Archive of Our Own

Chapter Text

There was something off about the tenant. I couldn’t put my finger on it, not exactly—but I felt it. You know that uneasy feeling that creeps in before your mind can catch up? Like an itch you can’t scratch. He smiled, spoke politely, paid on time—on paper, he was perfect. But there was a strange undercurrent in the air whenever he was near. Something that made the hairs on the back of my neck stand, like my instincts were whispering, "Watch him."

If I had to describe it, it was like staring at a pristine clock—everything new, polished, running like a dream. Except for one cog at the edge: rusted, grimy, like it had no business being there. It didn’t belong. And no matter how well the rest of it worked, that single piece ruined the harmony.

But what was I supposed to do? Maybe I was overthinking it. Maybe I was just being paranoid. Still… I couldn’t shake the feeling. There was something wrong with him. Something he was hiding beneath that calm face. But I kept quiet. After all, who am I to judge?

05 / v.

"his eyes showed too much kindness, it's so unsettling."

Jongwoo shot up the moment the alarm rang, his phone buzzing violently beneath his pillow like a restless creature demanding his attention. The vibration startled him more than the sound itself, jerking him into consciousness. He groaned, low and tired, turning to bury his face deeper into the pillow in resistance. Just five more minutes… But the weight of the day ahead pressed against him like a silent reminder—meetings, errands, responsibilities. There was no escape.

Ten long minutes passed. He finally dragged himself out of bed, limbs heavy with reluctance. The towel slung over the back of the chair felt damp to the touch—left out since last night. He didn't care. Grabbing it, he trudged to the bathroom and stood under the shower for what felt like forever, letting the hot water wake him inch by inch. Twenty minutes passed before he stepped out, skin flushed and mind still foggy. He dressed in a loose white band tee and faded grey sweatpants, towel still hanging over his shoulder as he absentmindedly ran it through his hair.

In the kitchen, he opened the fridge and scanned its contents—leftover takeout, eggs, a half-full bottle of water—nothing called to him. His stomach felt as empty as the silence surrounding him. I’m not hungry, he told himself, though he wasn’t sure if it was his body or just his mood.

Suddenly, the doorbell rang. A sharp, unexpected sound that echoed through the quiet apartment. Jongwoo blinked, then shut the fridge door with a soft click. Who the hell visits this early?

He shuffled to the door, still drying his hair. The moment he opened it, his gaze met a pair of warm, brown eyes. The man standing there had an open, boyish smile that made him look far too energetic for the hour.

“Hello there!” the stranger beamed, his grin wide and friendly. “I’m the new tenant here—I live right next door. Just wanted to apologize in advance for any noise, I’m moving my stuff in today.”

Jongwoo nodded slowly, still adjusting to the brightness of both the morning and the man’s energy. “Ah… it’s alright,” he said, voice a little hoarse, eyes trailing over the newcomer with a subtle curiosity.

He looked oddly familiar. Fluffy black hair fell slightly over large, expressive eyes. His face was slim and clean-cut, brows thick but neatly shaped. His clothes were styled like something out of a hip-hop magazine—oversized, layered, a little nostalgic. Where have I seen him before? Jongwoo thought, his mind flipping through blurry memories like pages.

“I’m Jongwoo,” he offered, leaning casually against the doorframe. “You?”

“Jin-il,” the man replied quickly. “I’m twenty-six. Do I call you hyung?”

Jongwoo gave a small, breathy laugh and scratched the back of his head, a little flustered. “Ah, sure. I’m thirty…”

“Woah!” Jin-il’s face lit up with genuine surprise. His hands came together in a delighted clap. “You look younger than that, Hyung! Seriously—do you have a girlfriend?” he added with a playful tilt of his head, eyes wide with faux innocence that didn’t quite mask the mischief behind them.

Jongwoo blinked, caught off guard. What kind of question is that? Still, a faint smirk tugged at his lips as he studied the younger man again, this time with a touch more amusement than wariness.

