Chapter 77: Rats in the Walls

The new safe house smelled like mold and old cooking oil.

Jin dropped his bag on the concrete floor of what had been, until three days ago, a kimchi storage warehouse in Mapo-gu. The underground level was cold enough that his breath fogged, and the fluorescent tubes overhead buzzed with the particular frequency that made his teeth itch. Thirty-one people were crammed into a space designed for industrial refrigeration units, and the collective body heat hadn't yet taken the edge off.

"This is temporary," Sung-joon said, for the fourth time that morning. He had his tablet out, scrolling through rental listings with the focused intensity of a man who'd once managed procurement for a mid-size logistics company. Before awakening had ruined his life. Before a glitched ability—inventory sense that worked on people instead of products, letting him feel the rough location and condition of anyone he'd catalogued—had gotten him labeled defective and fired. "I've got three possible locations in Yeongdeungpo. One in Guro. None of them are great, but they're better than freezing in a basement that smells like fermented cabbage."

"I like the smell," said Baek Yuri from across the room. She was wrapping a bandage around her own forearm, her glitched healing ability occasionally sparking green light that fizzled out before doing anything useful. "Reminds me of my grandmother's house."

"Your grandmother's house have bullet holes in the walls too?"

Yuri glanced at the pockmarks near the loading dock entrance. "No. That's new."

Jin left them to it and walked to the far corner where he'd set up something that generously could be called a command area. A folding table. A map of Seoul with red circles around locations they'd already lost. A cheap prepaid phone that Sung-joon swapped out every forty-eight hours.

Seven red circles on that map now. Seven safe houses, supply caches, and meeting points that the E-Rank hunter gang called the Iron Wolves had found and trashed in the last three weeks. Seven locations that should have been secure.

Jin stared at the map until the circles blurred. Then he pressed his thumb into the scar on his chest—the jagged line from his botched awakening—and thought about what kind of person sells out their own people.

---

"We need to talk about it."

Min-ji's voice came from behind him. She'd been treating Forgotten members since dawn, and her white coat—she still wore the damn thing, Association insignia carefully removed but the outline still visible like a ghost—was spotted with someone else's blood.

"Talk about what?" Jin didn't turn around.

"Are you being deliberately obtuse, or has the cold affected your cognitive function?"

That was Min-ji. Questions instead of statements. Medical terminology even when she was pissed. Jin finally turned to face her. She stood with her arms crossed, one hand still holding a roll of gauze, her expression caught between professional concern and personal frustration.

"The mole," she said. "The informant. Whatever clinical term you prefer for someone who's been betraying us to Hwang Do-yun's people."

"Yeah." Jin rubbed the back of his neck. His muscles were stiff—three hours of sleep in a cold basement did that. For a normal person, rest would help. For Jin, rest was erosion. His body drained during stillness, energy bleeding out like a slow leak. Combat charged him. Pain fed him. Sleep was poison he couldn't fully avoid. "I know."

"Then why haven't you—"

"Because I don't know who it is." The words came out harder than he intended. Jin caught himself, exhaled. "I have thirty-one people in this room, Min-ji. Six weeks ago I had forty-three. I've lost twelve—four dead, eight scattered when the Hapjeong safe house got raided. Every single person in here followed me when it would've been easier to disappear. And one of them has been handing our locations to the Iron Wolves."

Min-ji's arms loosened. She sat on an overturned crate across from him, close enough that he could see the dark circles under her eyes. She hadn't been sleeping either, though for her, sleep actually helped.

"Have you considered that the information leak might not be intentional?" she asked. "Some of our members have glitched abilities that produce unpredictable effects. Soo-min's spatial echo, for instance—it creates temporary duplicates of her surroundings that anyone with detection skills could theoretically—"

"I thought about that. Ran it past Sung-joon. The timing doesn't match. The Iron Wolves hit the Hapjeong location six hours before we were scheduled to rotate there. They knew our schedule, not just our position." Jin pulled the folding chair closer to the table, metal legs scraping on concrete. "That's not a passive leak. Someone told them."

Min-ji was quiet for a moment. When she spoke again, her voice had that trailing quality it got when emotions pushed past her clinical armor. "If it's one of our people... if someone we've been protecting has been..."

"Yeah."

