The military sent a van with no windows and a driver who didn't blink enough.
Sera sat in the back with Beaker's carrier on her lap and three duffel bags of equipment that the Association man had let her pack under supervision. He'd watched her load vials of reagents, a portable centrifuge, and seven notebooks filled with handwriting so dense it looked like an ink spill, and he'd said nothing until she reached for the jar of basilisk venom on her shelf.
"That's confiscated material."
"That's my retirement fund."
"Ms. Noh—"
"Fine." She'd left the venom. She'd also left a decoy jar. The real basilisk venom was in a mouthwash bottle at the bottom of her toiletries bag, because nobody in the history of military confiscation had ever unscrewed a tube of toothpaste to check for war crimes.
The van drove for ninety minutes. No turns for the last forty, which meant highway, which meant they were leaving Seoul. Beaker slept through the whole thing. Sera counted seconds between road bumps to estimate speed, then gave up because the math was making her carsick and she had more important calculations running.
Divine-class. The colonel had said divine-class.
The System ranked everything on a scale that topped out at SSS, and in six months of brewing, Sera had touched the bottom edge of S-rank exactly once. That one potion — the paralysis mist — had required ingredients worth more than her apartment, three failed batches, and a nosebleed that lasted four hours. S-rank was the ceiling of what she could reach on a student's budget with stolen dungeon drops and grocery store supplements.
Divine-class wasn't on the scale. Divine-class was the scale looking up and seeing God.
She needed to think about this differently. Not as a recipe. Not yet. A recipe required ingredients, ratios, methodology. She didn't have any of those. What she had was a target — something that registered as divine on military deep-scan satellites — and a two-year deadline.
Start with the target. Work backward. Figure out what kills a god, then figure out how to brew it.
Simple.
The van stopped. The driver opened the rear doors, and Sera stepped into a parking garage that smelled like concrete dust and ozone. Two soldiers flanked an elevator. Neither of them looked at her, which was its own kind of statement.
"Floor?" one asked.
"She goes to B4," the driver said.
Four floors underground. Sera's apartment had been on the third floor above ground, and the ceiling still hadn't contained her explosions. She wondered what four floors of earth and concrete could do against the things she planned to create.
Not enough, probably.
---
The lab was beautiful.
Not in the way a sunset was beautiful, or a painting, or any of the things normal people found aesthetically pleasing. It was beautiful the way a surgical theater was beautiful — everything exactly where it needed to be, every surface designed to contain disaster.
Sixteen hundred square feet. Blast-rated walls with composite shielding rated for A-rank energy discharge. A ventilation system with seven-stage filtration that could handle neurotoxic vapor, radioactive particulate, and — according to the spec sheet taped to the wall — "anomalous gaseous entities." Fume hoods. Autoclave. Mass spectrometer. High-pressure reactor. A cold storage unit the size of her old bedroom, currently humming at minus-forty Celsius.
And the workbench. God, the workbench. Six meters of seamless mana-resistant composite with integrated drainage, embedded measurement sensors, and adjustable height controls. Sera ran her hand across it and almost made a sound that would've been inappropriate in a military facility.
"This is mine?" she said to the soldier who'd escorted her from the elevator.
"Colonel Hwang's orders. Everything on this floor is assigned to the Brewing Division."
"Division implies more than one person."
"You're the division, ma'am."
"Don't call me ma'am. I'm twenty-seven and I look like I haven't slept in a week." She paused. "Because I haven't slept in a week. Different issue."
She set Beaker's carrier on the workbench — the cat sniffed the air, decided the lab met his standards, and began exploring — and turned to the cold storage unit. Through the frost-rimed window, she could see shelves. Rows and rows of shelves, each lined with containers in standardized military packaging.
She opened the door and felt [Brew] activate before she'd consciously reached for it.
The sensation was hard to describe to non-brewers, mostly because there were no other brewers. [Brew] processed ingredient proximity like a sixth sense — a branching awareness of potential combinations that lit up in Sera's mind like phosphorescence in dark water. Hold two compatible ingredients near each other, and she could feel the possible potions shimmering between them. Hold ten, and the probability trees multiplied into forests.
She was standing in a forest now.
The military had stockpiled dungeon drops from every cleared dungeon in South Korea. Mana crystals in six purity grades. Monster parts sorted by species and preservation method — shadow wolf pelts, iron beetle carapaces, troll blood (anticoagulated), basilisk scales, wyvern bone powder, drake liver extract. Processed reagents: distilled mana solution, crystallized gate energy, purified corruption samples in triple-sealed containers that made Sera's fingers itch.
