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2026-07-11
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2026-07-24
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The Things We Hide

Summary:

The mission was simple.

Pretend to be students.
Investigate quietly.
Go home.

Unfortunately, Class 1-A has other ideas.

Or:

Dazai and Chuuya are sent undercover to U.A. High School and Aizawa acquires two new headaches.

Chapter Text

 

Yokohama was a contradiction. It wore two faces; two masks, and most people never realized they only ever saw one.

By day it was a bustling port city where commuters hurried toward crowded train stations, and businesses thrived on the constant movement of goods, serving not only the citizens of the surprisingly condensed city but exporting their products far beyond its borders. While cargo ships drifted lazily across the vast harbor. It was ordinary in the way only a city accustomed to movement could be, familiar enough that people stopped noticing the minor details.

By night, those same streets belonged to the shadows. To the whispers. To hushed negotiations, unseen exchanges, and the names of people who never appeared in the newspapers.

To most, Yokohama was simply home. Houses had been passed from one generation to the next for decades. Businesses that began as nothing more than a simple idea had grown into towering buildings nestled amongst the already crowded central business district, and families lived their lives believing tomorrow would look much like today.

That was the illusion.

The people who truly knew Yokohama understood the city wore its second face only after dark, when those blind to the shadows and deaf to the whispers finally closed their eyes for the night. Beneath the surface it was a carefully balanced machine, every unseen cog turning exactly as it should, every pocket of darkness concealing another pair of watchful eyes. 

Nothing happened without someone noticing.

Dawn had only just begun chasing the last traces of night from the skyline when Dazai Osamu stood on the edge of a rooftop, his hands buried comfortably in the pockets of his dark coat as he watched the city wake lazily beneath him.

The sky, rapidly becoming a madman's painting of grays and white, promised rain, and the breeze curling in from the harbor carried a damp chill that settled easily against his skin. It wasn't unpleasant. If anything, it suited the morning.

Below him, the city slipped quietly into its routine.

The bakery on the corner was running six minutes behind schedule. The first batch should have been in the display window by now, but the owner was still carrying trays from the ovens. A delivery truck had taken an unfamiliar route through the warehouse district closer to the harbor. Two plainclothes operatives had disappeared into the growing crowd two streets over, dressed well enough that no one spared them a second glance.

Across the road, a convenience store owner kept pretending to organize the display outside his shop while checking the reflection in the front window every few seconds.

Most people would have called it another ordinary morning. Dazai had long since learned there was no such thing.

The observations settled into place without effort, each one connecting naturally to the next until a picture formed almost on its own. He never consciously searched for details anymore. They simply arrived, his mind sorting the useful from the irrelevant as naturally as breathing.

Somewhere behind him, footsteps echoed across the rooftop.

Measured, unhurried, familiar.

He didn't bother turning. "Six minutes."

The footsteps stopped a handful of paces behind him. "What?"

Dazai could picture the expression without looking. Mild confusion first, then irritation. And then finally, the slow realization that, somehow, this was probably Dazai's fault.

He sighed dramatically. "You're six minutes late."

"I am not."

"You are."

"You told me to meet you here at six-thirty." There was a sharpness to Chuuya's voice that bit harder than the morning wind.

"I did."

"You absolute bastard."

Only then did Dazai glance over his shoulder, the corner of his mouth lifting in silent satisfaction. "The meeting was at six thirty-six."

He was met with Chuuya's stare, piercing, practical, and entirely unimpressed. "You changed the time just to annoy me."

"No." Dazai let the silence stretch between them until a foghorn finished rolling across the harbor. "I was entertaining myself."

Chuuya didn't dignify that with a response. Instead, he crossed the remaining distance and stopped beside him at the edge of the rooftop, tugging his coat a little tighter against the cold before looking out over the waking city.

"I hate you."

"So you keep telling me." Dazai smiled to himself, entirely satisfied.

"Y'know," Chuuya said after only a few seconds of silence. He tugged absentmindedly at the edge of one glove, "there are much better, warmer places to meet." He nodded toward the street below. "Like that coffee shop on the corner."

Dazai followed his gaze.

It was a small place tucked between two older buildings, warm light spilling through the front windows and onto the sidewalk. The doors barely had time to close before another customer hurried inside, escaping the fall morning with a muttered greeting, while others emerged carrying steaming paper cups or brown bags that filled the air with the smell of fresh bread and coffee.

