” he says. “Some are uneasy. They remember how… unpredictable you were.”

“Then they should be scared,” I reply.

Mori chuckles lightly. “Good. Keep them on edge. It’ll make the transition easier when the time comes.”

When—not if. He’s already decided. The title’s just a formality now.

Boss of the Port Mafia.

I spent years clawing out of this pit. Now I’m about to sit on its throne.

And yet… the part that hurts most isn’t the blood I’ll spill, or the power I’ll wield. It’s the memory of Kunikida standing in the rain, shouting my name like he still believed I was worth chasing.

That’s the thing about falling back into the dark—you don’t just lose the light.
You lose the people who were willing to carry it for you.

I pause outside the door to my old quarters. Someone cleaned it. Repainted the walls. It doesn’t smell like death anymore. Not yet.

I walk in, drop my bag, and peel off my soaked coat. The silence wraps around me like a noose.

I sit on the edge of the bed, stare at the wall, and wait.

Not for sleep.

For the war that’s coming.

~~~~~~~

I wake up to silence.

Not peace—Port Mafia silence.
The kind that hums under your skin like a threat. The kind that feels earned, not gifted.

The room is dark, the curtains drawn. The bed beneath me too soft, too clean. I’d forgotten how sterile comfort could feel.

I swing my legs over the edge, bones creaking slightly, and stare at the dim outlines of my quarters. Someone left coffee on the side table. Still warm. Always watching, always two steps ahead—Mori’s subtle way of saying you’re already part of this again, whether you like it or not.

I take a sip. Bitter. Perfect.

Throwing on a black button-up and the old trench coat I never thought I’d wear again, I step out into the hallways I once ruled like a shadow.

It’s all familiar, but different.
Cleaner. More militarized. Less chaos. Less me.

Footsteps echo ahead of me—scattered, cautious. People whisper when I pass. No one meets my eyes for long.

Rumors travel fast underground. Apparently, so do ghosts.

Then I round a corner and—

“The hell—”

A flash of flame-orange hair. Blue eyes burning.

Chuuya.

He nearly crashes into me before he stops dead in his tracks, drenched in disbelief.

I blink at him, raise a hand. “Good morning, partner.”

For a second, he doesn’t move. Then his fists clench.

“You’re kidding,” he growls. “You’re actually back.”

“Well,” I muse, “unless I’m a very handsome hallucination—”

“Shut up.” His voice breaks around the edges of fury. “I thought it was a stupid rumor. Thought you were off playing suicide king with your Agency buddies.”

“Ex-Agency,” I correct quietly.

He steps forward, chest heaving. “You left, Dazai. You left me. You left this. And now you just come walking back in like some… returning hero?”

I don’t speak.

Because I know exactly what he means—and it’s not about the Port Mafia.

“You promised,” Chuuya says, low now, almost a whisper. “You said we’d both be free.”

That hits harder than it should. And it should hit hard.

“Don’t twist it,” he snaps, stepping closer. “I didn’t stay here for me. I stayed to keep things steady when you left. You don’t get to come back and pretend like this is some noble sacrifice.”

“I’m not pretending,” I reply, softer than I meant to.

He stares at me, rain-damp hair clinging to his face—probably came in from patrol, still wearing his coat, boots leaving little puddles on the tile.

“I was free,” he says again, voice cracking. “You said you wanted that—for both of us. And I thought—I thought you finally were.”

“I was,” I murmur.

Chuuya scoffs bitterly. “And now you’re back in chains, like always.”

I shrug, trying to wear the indifference like armor. “Someone has to hold the leash. Better me than a rabid dog with a vendetta and a taste for chaos.”

“Don’t make this about some selfless martyr act,” he bites. “You’re not saving the city. You’re running in circles. Just like always.”

His words are cruel. Honest. And right.

I take a step back, give him space, even though I can feel something in him wanting to tear through the distance instead.

“You came back,” he says, almost like he still can’t believe it. “You came back… but you didn’t come for me.”

And there it is.

The thing we never said when I left.
The thing that stuck in his throat, and in mine.

“No,” I say. “I didn’t.”