[Brew] screamed with potential. Hundreds of combinations she'd never had the ingredients to try. Thousands of potions that had existed only as theoretical branches in her probability trees were suddenly achievable, right here, right now.
She grabbed her notebook and started cataloging.
Twenty minutes in, she stopped.
"Where's the organic base stock?" she said aloud.
No one answered. She was alone in the lab. Right. The soldier had left.
She looked at the shelves again. Mana crystals, yes. Monster parts, yes. Processed reagents, yes. But the military had stocked their ingredient vault the way a weapons manufacturer would — organized by what it could kill, not what it could become.
No honey. No coffee. No vinegar, no cooking oil, no fermented soy paste.
The military didn't understand that her best potions used both. Basilisk venom and honey. Drake liver and instant coffee. The mundane was the catalyst — the thing that made the magical ingredients play nice with human biology.
"I need a grocery list," she muttered, writing *HONEY (ACACIA, NOT CLOVER)* in capital letters and underlining it three times.
She also needed — she flipped through the containers more carefully — slime cores. They had wyvern bone but no slime core. Shadow wolf fur but no cave moss. Drake liver but no dungeon water.
The stockpile was impressive for making weapons. It was useless for making potions that people could actually survive drinking.
Sera closed the cold storage door, pulled out her phone, and realized she had no signal. Four floors underground, in a military facility, with no cell reception.
She kicked the workbench. Beaker looked at her with the particular disdain that cats reserve for people who damage furniture.
"I need to talk to someone," she told the cat.
The elevator opened.
---
The man who stepped out was built like a refrigerator — wide, dense, and giving the impression that he could keep things cold indefinitely. He wore a military-issue black tactical suit with no insignia and carried nothing except a manila folder. His hair was cropped close enough to see scalp, and his face had the kind of stillness that came from either deep meditation or complete vacancy.
He stopped three meters from Sera. Looked at her. Looked at the lab. Looked at Beaker, who had climbed on top of the mass spectrometer and was grooming himself.
He held out the folder.
Sera took it. Inside was a single sheet of paper with her photo, her Utility-class license number, and a brief paragraph:
*SUBJECT: Noh Sera. CLASSIFICATION: Strategic Asset, Tier 1. ASSIGNMENT: Special Hunter Affairs, Brewing Division. NOTE: Subject has no combat training, no physical augmentation, and no defensive abilities. Subject has destroyed three personal residences through experimental accidents. Subject's creations include items rated up to S-rank in lethality. Protect the subject. Do not interfere with her work. Do not consume anything she offers you.*
Below the paragraph, in smaller text: *Assigned protective detail: Sgt. Park Min-su.*
Sera looked up from the paper. "You're my bodyguard?"
He nodded.
"Do you talk?"
"Yes."
She waited. He didn't elaborate.
"Okay," she said. "I don't need a bodyguard. I'm in an underground military bunker. What's going to attack me down here?"
He looked at the cold storage unit. Then at the scorch marks Sera had already left on the workbench from unpacking a leaky vial. Then at her.
"You," he said.
Sera opened her mouth. Closed it.
"Fair point," she admitted. "But I've survived this long without—"
"Three apartments."
"Those were controlled demolitions. Mostly." She crossed her arms. "Look, Sergeant Park, I work alone. I don't like people in my lab. People breathe, they fidget, they ask questions. All three things contaminate experiments."
He walked to the far corner of the lab — the corner farthest from the workbench, the fume hoods, and the cold storage — and stood there. Arms at his sides. Back straight. Eyes forward.
"That's still in the lab," Sera said.
He didn't move.
"Fine. Stay. Don't touch anything, don't breathe near my workbench, and if I say 'down,' you drop to the floor immediately, no questions."
He nodded once.
Sera turned back to her workbench and tried to ignore the feeling of being watched. It lasted about four minutes, which was how long it took for [Brew] to drag her attention into the probability trees and drown out everything else.
---
Her first experiment in the new lab started at 2 AM.
She'd spent six hours cataloging ingredients, writing requisition lists, and arguing with the facility's supply officer over the phone they'd finally provided — a landline, hardwired, monitored. She'd asked for twenty-three items. The supply officer had approved nine.
"I need acacia honey. Non-negotiable."
"Honey is not a classified military ingredient, Dr. Noh."
"It's not 'doctor' yet, I abandoned my PhD to brew illegal potions for your boss. And honey is the most important ingredient in my entire methodology. Without it, half my potions are either lethal or permanent. Do you want lethal and permanent?"