It was comfortable and predictable. Exactly the sort of place Chuuya would choose.

Dazai hummed noncommittally, already losing interest. Beside him, Chuuya folded his arms, correctly interpreting the hum as the conversation ending before it had really begun.

"So," Chuuya said instead, "why did the boss want us here so early?"

With a casual, one-shouldered shrug, Dazai answered, "Maybe he enjoys ruining people's mornings."

He could feel Chuuya staring at him, so he deliberately brightened his smile before finally looking over.

"That's not funny," Chuuya said slowly, enunciating each word as though speaking to a particularly stubborn child.

"I completely disagree."

"You're insufferable."

"I've been called much worse."

"I've probably said much worse."

"You certainly have."

Chuuya sighed through his nose, clearly deciding he wasn't going to win this particular battle.

"Regardless," Dazai continued, straightening away from the ledge, "the boss wants us to retrieve some information before we report to headquarters." He paused to think. "You remember that informant? Short, blond..." His hands floated awkwardly around his own head as he attempted to recreate the man's hairstyle with an impressive lack of success.

"Oh, God." Chuuya bent forward, resting his hands on his knees. "Not him. He talks way too fucking much."

Dazai internally agreed with that. Outwardly, he simply chose not to.

"But Chuuya," he said with theatrical disappointment, "watching you slowly lose your patience is the highlight of these assignments. You somehow manage to turn an otherwise forgettable mission into something I'm proud to write about in my diary every evening."

For the briefest moment, Chuuya looked genuinely caught off guard. "You keep a diary?" There was entirely too much wonder in his voice.

Dazai nodded solemnly. "Of course. Where else am I supposed to confess my undying love, or, more importantly, organize my future suicide attempts?" He tilted his head thoughtfully. "I don't imagine Mori would appreciate little hearts and hangman doodles covering the mission reports."

"As if you were writing the reports," Chuuya muttered.

"It's hardly my fault your handwriting is so much more elegant and feminine than mine."

Chuuya straightened with a groan more suited to a man three times his age. "I'm going to throw you off this roof."

Dazai glanced over the edge, several stories of empty air separating them from the asphalt below. "You'd have to catch me if I jumped first."

His toes had barely brushed the edge before the back of his coat was yanked sharply, pulling him several steps away from the drop.

"Don't you fucking dare," Chuuya snapped. "Not today."

Dazai allowed himself to be dragged back without complaint, if only because Chuuya's reaction had been exactly what he'd expected. Maybe even a little quicker.

Only once they were, what Chuuya deemed a safe distance from the edge, did he finally let go, smoothing the front of his own coat as though nothing had happened.

"Let's just get this over with," Chuuya muttered, punctuating the sentence with the sort of long-suffering sigh before leaping effortlessly onto the neighboring rooftop.

Dazai followed without hurry.

Together they crossed the skyline at an easy pace, jumping the narrower gaps, climbing where the height changed too sharply, moving across Yokohama with the quiet confidence of people who had done this hundreds of times before.

Behind them, the clouds finally gave up pretending to hold back.

The first drops struck the rooftops with soft, scattered taps before the rain settled into a steady rhythm.

Neither of them paid any attention to it. Wind, rain, snow, it made little difference, there was work to do.

It was just another assignment, just another morning. Just another ordinary day in Yokohama.

 


 

It doesn't take them long to reach the outskirts of the city. The farther they walked, the calmer everything became, the constant murmur of commuters faded into the distance until it was replaced by the steady clanking of machinery echoing through the warehouse district.

Out here, the buildings were spaced much farther apart, forcing them off the rooftops and back onto the cracked pavement below. Some warehouses were still operational, their towering gates standing open as tired factory workers disappeared inside with steaming coffees clutched in their hands, while others were nothing more than oversized storage sheds waiting for the next shipment. Every so often they passed one that had long since been abandoned, its front doors hanging crookedly from rusted hinges, broken windows exposing nothing but darkness.

"You do know," Chuuya said after a while, breaking the comfortable silence as he pushed a damp strand of red hair away from his forehead, "that was your fault."

Dazai looked over, expression blank.

"The rain," Chuuya clarified.

"Oh yes." Dazai lifted a hand toward the clearing sky as though presenting it proudly. The downpour had stopped barely five minutes ago, though that hadn't stopped either of them from being soaked through. "I've recently developed weather manipulation." He glanced sideways at Chuuya, his expression suddenly thoughtful. "You do resemble a drowned rat. It's very fitting."