Jongwoo let out a small, awkward laugh, rubbing the back of his neck before folding his arms across his chest. “None at the moment,” he admitted, voice casual but with a faint tinge of something wistful. “But I did before.”

“I see,” Jin-il replied, though his eyes didn’t meet Jongwoo’s anymore. Instead, they dropped—settling on Jongwoo’s arms, now crossed tightly against his chest. His gaze lingered, almost too long, taking in the contrast between the softness of Jongwoo’s expression and the firmness in his build. Jongwoo’s body was lean, sure, but his muscles were defined beneath the thin fabric of his shirt—subtle but unmistakable. Jin-il’s eyes trailed from the curve of his elbows to his hands—those veiny, elegant hands with long, clean fingers and neatly trimmed nails. Something about them was... distracting.

His cheeks began to heat up before he realized it. A delicate flush bloomed across his face—a soft pink he couldn’t hide even if he wanted to.

Jongwoo, meanwhile, tilted his head, brow raised slightly. The younger man had gone unusually quiet. “You okay?” he asked, genuine concern woven through his tone.

The sound of Jongwoo snapping his fingers pulled Jin-il out of his trance. He blinked rapidly, flustered. “Ah—yeah, yeah, I’m fine. Sorry, Hyung,” he said with a sheepish laugh, scratching his cheek. “Kinda zoned out there.”

He quickly reached behind him and brought forward a small plastic container, condensation fogging up the transparent lid. “Here—I made this for you. Jjajangmyeon. The sauce is homemade!” His voice carried a nervous excitement, like he was trying to redeem himself from the strange pause just moments earlier.

Jongwoo blinked in surprise, taking the warm container in both hands. He peered through the lid before looking back at Jin-il with a smile—this time, a real, thankful one. “Wow… Thank you. Really. I’m sorry I don’t have anything to offer in return right now, but I’ll make it up to you.”

Jin-il waved his hands quickly, brushing it off with an easy grin. “No need, Hyung. It’s my pleasure.”

He stepped back toward his door, still smiling but noticeably trying to escape the lingering embarrassment from earlier. “Anyway—I should get going. Didn’t mean to bother you so early!”

“Not a bother,” Jongwoo called out as Jin-il turned to leave. “Thanks again!”

With a final wave, Jin-il disappeared into his apartment, and Jongwoo quietly stepped back into his own, still holding the warm container. The moment the door clicked shut, he glanced at it again, a small chuckle leaving his lips. Strange guy… but kinda sweet.

Jongwoo set the container of jjajangmyeon on the small table, his curiosity piqued. He peeled the lid off slowly, letting the steam rise and brush against his face, carrying with it a surprisingly rich aroma. His brows lifted slightly in quiet surprise—it actually looked good. Really good.

The noodles were thick and glossy, coated evenly in the dark, savory sauce. He picked some up with his chopsticks, watching how they bounced with a slight elasticity. They’re soft, but firm… perfectly cooked, he noted, then took his first bite.

The texture was just right—chewy, satisfying. The sauce followed right after: salty, full-bodied with a deep umami taste, and a subtle touch of sweetness he guessed came from the beef slices, which had likely released their juices while simmering. Then there were the onions—soft, smoky, with just the right amount of char to balance the richness of the sauce.

Jongwoo blinked, chewing slowly, his lips twitching at the corners. Damn… he wasn’t bluffing. This is actually good.

He ate in silence, savoring each bite. The apartment was quiet except for the occasional sound of his chopsticks brushing against the container. There was something strangely comforting about it—sharing a meal made by someone else, someone new. Someone… interesting.

As he finished the last of it, Jongwoo leaned back in his chair, letting out a small breath. Maybe I’ll bring out a few pastries after work. A drink or two wouldn’t hurt either. A faint smirk tugged at his lips. It’s only polite to return the favor.

“What did you just say?”