"I'll... put in a request."
"Also instant coffee. The cheap kind. Brand doesn't matter but it has to be instant, the freeze-dried granules interact differently with mana than brewed coffee and I do not have time to explain the thermodynamics to you."
She'd also requested slime cores, dungeon water, cave moss, grave dirt, living fungal samples from any B-rank or above dungeon, and — this was the one that had made the supply officer go quiet for thirty seconds — a sample of gate energy in its raw, unprocessed form.
"That's... gate energy is classified as a strategic resource."
"I'm a strategic asset. We should get along."
He'd said he'd escalate the request. Sera had hung up and started working with what she had.
The experiment was simple in concept: she wanted to understand how military-grade mana crystals compared to the street-vendor crystals she'd been using for six months. Purity mattered in alchemy. A one-percent difference in mana crystal purity could mean the difference between a healing potion and a poison.
She set up three identical preparations — purified water base, iron beetle carapace powder at five grams each, three drops of her blood. Into each, she dissolved a mana crystal of different purity grade: commercial (80%), military standard (95%), and the highest grade the stockpile had, labeled "research" (99.2%).
[Brew] activated as she worked. The probability trees shifted with each preparation — the commercial-grade batch showed her familiar branches, potions she'd made before. The military-grade showed new branches, unfamiliar compounds, things she'd need days to analyze. The research-grade—
Sera stopped.
The research-grade mana crystal wasn't dissolving correctly.
In her apartment, mana crystals dissolved in water the way sugar dissolved — a gradual process aided by heat and stirring. The 99.2% crystal wasn't dissolving. It was *reacting*. The water around it had begun to glow — not the faint luminescence she was used to, but a sharp, white light that hurt to look at directly.
Her [Brew] sense was going haywire. The probability trees weren't branching — they were *collapsing*, narrowing from thousands of possible outcomes to dozens, to single digits. As if the crystal's purity was forcing the reaction toward something specific.
"That's not right," she murmured. She grabbed safety goggles — she should've been wearing them already — and leaned closer.
The water was boiling. Not from heat — the temperature readout on the embedded sensors showed 22°C, room temperature — but from mana saturation. The liquid was rejecting the crystal. Or the crystal was rejecting the liquid. Or they were both trying to become something else entirely.
From his corner, Min-su took one step forward.
"Stay," Sera said without looking up. "This is fine."
It was not fine. The glow was intensifying, and her [Brew] sense had collapsed to a single probability branch — one she couldn't read, because she'd never seen the potion it was describing.
She made a decision in about two seconds. Grabbed the beaker — the glass one, not the cat — and dumped the entire preparation into the fume hood's containment sink. The glow died. The reaction stopped. The water sat in the drain, looking perfectly normal, as if nothing had happened.
Her hands were shaking.
Not from fear. From excitement.
99.2% purity mana crystals didn't behave like lower grades. They had properties — emergent properties — that nobody had documented because nobody used them for brewing. The military used them for weapons systems and gate stabilization. Hunters used them for skill enhancement. Nobody dissolved them in water with iron beetle powder and blood, because nobody else had [Brew] and nobody else was stupid enough to try.
Something happened at high purity. A threshold. The mana stopped being an ingredient and started being... something else.
She needed to know what.
She pulled out a fresh notebook — her old ones were for apartment-grade alchemy, this was military-grade — and began writing. The pen moved fast enough that her handwriting degraded from "barely legible" to "abstract expressionism."
*99.2% purity: probability collapse. Single branch outcome. Unknown compound. Water-base insufficient — need higher-density solvent? Test with dungeon water (REQUEST AGAIN). Crystal doesn't dissolve — it CONVERTS. Converting what? The water? The other ingredients? Itself?*
*Hypothesis: mana crystal purity above ~97% creates a catalytic threshold where [Brew] outcomes become deterministic instead of probabilistic. Below 97% = many possible potions. Above 97% = one specific potion. What potion? WHY that potion?*
*Need more research-grade crystals. Need to test purity levels between 95% and 99%. Need to find out if anyone else has observed this — check academic databases (IF THEY GIVE ME INTERNET ACCESS, WHICH THEY HAVEN'T).*
She was writing so fast she forgot about Min-su until his shadow fell across the notebook. He'd moved from his corner — silently, which was alarming for a man his size — and was standing two meters behind her, reading over her shoulder.
"Can you read my handwriting?" she asked.
He squinted. "No."