Chuuya simply rolled his eyes instead of taking the bait, shoving his hands deeper into his pockets and immediately regretting it when his damp gloves met equally damp fabric.

"One day someone's going to kill you," he said matter-of-factly, privately acknowledging that, at this rate, there was a very real chance he'd be the one to do it.

"Statistically unlikely," Dazai replied, nodding as though he'd just proven an important point.

Ignoring the fact that his partner somehow managed to contradict himself with complete confidence, Chuuya sighed. "You've tried to drown yourself three times this month." He paused briefly before adding, "So far."

"Exactly."

"That doesn't support your argument."

"It supports it perfectly."

Chuuya ground his teeth together, brushing another stubborn strand of wet hair from his eyes for what felt like the hundredth time.

They walked on in silence for several more minutes, boots splashing through shallow puddles left behind by the rain. Off to their left, the harbor steadily drew closer, rows of docks stretching into the bay where cargo ships sat waiting to be unloaded, towering cranes swinging overhead as containers were lifted with practiced precision. The entire waterfront had been designed for efficiency, every warehouse, rail line, and loading platform connected like pieces of a machine that never truly stopped moving.

On the other side of them, abandoned factories and warehouses became more common, spread farther apart with yards littered with damaged cars, rusting machinery, and shipping containers left to decay. Some had long since been stripped of anything worth stealing, while others still bore the blackened scars of old fires.

It wasn't unfamiliar territory.

The Port Mafia had made use of the shadows out here more times than Chuuya could count, and if the empty buildings could talk, they would probably tell stories better left forgotten.

"Hey, Chuuya?"

He hummed in response, tilting his head just enough to show he was listening.

"Do you think this one will try to run?"

"Probably."

"Should we let him?"

Chuuya snorted. "You're only saying that because you don't feel like chasing him."

Dazai smiled brightly.  "Actually, that's incorrect," he replied with the kind of cheerful confidence that immediately made Chuuya's teeth grind together.

"Then why?" Chuuya sighed, already regretting asking the question before the words had even left his mouth.

"Watching you chase people is entertaining."

There it was. Exactly the answer he'd expected. Chuuya groaned, dragging a hand down his face before shaking his head. "One day," he said, pausing just long enough for dramatic effect, "I'm going to throw you into the bay."

If there was ever a reliable way to get a reaction out of Dazai, it was threatening either suicide or physical violence. "You keep making these promises, Chuuya."

Before Chuuya could think of a suitable response, Dazai stopped walking.

He turned toward the warehouse sitting ahead of them, studying it for a moment before scrunching up his nose. "This place is falling apart."

He wasn't wrong.

The farther they'd walked from the city, the worse the buildings had become, but this one was easily the worst of the lot.

Chuuya had spent enough time waiting around this district over the past few months to come up with his own theories. Salt carried in from the harbor slowly ate away at exposed steel, stripped paint from the walls, and settled into every crack it could find. The closer a building stood to the waterfront, the quicker it seemed to rot.

That still didn't explain the shattered windows or the bright graffiti covering the walls. Those were entirely human.

"Mm."

Chuuya glanced over at Dazai, who was staring at the warehouse with that distant, unreadable expression he wore whenever his mind was already several steps ahead.

"Do you think he's inside?"

"Definitely."

"How do you know?"

"Because if he wasn't," Dazai replied without missing a beat, "we'd have walked all this way for nothing."

"You fucking bastard."

Typical, Chuuya must have been more tired than he realized if he'd walked straight into one of Dazai's traps that easily.

"Chuuya," Dazai said with exaggerated disappointment, "that language isn't very professional."

"Fuck you, Dazai."

Dazai laughed.

It wasn't loud, and it didn't last long, but it was genuine enough that some of the irritation simmering beneath Chuuya's skin quietly faded away.

They crossed the last few steps to the warehouse door, which somehow, probably through sheer willpower alone, was still hanging onto its rusted hinges. Naturally, the reckless idiot reached for the handle while Chuuya was still a few paces behind.

Lunging forward, Chuuya caught the back of Dazai's coat and gave it a sharp tug, pulling him away from the door hard enough to make him stumble.

"Don't start."

Dazai glanced down at the hand still gripping his coat but made no effort to pull away. "Start what?" he asked, the innocent question completely ruined by the smile tugging at the corner of his mouth.