"The trust damage alone would be... I mean, the group's cohesion is already fragile. After the peace offer—" She stopped herself.

Right. The peace offer. Three weeks ago, a message had come through back-channels that someone high up in the Association—connected to the Council of Nine, maybe even Chairman Cho Hyun-woo himself—wanted to negotiate terms. Recognition for the Forgotten. Protected status for defective awakeners. A seat at some lower-level administrative table.

Jin had believed it. Not all of it, not the details. But he'd believed the intent. He'd thought, maybe, that the publicity from their raids on E-Rank hunting parties had made the Association realize that ignoring defectives was costlier than accommodating them.

The "negotiation" had been a setup. A meeting point in Yeouido that turned into an ambush by three squads of Association-contracted hunters. Level 60s and 70s, nothing Jin couldn't handle individually, but they hadn't come for him. They'd gone after the Forgotten members he'd brought as delegates. Two injured. One—Park Dae-sung, forty-seven years old, ability: glitched spatial awareness that gave him migraines instead of enemy detection—captured.

They still didn't know what had happened to Dae-sung. The Association's official response to inquiries was that no such operation had occurred and no such individual was in custody.

"The peace offer was my fault," Jin said.

"That's not what I was going to say."

"But it's true. I wanted it to be real. That was stupid."

"Having hope for a diplomatic solution isn't inherently—"

"It is when you know the other side considers you a bug in their system." Jin pulled up his status, a reflex born of weeks of paranoid checking.

**[Jin Seong-ho | Level: -22 | Class: Inverse | Status: Active]**

**[HP: 2,847/2,847 | MP: N/A]**

**[Active Abilities: Pain Drinker (Lv. 4)]**

**[Passive: Inverse Constitution, Damage Absorption]**

**[WARNING: ANOMALY CLASSIFICATION ACTIVE]**

**[ASSOCIATION THREAT LEVEL: NUISANCE-CLASS]**

Nuisance-class. The Association's way of saying he wasn't worth sending anyone above E-Rank after. Which was either a genuine assessment or bait to make him complacent.

"I need to find the mole before we move again," Jin said. "If I don't, it doesn't matter how many safe houses Sung-joon finds. They'll just burn through them."

"And how exactly do you plan to identify them? We don't have interrogation facilities. We don't have lie detection. We barely have functioning plumbing." Min-ji gestured at the warehouse around them. "What we have is thirty-one scared, cold, hungry people who followed a Level -22 defective into a basement because the alternative was worse."

Jin almost smiled. "Your bedside manner is really something."

"I'm not your doctor. I'm your..." She paused, searching for the word, and Jin watched her abandon several options in real time. "I'm the person who's going to remind you that paranoia is as dangerous as betrayal. If you start interrogating your own people, you'll lose them faster than any informant could arrange."

She was right. He hated that she was right.

---

Jin spent the next four hours doing what he did best: getting hurt on purpose.

The warehouse connected to a series of sub-basements that tunneled into Seoul's old drainage infrastructure. Down there, in the dark where the concrete gave way to older stone, Grey-Class monsters spawned from the ambient dimensional energy that bled through micro-gates too small for the Association to bother closing.

Grey-Class. Bottom of the food chain. Most awakeners wouldn't waste the effort.

Jin hunted them like a starving man at a buffet.

The first was a Sewer Lurker—a thing like a dog crossed with a crab, all chitinous limbs and snapping mandibles. It lunged at him from a drainage pipe, and its claws raked across his shoulder.

Heat bloomed where the wounds opened. Not the searing heat of injury—something warmer, deeper, like stepping into a bath after a long day. His muscles relaxed. The stiffness from sleeping on concrete melted.

**[DAMAGE RECEIVED: 47 HP]**

**[PAIN DRINKER ACTIVATED]**

**[HP CONVERTED: +71 HP]**

**[NET GAIN: +24 HP]**

The Lurker died badly. Jin's fist caught it mid-leap and caved in its skull, chitin cracking like an egg. Not because he was strong—Level -22 wasn't strong by any normal measure—but because everything about him worked backwards. The damage it dealt fed him. The effort of combat energized what rest could not. And the Lurker, designed by whatever dimensional logic governed monster spawns, had no framework for fighting something that wanted to be hit.