Soo-Yeol’s voice was rough with sleep and rising frustration, his brows already furrowed before he even opened his eyes fully. It was too damn early for this. He hadn’t even been home—had crashed at the office again, snatching barely an hour of sleep on the lumpy couch in the corner of the room. That peace, however short-lived, ended the moment his colleague shook him awake.

Startled, Soo-Yeol jolted and slipped off the edge of the chair, landing with a dull thud on the cold floor.

“Shit,” he groaned, rubbing the back of his head as he slowly sat up. His limbs felt heavy, eyelids like lead. With a tired grunt, he pulled himself into the chair and slumped at his desk, rubbing his eyes in a futile attempt to shake off the fog clinging to his thoughts.

“Two new cases,” his colleague announced, voice far too awake for this hour. “Looks like a possible serial killer. The patterns match the Muju Serial Killer from Jeollabuk-do.”

That got Soo-Yeol’s attention.

The folder landed on his desk with a soft thump, and Soo-Yeol instinctively reached for it. He opened it, the pages still warm from the printer. As his eyes scanned the contents—crime scene photos, victim profiles, autopsy notes—his fatigue began to wear off, replaced by a slow-burning unease.

“Same bruising. Same injuries. And both victims had something strange in common,” the colleague continued. “After autopsy, the forensic team found traces of aphrodisiacs in their system. Specifically MDMA.”

Soo-Yeol’s eyes snapped up. “MDMA?” he echoed, brows knitting tighter. The name rang loud in his memory, an alarm bell. “That’s... that’s the same stuff from the Domhan case.”

He sat up straighter, now fully awake, mind piecing together the links. “Ten weeks ago, we had reports of a cargo ship smuggling substances from Mexico. Customs enforcement locked down everything. Since then, not a single sighting, not a gram slipping through.”

His voice trailed off, eyes flickering back to the folder. So how the hell is it showing up here now?

A chill ran down his spine—not from fear, but from the weight of the truth slowly forming in his mind. If the Muju Killer was in Seoul… and if MDMA had slipped past customs without a trace…

Something bigger was at play.

“That’s the problem,” his colleague sighed, slumping into the seat across from Soo-Yeol and placing another file on the desk—this one thicker, messier, full of scribbles. There was a heaviness to his movements, as if even he didn’t want to believe what was in it.

Soo-Yeol flipped it open without a word, his fingers already twitching with anticipation. As he turned page after page, his eyes locked on frantic handwriting, messy circles, and pen-drawn arrows crawling across a faded map. It wasn’t just a theory—it was a breadcrumb trail someone had been tracing for weeks.

His eyes narrowed. “Isn’t this… Gangseo-gu’s route?” he muttered, gaze snapping up to meet his colleague’s.

A hum of confirmation. “Yeah. Customs have been keeping their eyes glued to the northern and eastern cruise yards. High traffic, more action. But the Gayang Container Yard? Barely anyone’s looking there. It faces the west, doesn’t get as much cargo traffic. People assumed it wasn’t worth the trouble.”

A sharp exhale left Soo-Yeol’s lungs as he leaned back in his chair, dragging his hands over his face before running them through his messy hair. The exhaustion hit him all over again—but this time it was laced with fury. “That’s such bullshit,” he muttered, voice low and bristling. “They knew how bad the Domhan case got. Ten weeks ago we had mafia trails lighting up every dock in sight, and they’re still sleeping on the west yard?”

His voice rose, the frustration boiling over. “Isn’t it the captain’s damn job to cover blind spots like that?! What if that bastard—what if the Muju Killer’s been smuggling his supply through Gayang this entire time?”

He wanted to slam his fist into the desk, to scream at someone, anyone, but the man across from him wasn’t to blame. Soo-Yeol knew that. He wasn’t on the task force that dropped the ball. He wasn’t the one who got comfortable.

Soo-Yeol clenched his jaw and stood up, snatching his jacket off the back of his chair. “Get your gear. We’re heading to Gayang in an hour.”

His colleague nodded, silent but alert, and Soo-Yeol’s eyes lingered for a beat on the mess of pages on his desk.