"The thing where you smile until people confess to crimes they didn't commit." Honestly, what people found so frightening about the idiot was beyond Chuuya.

"That's only happened twice."

"Four times," Chuuya corrected automatically. At least four times that he knew about.

Dazai shook his head, wagging a raised finger from side to side like the pendulum of an old grandfather clock. "One of them wasn't technically innocent."

"That's not helping." Chuuya finally released his coat with a quiet sigh. "I hate talking to you before coffee."

"I thought you hated talking to me all the time."

"That's correct."

Without another word, Chuuya stepped past him and shoved the warehouse door open.

The inside somehow managed to look even worse than the outside.

A wave of stale, musty air rolled over them the moment they entered, thick with dust and rust. It was surprising, really. With half the windows missing there should have been enough airflow to clear the place out, yet somehow it still smelled like decades of neglect.

Chuuya drifted slightly to one side, letting Dazai take the lead. The informant was already waiting behind a battered table near the far wall, and if Chuuya had his way he'd have nothing to do with the conversation. That was Dazai's territory. Chuuya's job was making sure nobody did anything stupid. Well, nobody except Dazai.

His gaze wandered upward. Built into the left side of the warehouse was what had once been a second-floor office. At least, he assumed it had been. Half the floor had collapsed years ago, leaving a jagged hole through the middle, while an old ladder dangled crookedly toward the concrete below. The whole thing looked as though a strong gust of wind might finally convince it to finish falling apart.

Apart from that, there wasn't much worth looking at. A tiny kitchenette sat against one wall, complete with a stained electric kettle and a collection of chipped mugs, while several dented filing cabinets stood farther back, pushed neatly against the concrete as though someone still expected them to be useful.

By the time Chuuya looked back, Dazai had already made a beeline for the informant.

The man was nervous, painfully nervous. His hands twisted together beneath the table without ever stopping, and despite the cool morning air and dim light filtering through the broken windows, sweat glistened along his hairline.

Dazai smiled.

That was Chuuya's cue.

Without a word, he drifted a few steps off to the side and leaned against an old wooden support beam, folding his arms across his chest as he settled in to watch the show.

"Good morning," Dazai said, his voice carrying effortlessly through the empty warehouse. "My name is Dazai, and this is my partner, Chuuya."

Dazai made no attempt to offer a handshake, simply slipping both hands into his coat pockets. Chuuya knew exactly what he was doing. Relaxed posture, easy smile, open body language. A harmless teenager.

It was complete bullshit. The informant had no idea he was standing in front of one of the most dangerous people in Yokohama.

"You're from the Port Mafia?" the man asked, his voice trembling at first before slowly finding its footing. "I mean... I expected..." His hands rose unconsciously, picking at the raw skin around his nails.

"Someone older?" Dazai finished. The silence that followed was answer enough. "We get that a lot."

With an almost sympathetic tilt of his head, Dazai casually looked around the warehouse. The gesture was almost comically unnecessary.

Chuuya would've bet an entire month's salary that Dazai had already memorized every entrance, exit, hiding place, and loose floorboard during the short walk from the door.

Eventually his attention drifted back to the informant, his gaze traveling slowly from the man's shoes to the top of his greasy hair. "Have you been waiting long?"

The man adjusted his tie, his eyes flicking nervously toward Chuuya. 

Chuuya answered with nothing more than a raised eyebrow. They'd worked with this informant before. He'd always talked too much, always eager to trade information for a little recognition, always desperate to prove how useful he was.

Today, though, something was different. The man wasn't simply nervous, he was waiting for something. Or someone.

It wasn't going well for him, and if he kept looking at Chuuya with that much panic, Chuuya sincerely hoped his affairs were already in order.

"Not really, sir," the man finally answered, dragging his attention back toward Dazai.

Chuuya only just managed to hold back a snort.

The hesitation didn't seem to bother Dazai in the slightest. Another reason he handled conversations like these instead of Chuuya. His patience stretched far further. "About ten minutes?"

The informant swallowed, then nodded. Once, twice, three times. Far too many. "Something like that." 

One nod suggested confidence. Two usually meant uncertainty. Three meant someone was lying.

"You seem uncomfortable." Dazai shifted his weight lazily from one foot to the other.

The informant wiped at his forehead with the back of his sleeve. "Just nervous," he admitted quietly.