Three more waited in the tunnel junction ahead. Jin rolled his shoulders, feeling the warmth of the first Lurker's attack still spreading through his body, and walked toward them.

This was the part nobody talked about. The part Min-ji watched with professional concern and personal unease. Jin Seong-ho, the Negative Level Hero, the defective awakener who'd become a symbol—he needed violence the way other people needed sleep. Not emotionally. Physically. His body demanded damage the way lungs demanded air. Without it, he deteriorated. His reflexes slowed. His thoughts fogged. The three hours of sleep in the basement had left him feeling like he'd been sick for a week.

Twenty minutes of getting clawed, bitten, and slammed into walls by Grey-Class monsters fixed all of it.

He killed the last Lurker by letting it bite his forearm, absorbing the damage into a rush of warmth that sharpened his vision, then driving his knee into its throat until it stopped moving. Monster blood—dark, smelling like copper and wet stone—dripped from his jacket. His HP sat comfortably above max from the repeated Pain Drinker conversions, the excess fading slowly.

**[EXPERIENCE GAINED: 312 XP]**

**[LEVEL PROGRESS: -22 (67% to next descent)]**

Two-thirds of the way to Level -23. Each level came slower now, the experience requirements scaling in ways that the System clearly hadn't designed for a negative-value edge case. At this rate, he'd hit -25—and whatever waited there—in maybe two weeks. If he hunted aggressively. If the Iron Wolves didn't find them first.

Jin leaned against the tunnel wall, catching his breath. Not tired—combat didn't tire him—but processing. The warmth from absorbed damage pulsed through his body in waves, each one clearer than the last. He could feel his senses sharpening, his awareness expanding. Down here, alone in the dark with monster blood on his hands, he felt more alive than he had in days.

That scared him more than the mole did.

---

He climbed back up to find the warehouse in quiet chaos.

Sung-joon met him at the sub-basement entrance, tablet clutched like a shield, his face carrying the specific expression of a man delivering bad news to someone who was already having a bad day.

"Two things. Bad and worse." Sung-joon fell into step beside Jin as he walked toward the main area. "Bad: the Guro location fell through. Landlord got visited by someone from the Association's local office. Nothing official—just a friendly reminder about the penalties for harboring unregistered awakeners. He pulled the listing."

"And the worse thing?"

"Choi Won-shik wants to talk to you."

Jin stopped walking. Choi Won-shik was one of the older Forgotten members—mid-fifties, former construction worker, ability: structural intuition that let him sense the load-bearing weaknesses in any building. Useful, in theory. In practice, the ability triggered randomly and gave him splitting headaches. He'd been with them since the second week, quiet, reliable, the kind of guy who kept his head down and did whatever task Sung-joon assigned without complaint.

"About what?"

"He says he knows who the informant is."

Jin looked at Sung-joon. Sung-joon looked back with the careful neutrality of someone who'd been a middle manager long enough to know that every workplace accusation was either critically important or catastrophically wrong, with nothing in between.

"Where is he?"

"Loading dock. I told him to wait there. Figured you'd want privacy."

---

Choi Won-shik sat on a stack of pallets near the loading dock's rusted roll-up door, his hands wrapped around a cup of instant coffee that had stopped steaming twenty minutes ago. He was a big man, broad-shouldered, with hands scarred from decades of manual labor and the particular stillness of someone who'd decided to say something difficult and was waiting for the right moment.

Jin pulled up a folding chair and sat across from him. The loading dock was cold—colder than the main warehouse, wind seeping through gaps in the door—and Jin's body registered the discomfort as a mild drain on his already depleted reserves. He needed to get hit again soon. Another hour of sitting still and he'd be foggy.

"Sung-joon says you know something."

Won-shik took a sip of his cold coffee and grimaced. "I've been watching people. It's what I do—you get good at reading a building's weak points, you start reading people's weak points too. Same instincts, different material."

Jin waited. Some people needed space to get to the thing they wanted to say.

"Kim Jae-min," Won-shik said. "The kid with the sound-mimic ability."

Jae-min. Twenty-two, maybe twenty-three. Thin, nervous, ability: could replicate any sound he'd heard, but couldn't control the volume. Sometimes whispered conversations came out of him at megaphone levels. He'd joined five weeks ago after getting kicked out of a shared apartment building because his ability kept going off at 3 AM, replaying traffic sounds and conversations at full blast.