"Good."
She kept writing.
---
At 4 AM, the supply officer called back. Half her requests had been approved. Honey, coffee, slime cores, and cave moss would arrive in the morning. Dungeon water was "under review." Raw gate energy was denied.
"Why denied?"
"Above my clearance, Dr. — Ms. Noh."
"Get me Colonel Hwang."
"The colonel is unavailable until 0800."
"Then give me internet access. I need to check academic databases."
"Internet access for B4 personnel requires a security review. Estimated processing time: two weeks."
Sera stared at the phone. "Two weeks."
"Standard protocol for—"
"I have two years to kill a god, and you need two weeks to let me use Google?"
She hung up. Stood in her lab — her beautiful, perfectly equipped, catastrophically underprepared lab — and pressed her palms flat on the workbench until the urge to throw something passed.
Beaker jumped onto the bench and headbutted her wrist. She scratched behind his ears. "I know," she said. "It's not ideal."
The cat purred. Sera allowed herself thirty seconds of comfort, then pulled her hand away and went back to the notebook.
If she couldn't research, she'd experiment. That had always been her method anyway — PhD-trained intuition filtered through [Brew]'s probability sense and a tolerance for catastrophic failure that would've gotten her fired from any legitimate laboratory.
She pulled every container from the cold storage and arranged them on the workbench in order of [Brew] reactivity — how strongly they pinged her probability sense. Mana crystals on the left (strong ping), processed reagents in the middle (moderate), monster parts on the right (variable, depending on species and freshness).
One container pinged differently.
It was labeled *DUNGEON DROP — ORIGIN: GATE 14-C (CLOSED) — CONTENTS: CRYSTALLIZED AMBIENT MANA — GRADE: UNCLASSIFIED — NOTE: No known applications. Storage for research purposes.*
Crystallized ambient mana. Sera had never worked with it — ambient mana was the background radiation of dungeons, the residual energy that permeated everything inside a gate. Most of it dissipated when the gate closed. Occasionally, in high-density dungeons, it crystallized into small, irregular formations that looked like quartz but weighed almost nothing.
Hunters ignored them. They had no combat applications, no value on the market, no known use in any standard alchemical recipe.
[Brew] didn't ignore them.
When Sera held the container, her probability sense lit up with branches she'd never seen — not the familiar tree-structures of potion possibilities, but something deeper, more fundamental. Like the difference between reading words and understanding the language they were written in.
She opened the container. Inside were six small crystals, each about the size of a thumbnail, milky white with veins of pale blue running through them. She picked one up.
The probability trees exploded.
Not in the overwhelming way the 99.2% mana crystal had caused — that had been a collapse, a narrowing. This was expansion. Every ingredient in the lab suddenly connected to every other ingredient through the ambient mana crystal as a bridge. Combinations she'd never considered, potions she couldn't name, effects she had no framework to understand.
And at the center of it all, one branch brighter than the rest, pulsing like a heartbeat — a recipe that required an ingredient she didn't have.
She focused on the branch, trying to read it the way she read all her [Brew] insights — through intuition and pattern recognition and the gut feeling that six months of mad alchemy had sharpened into something resembling a sixth sense.
The recipe needed ambient mana crystals. It needed high-purity mana crystals. It needed her blood.
And it needed something else. Something that [Brew] showed her as a gap — a blank space in the probability tree where an ingredient should be but wasn't. She'd never encountered a blank before. Every other probability branch showed her the full recipe, even if she didn't have the ingredients on hand.
This one had a hole. A missing piece that [Brew] couldn't identify — or wouldn't.
"What are you?" she whispered to the crystal.
**[SYSTEM NOTIFICATION]**
**[Ability: Brew — Anomalous Activity Detected]**
**[Your ability is accessing probability pathways outside standard parameters. This activity has been logged.]**
**[Reminder: Unauthorized item creation is subject to System oversight. Your cooperation is appreciated.]**
The tone was different. The forty-seven previous warnings had been bureaucratic — form letters from a system that processed millions of notifications daily. This one was specific. *Your ability.* *Anomalous activity.* *Logged.*
The System wasn't sending automated warnings anymore. It was paying attention.
Sera set the ambient mana crystal down carefully. The crystal mattered — more than anything else in this lab. The System was watching her specifically now, which meant she was close to something it didn't want her finding. And the blank in the probability tree — the missing ingredient — was the key. If she could identify what [Brew] couldn't show her, she'd have the foundation for divine-class research.