Dazai hummed in mock understanding. "Were you waiting outside?"

Chuuya didn't need to see his face to know exactly what expression Dazai was wearing. That pleasant little smile, the one that always meant someone was about to make a very unfortunate mistake.

"No, sir."

"Oh." Dazai's smile widened into something feral. "That's unfortunate."

The informant frowned. "W-why?"

"Because now I know you're lying."

The man's eyes darted toward Chuuya again.

This time Chuuya ignored him completely, letting his own attention drift toward the row of filing cabinets instead. The third cabinet sat a fraction farther forward than the others. Barely noticeable, but enough. Working for the Port Mafia had taught him to notice the little things.

"W-What?"

Dazai let the silence stretch. Long enough for the warehouse to become oppressively quiet. Long enough for Chuuya to hear water dripping slowly somewhere outside. "The rain stopped five minutes ago," Dazai finally said, his voice calm, almost conversational. "And your shoes are dry."

Hook.

Line.

Sinker.

The poor bastard never stood a chance.

The man's mouth opened and closed like a fish hauled onto land. His eyes bounced frantically between Dazai, Chuuya, the warehouse door, and the windows sitting far too high to reach. Slowly, using both hands against the table for support, he started to push himself to his feet.

Dazai sighed softly. "Please sit down."

The informant obeyed immediately, dropping back into his chair so quickly it scraped loudly across the concrete. His fingers returned to the raw skin around his nails, picking so aggressively Chuuya was convinced he'd start bleeding if he kept it up.

Chuuya was getting bored. "Where's the file?" His voice cut cleanly through the room before Dazai could drag this out any longer. He gave the man exactly two seconds to answer.

Nothing came besides ragged breathing.

With an annoyed sigh, Chuuya pushed himself away from the support beam. His boots echoed softly across the concrete as he crossed toward the filing cabinets, both pairs of eyes following him the entire way.

The scrape marks were easier to see up close. Someone had been dragging one cabinet away from the wall over and over again. He crouched in front of the third cabinet from the left, pressed against the false bottom, and it came apart almost immediately. A thin manila folder rested inside.

"Found it." He held it up before standing.

"That was quick," Dazai commented, the words delivered lightly, almost jokingly.

Even so, Chuuya found himself standing a little straighter. "False bottom," he explained as he walked back over, wiping the dust from his hands onto the thighs of his pants. "There were scrape marks on the floor."

Dazai nodded once. "Makes sense."

Of course it did. Chuuya would have been surprised if Dazai hadn't noticed the same thing the moment they'd walked through the door.

"How did you…"

"You dragged it," Chuuya answered simply.

The informant's face fell.

Chuuya handed the folder over, watching as Dazai tucked it neatly into one of the hidden pockets sewn inside his coat before offering the man a polite nod.

"Thank you for your cooperation." Dazai's tone was perfectly level. Empty.

The informant blinked, looking genuinely confused. "Am… am I free to go?"

At the exact same moment Dazai glanced toward Chuuya, Chuuya looked back at him. Under different circumstances, it might have been funny.

"That's above my pay grade," Dazai replied.

Without another word, he turned and headed for the door. Chuuya counted exactly three steps before following.

"You're lying." The informant's voice echoed after them, stronger than it had been since they'd arrived.

Dazai paused with one hand resting on the warehouse door and looked back over his shoulder. "Probably."

_________________________

They were well clear of the warehouse before Chuuya finally broke the silence, flexing his fingers inside his still damp gloves. They squelched unpleasantly. "That could've taken five minutes if you'd let me handle it." 

Dazai tipped his head back, looking up at the sky. During the short time they'd been inside, the clouds had begun to break apart, fading from dark gray into something lighter. The sun, persistent as ever, was already trying to force its way through. "Where's the fun in that?"

Chuuya didn't bother answering. That was one argument they were never going to settle.

Suppressing a yawn, he shoved his hands deeper into his pockets. He was too damn tired to waste the energy arguing, though he made a quiet mental note to bring it up another time. There was no point using all his ammunition at once.

Another corner brought them to a sleek black sedan waiting quietly at the curb. Even before Chuuya spotted the driver standing beside it, he knew it wasn't there by coincidence.

The engine was still warm, a faint ribbon of exhaust drifting into the cool morning air. Whoever had arrived had done so only moments ago.