If the killer's been hiding in plain sight… then it’s already too late for someone else.

As they pulled up to the desolate stretch of the Gayang Container Yard, a cold wind swept past, carrying with it the faint stench of seawater and rusted steel. The place looked quiet—too quiet. Kwon stepped out of the car, carrying a sturdy black case packed with forensic tools, swabs, chemical test kits, and scanning equipment. Meanwhile, Soo-Yeol was already striding ahead with purpose.

Without hesitation, he marched straight to the rusted metal gate and slammed his fist against it—hard. The loud clang echoed through the empty yard like a gunshot. Kwon flinched slightly behind him, glancing around in embarrassment. He was used to Soo-Yeol’s infamous temper, but every time it showed, it still felt like standing next to a ticking bomb. When Soo-Yeol was fired up, calming him down was like trying to put out gasoline with a spark.

A sharp buzz crackled overhead. A siren blinked red atop a nearby pole and rang out in short bursts—five seconds of sharp warning before the gate groaned open. A lone officer in black gear stepped out cautiously, his boots crunching against the gravel.

Soo-Yeol reached into his coat, snapping out his badge wallet like a reflex. He flicked it open with a practiced hand, his eyes sharp, unwavering.

“Detective Ryu Soo-Yeol. Violent Crimes Division, Moojin Police Station,” he said coldly, his voice clipped and direct. “I’m here to investigate suspicious import and export activity at this site.”

For just a moment—a flicker, a blink—Soo-Yeol caught it. The officer’s eye twitched. Barely noticeable, but to a seasoned detective like him, it screamed louder than words. There was a tremor of anxiety there, a flash of something buried. Apprehension.

Still, the officer kept his face neutral. “Alright then. This way,” he said, turning around with measured steps.

The walk through the yard was longer than it looked. The place was deceptively large, rows of shipping containers stacked high like iron tombs, casting long shadows under the overcast sky. Eventually, they reached the main dock—a massive warehouse sealed tight with rows of imported products shelved neatly, almost too perfectly.

Soo-Yeol's eyes swept across the space with quiet intensity. Labels, serial codes, manufacturing dates—all cataloged and color-coded. But the air felt wrong. Too orderly. Like someone had worked overtime to make it look untouched.

He approached a nearby desk and snatched up a flashlight, flicking it on with a low click before tossing another one to Kwon, who caught it with a nod.

“We split up,” Soo-Yeol said, his tone brooking no argument. “I’ll check this half. You take the far end. Call me the moment you find something that smells off.”

His voice was sharp, steady—but underneath it pulsed an urgency he didn’t show. They weren’t just chasing smuggled goods anymore. If the Muju Killer had ties to this site, then every minute wasted could mean another corpse.

Kwon gave a quiet nod, catching the flashlight in one hand and pulling his camera from the sling bag hanging at his side. Without another word, they split off in opposite directions, boots thudding against the concrete floor of the warehouse. Each aisle felt like a maze—towering shelves lined with neatly stacked boxes, some sealed with industrial tape, others already gathering dust.

They worked in silence, methodically tearing through the cargo. Box after box, row after row. Kwon climbed steel ladders to check higher shelves, while Soo-Yeol moved with sharp precision, his eyes scanning for even the slightest inconsistency. The hours slipped by unnoticed as they became consumed in their search.

By the time they reconvened at the warehouse entrance, the sky outside had dimmed into a dull gray. The faint drone of cranes and container movement hummed in the background, barely noticeable beneath the weight of exhaustion pressing down on both men.

Kwon looked troubled as he approached, brushing his sleeve across his damp forehead. “Sir,” he said hesitantly, “don’t you think something’s… off?”

Soo-Yeol raised an eyebrow, his body language sluggish with fatigue. “Suspicious how?”

Kwon motioned toward the far end of the warehouse. “Column 21. When I checked the contents of the boxes there, they were the only ones filled with food. Everything else—every single other column—was just secured objects, electronics, metals, things you'd expect. But aisle 21? Only food.”