She picked up the container again and read the label. *Gate 14-C (Closed).* The crystals had come from a specific dungeon — one that had been cleared and closed.
But if Gate 14-C had produced these crystals, other gates might too. Higher-density gates would produce larger, purer formations of crystallized ambient mana. And if she could get her hands on enough of them, she could map the blank in her probability tree by elimination — testing every ingredient she had against the ambient mana until the blank resolved into something identifiable.
She needed to know which dungeons had the highest ambient mana density. She needed dungeon survey data. She needed—
"Min-su."
He materialized beside her. She was going to need to put a bell on him.
"I need information about dungeons. Active gates, mana density measurements, survey data. Can you get that?"
He considered this for approximately four seconds. "Classified."
"Colonel Hwang gave me access to everything."
"Not everything."
Sera narrowed her eyes. "What's restricted?"
"Red-designated gates."
Red-designated. She pulled the term from her memory — she'd heard it once, on a hunter forum she'd lurked on before the Association shut it down. Red-designated gates were dungeons classified as "do not enter." Not because they were too dangerous for current hunters — S-rank teams cleared those regularly. Red-designated meant something else. Something the military didn't explain.
"Gate 14-C," she said. "The one these crystals came from. Was that red-designated?"
Min-su's jaw tightened by about two millimeters. On anyone else, that was nothing. On a man whose face had the expressive range of a concrete wall, it was a scream.
"Before it closed," he said. "Yes."
"Why?"
He didn't answer. Not a refusal — she could tell the difference now, five hours into their acquaintance. He didn't know, or he wasn't allowed to say, and the distinction didn't matter to him.
Sera looked at the crystals in the container. Six thumbnail-sized fragments of crystallized ambient mana from a gate that the military had classified as "do not enter" for reasons nobody would explain. Crystals that made her [Brew] ability do things it had never done before.
She needed more of them. Which meant she needed access to another red-designated gate — one that was still open.
"How many red-designated gates are there currently?" she asked.
"Three."
"Where?"
Min-su looked at her for a long time. His expression didn't change, but something in the quality of his stillness shifted — from passive observation to active assessment.
"You'd die," he said.
"That's not what I asked."
"It's what matters."
Sera put the container of crystals on the workbench and turned to face him fully. She was 163 centimeters tall and weighed fifty-six kilograms. He was nearly a full head taller and probably doubled her weight in muscle alone. She looked up at him the way she looked at unstable compounds — with respect for the danger and absolutely no intention of backing down.
"Sergeant Park. I've been asked to kill a god. The ingredient I need to start — not finish, *start* — that project comes from dungeons your bosses won't let anyone enter. I need to know why they're restricted, and I need to get inside one. You can help me with that, or you can stand in your corner and watch me figure it out on my own. But I will figure it out."
He held her gaze for five seconds. Then he walked back to his corner.
But before he turned away, he said one word — quiet, almost under his breath, as if the walls might be listening.
"Mugyeong."
Sera watched him settle into his standing position, face blank, eyes forward, like the last thirty seconds hadn't happened. She turned back to the workbench and wrote one word in her notebook, pressing hard enough that the pen nearly tore the paper.
*Mugyeong.*
A city in North Gyeongsang Province. Mid-size. Unremarkable. She'd driven through it once on the way to a conference and remembered nothing except a rest stop with decent tteokbokki.
There was a red-designated gate in Mugyeong. A gate the military wouldn't let anyone enter, in a city that nobody paid attention to, producing crystals that made her ability do impossible things.
She needed to find out why.
Beaker jumped onto the notebook, sat on the word *Mugyeong*, and began washing his paws.
"Move," Sera said.
The cat didn't move. Sera worked around him, writing in the margins, her mind already three experiments ahead. The lab hummed around her — ventilation, cold storage, the ambient buzz of military infrastructure designed to contain things that shouldn't exist.
She'd been here less than twelve hours. She'd already found something the military's entire scientific division had missed — ambient mana crystals as a [Brew] catalyst — and she'd already hit a wall that the military itself had built.
Two years to kill a god. And the first ingredient was behind a door marked *do not enter.*
Sera smiled. It was the same smile she'd worn before the third apartment explosion — the one that meant she'd found a problem interesting enough to risk everything for.
The landline rang. She ignored it. It rang fourteen times and stopped.
Outside, somewhere far above the four floors of concrete and steel and classified research, the sun was probably rising. Sera didn't notice. She was bent over her workbench, writing formulas, drawing probability trees, and occasionally talking to a cat who wasn't listening.
She had work to do.