His face twists, half hurt, half hate—and then he storms past me without another word, shoulder slamming into mine with all the force of seven years of resentment.

I stand there in the hallway long after he’s gone.

Not because I don’t know where to go next.

But because for the first time in a long time, I feel like I left something unfinished.

And it’s not a mission.
It’s him.

 

The silence left in Chuuya’s wake is louder than his voice ever was.

He’s always been noise—grit and volume, passion and rage and fire. And now, he’s gone, and the hallway is too quiet. Still tastes like his anger in the air.

I lean against the wall, arms crossed loosely, eyes unfocused. My chest feels… off. Not tight. Not aching. Just off. Like something’s shifted out of place.

Chuuya had always been the one thing that made this place feel less like hell. That tether to something real beneath all the blood and orders and power games.

And I ruined that. I did what I always do.
I left.

It was easier to tell myself we’d both be free if we stayed apart. Easier to think he’d understand—Chuuya, of all people, always understood the ugly choices no one else wanted to make.

But I forgot that he stayed.
And I forgot what it meant to him when I didn’t.

I push off the wall, footsteps echoing, turning corners without looking where I’m going. Just moving. Trying to outrun the part of me that wants to chase him.

He’s not wrong. I didn’t come back for him.
But I didn’t come back against him either.

I came back because I knew someone had to. Because the moment Mori looked at me and said “they’ll listen to you,” I knew what that meant.
He was already naming me Boss.
Already planning the next ten steps, like he always does.

I pass one of the old training rooms. Doors cracked open.
Inside—new recruits. Late teens. Wide eyes. They flinch when they see me.

And why wouldn’t they?
To them, I’m a story whispered between missions. The man who walked away from the Mafia, from Mori, and lived. The traitor who might be a hero. The hero who might be a devil.

None of them know that I left a piece of myself here in the form of a short, furious gravity manipulator who once said he’d never forgive me.

And maybe now…
He really won’t.

I keep walking. There’s a rooftop on the upper level no one goes to anymore. A place I used to sit with Chuuya after missions, when the smoke cleared and the world hadn’t quite caught up with us yet.

I climb the stairs slowly, like I’m retracing a memory.

When I push the door open, the wind greets me with cold hands. The city stretches beyond the edge, smeared by rainclouds and glass. I step out into the grey, the sound of traffic far below.

Chuuya’s words loop back in my head.

“You came back… but you didn’t come for me.”

He wanted freedom for both of us.
I gave him responsibility instead.

You promised, he said.

And maybe I did.

I lean against the railing, hands tucked in my pockets, eyes on the skyline. I don’t cry. I don’t sigh. I just… exist. For a moment, I let myself feel everything I usually bury.

Then, behind me—

A voice.

Low. Quiet. Sharp around the edges.

“You’re lucky I didn’t punch you.”

I turn.

Chuuya stands there, rain dripping from the ends of his hair, arms crossed, still seething. But he came back. That means something.

“I didn’t expect you to,” I say.

“Yeah, well,” he mutters, stepping onto the rooftop fully, “I’m trying not to kill people before breakfast these days.”

Silence stretches between us again, taut and uncomfortable. Then:

“Why now, Dazai?” he asks. “Why come back now, after all this time?”

I meet his eyes. There’s no joke on my lips. No clever deflection.

“Because this city is cracking,” I say. “Because Mori needs a face the rest of the underworld fears more than his own. Because if I didn’t come back… someone worse would’ve taken it all.”

Chuuya’s expression doesn’t change. “And that’s it?”

I look at him for a long moment.

“No,” I admit. “That’s not all.”

He waits.

I almost say it.
I missed you.
I thought about you every goddamn day.
I didn’t know how to come back without ruining what we had left.

Instead, I say:

“I wasn’t ready to see what I’d broken.”

His jaw tightens, but he doesn’t look away. Not this time.

“Then fix it,” he says.

Just like that.

Not a demand.
Not a command.
An offering.

Something fragile in the middle of a war neither of us asked for.

I take a step toward him. Just one.

“I’ll try.”

He doesn’t smile. But he doesn’t walk away.

And for now, that’s enough.