As they approached, the driver, immaculately dressed in a tailored black suit, stepped forward and opened the rear passenger door without hesitation. His posture was flawless, his gaze respectfully lowered. "The Boss requests your presence immediately."

Chuuya slowed for the briefest moment. He didn't know Mori particularly well. Understanding him was even harder. But one thing Chuuya had learned quickly was that the Boss rarely did anything without purpose.

Being summoned immediately after finishing an assignment wasn't normal. Something had happened. Something important.

Without a word, he slid into the back seat and shifted across the leather bench, leaving enough room for Dazai beside him.

The door shut with a muted thud.

For several moments, neither of them spoke. Instead, Chuuya glanced sideways.

Dazai looked exactly as he always did. Relaxed, composed, almost bored. Anyone else would have believed nothing had changed.

Chuuya knew better.

There was the slightest sharpness around his eyes. The almost imperceptible tilt of his head. Tiny tells that disappeared almost as quickly as they appeared when Dazai settled against the expensive leather seat.

Most people would have missed them entirely. Chuuya had spent too many years working beside him. He knew exactly what they meant.

Dazai was interested, and whenever Dazai became interested, it rarely meant anything good.

 


 

The towering black headquarters of the Port Mafia overlooked Yokohama like an immovable monument, its mirrored windows reflecting the fast-moving clouds while revealing nothing of the organization operating within.

Elevators glided silently between floors, their doors opening and closing with practiced precision as men and women dressed in identical black suits moved through the wide corridors without hesitation, briefcases tucked beneath their arms or tablets balanced neatly in one hand. Every step was measured. Every destination had already been decided long before they began walking.

No one wandered, no one lingered outside offices to gossip.

When someone of higher rank passed, employees acknowledged them with a respectful bow before continuing on their way. There was no need to stop, no reason to interrupt another person's work simply because an executive happened to be nearby. Time was valuable, wasting it was simply another form of incompetence.

Exactly as Mori expected.

His headquarters reflected the very philosophy the Port Mafia had been built upon. Dark marble stretched across polished floors that gleamed beneath carefully positioned lights, rich wooden paneling softened the otherwise sterile hallways, and thoughtfully selected artwork hung between reinforced steel doors concealing offices, meeting rooms, archives, and armories alike.

Nothing existed simply to impress. Everything earned its place.

If an emergency occurred, it was met with the same calm professionalism as every other task, because panic wasted time, time wasted opportunities, and opportunities lost could cost lives. Discipline was not taught during a crisis. It was cultivated long before one ever arrived.

Thousands of people worked beneath the Port Mafia's name, each occupying a place within a hierarchy refined over decades. Intelligence gathered information before it ever reached the executives. Logistics coordinated shipments with military precision. Legitimate businesses quietly funded operations hidden from public view. Medical staff stood ready long before injuries arrived, while security rotations overlapped so seamlessly that vulnerabilities were almost nonexistent.

Like the gears of an intricate clock, every department moved independently while contributing to something far larger than itself. Outsiders imagined the Port Mafia as little more than violent criminals occupying a skyscraper.

Mori had long since stopped trying to correct them.

Underestimating the Port Mafia had always been one of their greatest advantages. People expected chaos from criminals. They expected impulsive violence and reckless ambition. They rarely expected discipline.

Organizations built on chaos eventually collapsed beneath their own weight. The Port Mafia endured because chaos was carefully managed. Inside these walls, order was absolute.

Mori's office reflected that same philosophy.

Warm lamplight filled the spacious room, carefully positioned to soften the otherwise imposing atmosphere, while several reports lay spread neatly across his desk, arranged according to priority rather than subject.

Nothing sat where it didn't belong. If an item occupied space inside his office, it had earned the right to remain there.

His long, pale fingers curled around a fine china teacup as he took a slow sip, his eyes drifting lazily across the latest intelligence report while his free hand supported his chin, elbow resting comfortably against the polished desk.

The room remained pleasantly quiet, disturbed only by the occasional rustle of paper as he turned another page. 

Everything had its place. His bookshelf held a carefully curated collection of novels, two plush loveseats sat opposite one another across a low wooden table, and an antique record player occupied the corner nearest the double doors.

It was meticulously organized, comfortably predictable. Just the way Mori preferred it.

A gentle knock echoed from the other side of the office.

Mori didn't respond immediately. There was no need to rush. Instead, he finished reading the final sentence, stacked the reports neatly together, and slid them back into their folder before setting his teacup carefully onto its saucer.