Soo-Yeol narrowed his eyes, curiosity flaring despite his exhaustion. “Food?” he echoed, his voice low.

Kwon turned and led him back down the echoing aisle, their footsteps faint under the harsh fluorescent lights. He pointed toward the second row of shelving.

“There,” he said, gesturing to two inconspicuous cardboard boxes. “One’s dried squid, the other’s MSG packets. I asked the officer on duty if I could collect a sample—he didn’t object.”

From the side pocket of his case, Kwon pulled out a small tray with the opened packets, carefully wrapped. The distinct scent of char lingered from the dried squid, smoky and sharp. The MSG packets looked untouched—clean, harmless.

“The squid tasted normal. Smoky, a little bitter like it had been roasted too long, but no traces of tampering. And the MSG—” he lifted the second packet—“I tested it with Marquis Reagent for MDMA, meth, opiates, even fentanyl. The chemical didn’t react. Completely clear.”

For a moment, Soo-Yeol said nothing. He stared down at the tray, lips slightly parted as if debating whether to believe what he saw. Then he let out a long, bone-deep sigh, rubbing the back of his neck. His eyes were bloodshot, ringed with dark shadows from nights that blurred together without rest. He looked like a man worn thin—not just physically, but from the inside out.

“…So we spent five hours combing through boxes only to find snacks and seasoning,” he muttered under his breath, a bitter laugh escaping. “Perfect.”

He looked at Kwon with tired resolve. “Fine. Contact the other units. Have them sweep the surrounding container yards—Yangcheon, Magok, anywhere close enough to hide something like this. Maybe we were sniffing around the wrong ghost.”

With that, he turned on his heel, the lines in his face carved deeper with every step.

“Let’s go back,” he said, his voice quieter now. Defeated, but not finished.

Jongwoo's shift was winding down. The clock above the coffee machines ticked slowly toward three, its steady rhythm almost lulling him to sleep as he worked through the last batch of orders. His back ached slightly from standing too long, but he stayed sharp, wiping down the counter and organizing receipts.

A coworker passed by, handing him a folded slip of paper. "This one’s a written order," the guy said casually. "Student’s deaf."

Jongwoo took the note and gave a small nod, glancing over the neatly written message. He smiled to himself as he peeled off a sticker and gently placed the note on the cupboard above, reading the words again silently:

‘Sorry, Jongwoo-ssi, I can’t speak. Can I have the walnut maple cream frappe — but instead of walnuts, can it be hazel or chestnut? Whatever’s available. I’m allergic to walnut. 16oz, 25% sugar, please.’

The handwriting was soft, rounded, with gentle loops like someone who took their time and cared about how their words looked. He could almost see the person behind the message—nervous, maybe, but thoughtful.

“Allergic to walnuts, huh?” he muttered, shaking off the lingering drowsiness in his limbs. He set to work immediately, carefully whisking together the right blend of syrups and chilled cream, swapping in a hint of roasted hazelnut for the walnut. No risk, no mistake. He triple-checked the ingredients before pouring the finished drink into the cup. A swirl of frosting crowned the top before he sealed it with a lid.

He walked to the reception counter just as a quiet figure approached—petite, dressed in soft pastels with long, dark hair and a calm, almost ethereal air. She handed him a crisp bill, then tapped her finger against a small box marked TIPS on the side.

Jongwoo blinked, then caught her smile. It was shy, but warm—like sunlight peeking through clouds. She bowed slightly in thanks, and without saying a word, turned and walked away.

“Thanks…” Jongwoo said quietly, though he wasn’t sure if she heard. He stood there a second longer, watching her disappear into the small crowd. Something about her felt gentle. Kind. It made him smile.

“That’s Hwarang,” said Sam, wiping the counter beside him.

Jongwoo nodded as he turned back to rinse the tools he used. “Hwarang looks like a sweet girl.”