"What about him?"

"He disappears. Not for long—thirty, forty minutes at a time. Always has an excuse. Bathroom. Fresh air. Headache." Won-shik set down his coffee. "Three days before the Hapjeong raid, I saw him on the phone. Not one of Sung-joon's burners. His own phone. Which he told everyone he'd thrown away when he joined."

"Could be calling family."

"Could be." Won-shik's eyes were steady. "But I checked after. He was in the stairwell on the fourth floor. The one with the best cellular reception. And he looked scared. Not sad-scared, like you'd look calling a parent who doesn't want to hear from you. Scared like someone who's doing something they know is wrong."

Jin's chest tightened. He thought about Jae-min—the kid's nervous laugh, the way he flinched when his ability misfired, the grateful look on his face when Sung-joon had found him a sleeping bag that wasn't torn. A kid who'd been thrown away by society for something he couldn't control. Exactly the kind of person the Forgotten existed to protect.

"That's circumstantial," Jin said.

"I know. But there's more." Won-shik leaned forward. "Last week, after we moved here, I tested something. I told Jae-min—only Jae-min—that we were thinking about moving a supply cache to a restaurant basement in Sinchon. Gave him a specific address. I made it up. The restaurant doesn't exist."

"And?"

"Yesterday, Baek Yuri went past that address on a supply run. She saw two guys sitting in a car across the street. Hunter badges on their jackets. Iron Wolves insignia."

The cold in the loading dock felt sharper. Jin's hand found the scar on his chest, fingers tracing the familiar ridge of damaged tissue.

"You set a trap," he said.

"I set a test." Won-shik's voice carried no satisfaction. "I'm sorry. I should have come to you first. But I needed to know. We can't keep running if someone's telling them where to find us."

Jin sat with it for a long moment. The dock groaned with a gust of wind. Somewhere in the warehouse behind them, someone coughed, and the sound echoed off the concrete like it belonged to a much larger, emptier space.

"Don't tell anyone else," Jin said. "Not yet."

"What are you going to do?"

Good question. Jin had no interrogation training. No experience with informants or double agents. Six months ago he'd been a failed awakener sleeping in a goshiwon the size of a closet, wondering if his negative level meant he'd die alone. Now he had thirty-one people depending on him and one of them was selling them out, and his entire strategic playbook was "get hit until the problem goes away."

"I'll figure it out," Jin said. "Just—keep watching him. And don't tell anyone. If Jae-min knows we're suspicious, he bolts, and we lose our only lead on how the Iron Wolves keep finding us."

Won-shik nodded once, picked up his cold coffee, and left.

Jin stayed in the loading dock, alone with the wind and the rust and the growing certainty that this was about to get much worse before it got anything resembling better.

---

Night settled over the warehouse like a fever.

Jin made rounds, checking on people who needed things he couldn't provide. Warm food—they had instant ramen and a hot plate. Medical supplies—Min-ji stretched what they had, but two members needed medications that required prescriptions and legal identities. Hope—that was the hardest one. Jin could fight monsters, absorb damage, turn pain into power. He couldn't manufacture a reason to believe tomorrow would be better than today.

He passed Jae-min's sleeping area and made himself not look. Not stare. Not let anything in his expression betray what Won-shik had told him. The kid was awake, sitting cross-legged on his sleeping bag, earbuds in, nodding to music only he could hear. He caught Jin's eye and gave a small wave.

Jin waved back. His stomach felt like something had crawled into it and died.

At midnight, Min-ji found him in the command corner, staring at the map of Seoul.

"Have you eaten today?" she asked.

"Define eaten."

"Consumed calories sufficient to maintain basic metabolic function."

"Then no."

She set a cup of instant noodles in front of him. The steam curled upward in the cold air, and Jin wrapped his hands around the styrofoam for warmth he couldn't keep. In twenty minutes, whatever heat the food provided would drain from him, his inverse constitution treating nourishment the way a normal body treated a mild toxin—processing it, using what it could, rejecting the comfort.

"You spoke with Won-shik," Min-ji said. Not a question.

"How'd you know?"