Only then did he speak. "Come in."

Dazai entered first, his shoulders slouched lazily, but Mori knew better than to mistake relaxed posture for carelessness. Every movement remained deliberate, every step measured.

Chuuya followed no more than two paces behind, quietly closing the door before crossing the room to stand beside his partner. His posture was straight, his expression attentive, waiting for instructions before speaking.

Mori studied them both with the practiced eye of a physician. There were no visible injuries, no stiffness suggesting concealed wounds, no subtle inconsistencies in the way either of them carried themselves. Not that he had expected any. Even if one of them had been injured during the assignment, neither boy would have considered mentioning anything minor. They understood that his time was valuable. He had made certain of that.

"How did the retrieval go?" Mori asked, tilting his head ever so slightly.

"Objective secured," Chuuya answered without hesitation. "Minimal resistance. No casualties."

As always, concise, one of Chuuya's greatest strengths was his professionalism. He answered exactly what had been asked, nothing more, nothing less. An increasingly uncommon quality.

Mori shifted his attention to Dazai, who met his gaze without hesitation, the faintest smile resting at the corners of his mouth.

"He lied three times," Dazai said. "And I have reason to believe someone else was watching."

Interesting. It had been a relatively minor retrieval. The observer was unlikely to become an immediate concern, but Mori hadn't reached the top of Yokohama's underworld by ignoring unknown variables. Every loose thread had the potential to become something larger. He quietly committed it to memory.

"What would you have done if the documents hadn't been there?" From the corner of his eye, Mori caught the slightest furrow in Chuuya's brow. It was brief, and instinctive. Gone almost immediately. Even Chuuya seemed unaware of how expressive he could be.

"I'd search the building," Chuuya answered. "Expand the perimeter. Find whoever took them." His response was practical and direct. Entirely consistent with the way Chuuya approached problems.

Mori gave a small nod before turning his attention back to Dazai. 

The faint smile never left the boy's face. "They were always going to be there."

Mori's own smile deepened by the smallest fraction. "Explain."

"The informant lied," Dazai replied with effortless certainty. "He kept picking at his nails, looking toward the broken warehouse windows, and there was a layer of undisturbed dust on the filing cabinet." His eyes sharpened with quiet amusement. "The documents never left the building."

Silence settled comfortably over the office. Mori wasn't evaluating the conclusion. Several of his executives could have reached the same one. What interested him was the path Dazai had taken to arrive there. He hadn't guessed. He had observed. Years had passed, yet his thought process hadn't changed in the slightest.

"Good." It was all the praise either of them required.

Mori extended a hand and, without being asked, Dazai stepped forward and placed the recovered folder into it.

Opening it with practiced care, Mori skimmed through the handful of documents inside, his expression revealing nothing. Only after confirming everything was present did he close the folder again and slide it neatly into the top drawer of his desk.

Without pause, he opened the bottom drawer and retrieved another folder. Unlike the previous one, he didn't open it immediately. Instead, he placed it deliberately on the polished wood between them and, with two fingers resting lightly against the cover, slid it across the desk until it came to a stop within easy reach of the boys.

Neither of them moved. Mori could feel both pairs of eyes settle on him, waiting. His hand lingered on the folder for another moment before he finally opened it.

This file bore none of the familiar Port Mafia markings; no black insignia, no departmental seal, nothing to suggest it belonged anywhere inside this building.Instead, it was plain, official, academic.

Mori watched them carefully. Neither boy looked confused. They looked curious. He gave the folder one final push across the desk. Still, neither of them reached for it immediately.

Dazai was the first to break the silence. "This isn't from Yokohama."

Mori inclined his head once. "I have a new assignment."

This time, Chuuya stepped forward without waiting. He flipped open the cover, turning the first page, then the second. His hand stopped. Printed prominently across the page was the unmistakable crest of UA High School. 

"You're joking." For the briefest moment, disbelief broke through Chuuya's otherwise composed expression as he looked up from the file.

Beside him, Dazai leaned forward just enough to read the small print beneath the image upside down. Unlike Chuuya, he said nothing. His eyes lingered on the emblem for only a fraction longer than normal, but Mori noticed.

Of course he noticed.

UA High School and the Port Mafia existed at opposite ends of society. Their worlds had no reason to intersect.

"I'm not," Mori replied evenly.