Behind him, Sam let out an abrupt snort, hand quickly rising to cover his mouth like he was holding back laughter.

Jongwoo glanced back. “What?”

Sam gave him a sly grin, then said, “Hwarang’s a boy.”

For a moment, Jongwoo stood still. His fingers hovered above the faucet, the gentle stream of water splashing against the metal bowl beneath. “…Come again?”

“She’s a crossdresser,” Sam said matter-of-factly, tapping a pen against the counter. “Not obvious, though. Doesn’t talk much—but I’ve heard her speak. Her voice is soft, high-pitched. Honestly, you wouldn't guess unless someone told you.”

Jongwoo said nothing at first. He picked up the cup, dried it with a towel, placed it carefully on the rack. His hands moved slowly now, his thoughts turning inward. A crossdresser? Or maybe… something more? He thought back to her—Hwarang—with her quiet smile, the softness of her manner, how comfortable she seemed in her skin, even without speaking.

Maybe it didn’t matter. Maybe it wasn’t even his place to categorize her, him, or anyone.

He turned to Sam, his tone relaxed, almost casual. “So, what? Still sweet either way.”

Sam blinked. “Huh?”

“I said Hwarang’s sweet,” Jongwoo said, lips twitching into a grin. “Boy, girl, both, neither—I don’t care. Still took the time to write the nicest order I’ve seen all shift. Doesn’t change the person, does it?”

Sam raised an eyebrow but said nothing.

Jongwoo shrugged, returning to the sink. “World’s already hard as hell. If Hwarang’s just trying to live the way they want… then good for them.”

And with that, Jongwoo turned back to cleaning the cups, the sound of running water steady, like his heartbeat—calm, accepting, and unshaken.

As Sam rambled on about Hwarang—his tone casual, almost too flippant—Jongwoo wasn’t fully listening anymore. Something in his peripheral twitched. A shift of motion. His eyes instinctively darted to the entrance, and his head snapped toward the door just in time to see two men walk in.

Soo-Yeol.

The detective looked like hell—his collar was loosened, beads of sweat clung to his forehead despite the café's cool air, and the way he gripped the strap of his worn leather sling bag spoke volumes. Tense. Unsteady. Like something had just shattered and he was trying to pretend it didn’t.

Beside him stood a familiar face, and Jongwoo’s chest tightened. One of the men from that case a few weeks ago. The grocery parking lot. Hui-Gyeom. The bloody mess. And right there, next to Soo-Yeol now, stood that same man, like nothing ever happened.

Moonjo’s new mask.

Jongwoo blinked, but didn’t let it show on his face. Of course Moonjo would be thorough. He wouldn’t just create a new name—he’d mold an entire life around it. Make friends. Build alibis. Bury the monster under layers of false warmth and carefully measured smiles.

But something was different this time.

Moonjo—no, Kwon—looked drained. Jongwoo had never seen that expression on him before. His usual untouchable, eerily calm demeanor was gone, replaced by eyes that were heavy, jaw tense, posture hunched ever so slightly forward as though holding himself together took effort.

Jongwoo’s voice came automatically, calm and smooth, “Cup of black, no sugar?”

Soo-Yeol blinked, a bit startled. Kwon raised an eyebrow. Even Sam beside him seemed confused by the familiarity. But Jongwoo didn’t flinch.

“Yeah,” Soo-Yeol muttered, his voice strained as he dug through his bag and pulled out a folder. “No sugar.”

Jongwoo gave a short nod and turned to Kwon. “And you?”

Kwon’s voice was soft but clear. “Iced cappuccino.”

Jongwoo got to work. The grinding of beans, the gurgle of hot water, the chilled press of ice—all mechanical, easy motions that helped him mask the swirl of thoughts in his head. Sam stepped in, grabbing the card Soo-Yeol handed over and swiping it quickly before spinning the reader around.

“Total’s ₩5,520,” Sam announced, his fingers dancing over the keyboard. “Would you like any pastries today? Fresh batch just came out.”