"You came back from the loading dock looking like you'd been diagnosed with something incurable. Won-shik came back looking like the doctor who'd made the diagnosis. It wasn't a difficult differential."

Jin slurped noodles and said nothing.

"You don't have to tell me who. But if there's a medical reason I need to know—stress reactions, potential for self-harm among our members, anything that could become a health crisis—"

"It's not medical." Jin set down the cup. "Not yet."

Min-ji sat across from him, pulling her coat tighter. "You look terrible, by the way. Your skin has that grayish cast it gets when you haven't been injured recently enough. Have you considered that your aversion to self-care is itself a kind of..."

"Don't."

"Right. Sorry." She wasn't sorry. She was noting it for later, filing it in whatever mental chart she kept of Jin's declining physical baseline during periods of inactivity. "Sung-joon says the Yeongdeungpo locations are still viable. We could move as early as—"

A sound cut through the warehouse.

Not loud. Not dramatic. Just Sung-joon's voice, pitched in the specific register that Jin had learned to associate with immediate, serious problems: "Jin. Come here."

Jin was on his feet before the second word. The lethargy of hours without combat dragged at him, but adrenaline compensated—his body knew the difference between rest and threat, even if both felt like erosion from the outside.

Sung-joon stood at the stairwell entrance to the main floor, his tablet held up so Jin could see the screen. A security app—cheap, civilian grade, the kind you'd use for a home camera system. Sung-joon had wired four of them around the warehouse perimeter when they'd moved in.

The north camera showed the alley behind the building. Two figures standing under a broken streetlight. Dark jackets. The reflective patches on their shoulders caught the camera's low resolution just well enough to make out the design.

Fangs. Silver, on black. The Iron Wolves' insignia.

"Scouts," Sung-joon said. His voice was controlled, but Jin could read the fear underneath. Sung-joon was good at hiding it. Not good enough. "They've been there for eleven minutes. I checked the other cameras. Two more on the south side. And there's a van parked on the main road that wasn't there an hour ago."

Six people minimum. Probably more in the van. The Iron Wolves ran squads of eight to twelve for operations against defective groups. Their leader, Hwang Do-yun—Level 87, fire manipulation, a genuine sadist who'd found in E-Rank hunter work a legal outlet for hurting people who couldn't fight back—liked to surround a position before moving in. Cut off exits. Then burn.

Jin looked at the camera feed. At the Iron Wolves scouts who stood with the comfortable posture of hunters who knew exactly where their prey was. Who weren't hiding. Who wanted to be seen.

"They found us," Jin said.

Min-ji appeared at his shoulder. She looked at the screen, then at Jin, and in the cold fluorescent light he could see her already calculating—triage protocols, evacuation priorities, which of the thirty-one sleeping people in this basement could run and which would need to be carried.

"How long do we have?" she asked.

Sung-joon checked his tablet. "If they're following their usual pattern? They'll wait for confirmation that all targets are inside, then move at dawn. Four hours, maybe five."

Four hours. Thirty-one people. One exit they knew about, maybe two if the sub-basement tunnels connected to a route that wasn't collapsed or monster-infested.

And somewhere in that group of thirty-one, someone had made a phone call that led the wolves right to their door.

Jin's hand found his scar again. He pressed hard enough to feel the ridged tissue under his shirt, the permanent reminder of the day the System had looked at him and said *error*.

"Wake everyone up," Jin said. "Quiet. No lights."

Sung-joon moved.

Min-ji stayed. "What are you going to do?"

Jin looked at her. In the dim light, her face was all sharp angles and worry, the clinical mask she wore like armor showing its cracks. He wanted to say something reassuring. Something that would smooth the furrow between her eyebrows and let her believe, for even a second, that this was manageable.

But Jin Seong-ho didn't say things like that. He'd learned, somewhere between Level -1 and Level -22, that comfort built on lies was just another kind of damage—the kind Pain Drinker couldn't convert.

"Something stupid," he said. "Probably."

Min-ji's mouth thinned. She turned and walked toward the sleeping area, already shifting into triage mode, her steps purposeful and her hands steady in the way they only got when everything was falling apart.

Jin watched the camera feed. The scouts hadn't moved. Patient. Professional. They had all the time in the world.

He didn't.