Kwon turned to Soo-Yeol, seeking permission with a glance. Soo-Yeol just flicked his hand, eyes never leaving the file he’d opened.

“Get whatever. Just something sweet.”

That tone—exhausted, almost defeated.

“Two slices of cheesecake, then,” Kwon said.

Jongwoo watched the interaction from the corner of his eye. Kwon’s tone was polite, steady, like he was trying to maintain some normalcy. Jongwoo wondered if it was for Soo-Yeol’s sake—or his own.

Sam moved quickly, preparing a tray, sliding two neat slices onto plates. His fingers clicked fast against the keyboard again.

“New total’s ₩8,970,” he said, swiping the card and handing it, along with the receipt, back to Kwon. There was a brief moment of eye contact between them, one of silent acknowledgment. Politeness layered over tension.

Jongwoo placed the drinks on the tray without a word. He looked at Kwon once—really looked—and beneath the faint tiredness and the neat clothes and the passable smile, he saw it.

The cracks.

But he said nothing.

Kwon offered a quiet “Thanks” and carried the tray to where Soo-Yeol had slumped into a chair, binder spread open, fingers massaging his temples.

Jongwoo exhaled slowly, his hands resting on the cool steel of the counter.

So even Moonjo could look tired.

Even monsters had moments of silence.

And Jongwoo wasn’t sure if that made him more human—or more terrifying.

“Sir, if it isn’t Gayang, then where else would the drugs be imported?”

The question cut through the low hum of the café like a flicked stone skipping across still water.

Soo-Yeol let out a groan—not of irritation, but exhaustion. His fingers, stiff from tension, found the zipper of his weathered leather bag. He yanked it open and pulled out his laptop, placing it on the table with a dull thud. The screen lit up. A flurry of clicks followed as he sifted through a mess of open applications, folders, and bookmarked pages until a map appeared.

Jongwoo, from the counter, watched without a word. His hands moved on autopilot—rinsing cups, wiping steam nozzles—while his ears stayed trained on every word.

Soo-Yeol’s cursor floated across the map like a hesitant hand searching in the dark. He clicked—once, twice—placing red pins that marked specific intersections. “Incheon doesn’t give us much,” he muttered, his voice taut. “Some of the bigger companies in the area use that to their advantage. Less paperwork. Less oversight. It’s clean on the surface but dirty underneath.”

His finger dragged across the touchpad, zooming into two routes—one leading to Uiwang, the other toward Mullae-dong.

“But these two…” he muttered, circling the routes with the digital pen. “There’s a shared path before they split. Just past Gayang. That strip? It’s the key. One road, two exits.”

Kwon leaned in, eyes narrowing. “You’re suggesting the drugs are moving between both routes?” he asked, pointing to the triangular landmass caught between the branching roads. It was vast, open on the map—but in reality, Jongwoo knew, filled with layers of industry, traffic, and endless places to hide.

“That’s the theory,” Soo-Yeol said, nodding. “But there’s a problem. Uiwang and Mullae-dong have had customs teams crawling over them for hours. We just came back from there. Nothing. Not even a scent of it.”

Kwon nodded, understanding, his pen scratching against the surface of his journal. He sketched a crude version of the map, marking the two routes and the wedge of land they boxed in.

And that’s when a voice broke in—soft, but certain.

“Wouldn’t it make more sense if they were using a different warehouse altogether?”

The two detectives turned, caught off guard. Jongwoo stood there behind the counter, half-distracted from his task of rearranging cups. His eyes were fixed not on them, but on the rough map Kwon had just drawn—his gaze sharp, analytical.

Kwon blinked. Soo-Yeol frowned faintly.

“You think so?” the older detective asked, curious now.

Jongwoo nodded once, slowly stepping out from behind the counter, wiping his hands on a towel. “You said customs already swept the yards. If there’s nothing there, then maybe the drop zone isn’t in the yards. Maybe it’s just near enough to them to look like it belongs.”

He tapped Kwon’s drawing gently. “Here, this space between the two routes—it’s wide. Industrial land, right? Warehouses, most of them probably unregistered or bought under fake companies. Could be a front.”

Soo-Yeol leaned back, exhaling slowly. His eyes flicked between the map and Jongwoo. “You’ve been paying attention.”

“I make coffee,” Jongwoo replied, folding the towel, “but I’ve got eyes. And I remember things.”

Kwon smiled faintly at that, while Soo-Yeol rubbed his chin, lost in thought. A beat passed in silence as they all stared at the triangle on the page—the gap between routes, the land untouched by suspicion.

Maybe that was the point.

“Look here,” Jongwoo said, reaching across the table. His fingers hovered over the map on the laptop screen, then pointed precisely at the center—where the triangular patch of land lay like a forgotten sliver between two arteries.

“This gap between the routes—it’s wider in person than it looks on this map. The trees there are taller, thicker too. It’s not an open field; it’s shaded, covered. If someone were transporting drugs between Uiwang and Mullae-dong, they’d have to pass through this.” He tapped, then took the mouse without waiting for permission, circling the critical bend with practiced ease.

“This—this is where the customs checkpoints are set up,” he explained. “They don’t see much traffic, so inspections are stricter. Fewer cars means more time to check cargo. If someone were smuggling drugs from Gayang, they wouldn’t risk passing through here unless they were idiots. So if they’re smart—and they are—then there’s only one answer.”

He looked up, eyes cold with realization.

“There’s a warehouse. Hidden. Somewhere customs can’t touch.”

There was a snap—the sharp, unmistakable sound of fingers clicking together. Soo-Yeol’s eyes lit up, the kind of spark detectives get when a knot in a case finally begins to loosen.

“Bingo,” he muttered, almost impressed. “That actually makes a hell of a lot of sense.”

But then, his excitement stalled.

Something didn’t sit right.

He turned to Jongwoo, his smile faltering, and narrowed his gaze. “Wait a minute.”

Jongwoo tensed. His hands retreated to his sides, and his jaw tightened, but he kept quiet.

Soo-Yeol leaned in slightly, suspicion crawling up his spine. “How do you know about the checkpoints?” he asked, slowly, carefully. “They’re not listed on public maps. Not even the official ones. We don’t announce their locations unless we want smugglers to go the other way.”

The weight of the question lingered in the air like static.

Jongwoo hesitated. His throat moved, dry. “I just… remember things,” he finally said, voice low. “From someone. Someone who helped me… before.”

It wasn’t a lie, but it wasn’t enough for Soo-Yeol either. His brows furrowed deeper.

“Helped you?” he repeated, unconvinced. “Who the hell teaches someone checkpoint strategy over coffee?”

Jongwoo looked away, jaw clenching. His grip on the towel at his side tightened just a bit, knuckles paling.

What Soo-Yeol didn’t know—couldn’t know—was that Jongwoo hadn’t pieced this together on his own. The knowledge came from someone who had once dragged him out of the hellhole he used to call a life: Junghwa. A woman who used to wear a badge and carry a gun. Who used to speak in codes and tactics. Who once arrested people like him, but saw something else.

She was long gone from that world now. After what happened three years ago—the night Jongwoo nearly didn’t make it—she resigned without fanfare. No press. No ceremony. These days, she stood in front of blackboards, not crime scenes. She read poetry to high schoolers in Seoul instead of arrest warrants.

But her lessons remained etched in Jongwoo’s mind. They’d drilled maps. Routes. Patterns. Weak points in enforcement. All those restless nights when he couldn’t sleep, she’d made sure he’d remember something useful. Something to keep him alive.

And now, it came pouring out, without meaning to.

He hated that it showed. Hated the look Soo-Yeol gave him.

Because if the detective kept digging—if he asked just one more question—he might find out more than just the truth about checkpoints.

He might find out what Jongwoo used to be.