The hwando does not go away when the light does.
That's the first thing I test, on the first morning, in the six square meters of floor between my bed and the door. I half expected it to be a room thing — that I'd wake up in my own apartment and find nothing but the memory of a grip.
It's leaning against the wall where I left it. Plain wooden scabbard, no markings, the whole thing so unremarkable that when my mother comes in with laundry she looks directly at it and asks whether I've started doing kumdo again.
"Something like that."
"Good. You were always calmer when you were doing something with your hands." She sets the laundry down. "Your uncle still has his from university, you know. He'd give it to you."
I don't say anything, because there's no version of *this one cost six hundred and twenty points and I earned them by being in the room when people died* that fits at a breakfast table.
* * *
The second morning I take it to the roof of my building and find out what it actually does.
The first attempt is nothing. I hold the blade and reach for the light the way I do with my hands, and it gathers in my palms and stops at the grip like there's a wall there.
The fourth attempt, I stop trying to push it into the sword and just let it go where it wants.
It runs the length of the blade in about a quarter of a second, and the steel doesn't glow so much as it stops being entirely there — the edge goes indistinct, the way a struck bell looks when it's still moving, and the air along it makes a sound I've never heard.
I put it through a discarded air-conditioning unit somebody left on the roof six years ago.
The unit comes apart in three pieces and the concrete underneath has a groove in it as long as my forearm.
DAMAGE: 2,360
The bracelet can measure damage here. The light is no longer the weak spark I made after the first stage, either. The weapon and everything channelled through it crossed the boundary with me.
Five eighty-eight, on an appliance, standing still, with nobody in danger and nothing on the line.
My best in the field with my hands was four seventeen.
I sit down on the roof next to a wrecked air conditioner and think about a man in a Lotte World polo who followed us down a ladder because he wanted to see what he'd helped do, and about how many points of what I just did came from him.
* * *
On the second afternoon, most of us end up in the same barbecue place in Sinchon, because Chris announced a time and a location in the group chat and then simply went there and waited, on the theory that people show up for meat.
He was right. Seven of us show up for meat.
"This is a bad idea," Jung-su says, sitting down. "We shouldn't be in one place."
"We're in one place every three days anyway, hyung," Su-min says. "At least this time there's pork."
Vincent arrives eleven minutes late with a folder.
An actual folder. Paper.
"Aiyaaa, don't start," Ha-eun says.
"I have not started."
"You brought a folder."
"I brought *findings*." He sits, opens it, and lays out three sheets covered in his own handwriting, which is somehow both immaculate and unhinged. "I have been reconstructing the Stage Eight ranking from observable inputs. Damage dealt. Positions cleared. Civilians moved. Time-to-objective."
"Vincent."
"Under every weighting I can construct, I place first or second." He taps the page. "Under two of them, Hyunmin places fourth."
"So your conclusion," Areum says, "after three days, is that the System is wrong and you're right."
"My conclusion is that the methodology is *unpublished*, which is unscientific and frankly rude."
Chris reaches over and takes a sheet, holds it upside down, studies it with enormous seriousness.
"Yeah," he says. "Yeah, that's real convincing. What's this one say?"
"That is upside down."
"Is it?"
"You know it is la."
"Well, hell, professor, I ain't got the education." Chris hands it back. "What's my ranking come out as, in your findings?"
There is a short pause.
"The model does not account for your contribution," Vincent says stiffly.
"'Cause it can't measure it?"
"Because you did not *do* anything measurable. You stood in front of things. That is not an input."
"Huh." Chris turns a piece of pork over on the grill, entirely unbothered. "Reckon that's the job, though."
Vincent opens his mouth. Then he actually stops, which is rare enough that Su-min notices and looks up from his phone.
"That is—" Vincent frowns at his own sheet. "That is an unmeasured variable, not an absent one. Those are different."
"If you say so."
"I do say so. It's my folder." He shuts it, irritated, and I watch him not throw it away.
Ha-eun taps the table twice in front of Su-min without looking up. "Hand."
"It's fine."
"Hand, Su-min-ah."
He gives her the hand. It is not fine. She has it splinted inside four minutes, while he complains steadily and does not once pull away.
* * *
Areum calls on the second night.
"You've been quiet."
"I've been on a roof."
"That's not less concerning." Traffic behind her, a bus door, somewhere in Seoul. "Vincent's been texting the group at three in the morning about ranking methodology. Su-min says his hand is fine, which means it isn't. Ha-eun has gone completely silent, which with her is normal but I check anyway."
"And you?"
A pause long enough that I hear her decide to answer honestly.
"I keep counting the crowd," she says. "At Lotte World. There were maybe a hundred and forty thousand people in that park and forty-four of us and we still cleared it, and I keep running it again in my head and getting a different answer about whether that was skill or luck."
"Vincent would say there's a methodology."
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"Vincent would be wrong." Bus noise. "That's the part I don't like. It worked because forty-four strangers believed you inside two hours. That's not a plan, Hyunmin. That's a coin landing right."
She isn't wrong, and I don't have an argument, so I don't make one.
"Go and see Mrs. Bae," she says, before she hangs up. "She's been asking about you and she won't say so."
* * *
She lives in a third-floor walk-up in Junggye-dong with a persimmon tree in a pot on the landing and thirty years of other people's children in photographs on the wall.
I bring fruit because that's what you bring. She takes it, tells me off for spending money, puts it in the kitchen, and comes back with more food than two people could eat.
"Sit. Eat. You've lost weight."
"I haven't."
"You have. I look at nine people every three days and I know exactly what all of them weigh." She sets down banchan I didn't ask for. "Eat."
I eat.
The photographs are the thing I can't stop looking at. Class photos, mostly — rows of kids in identical uniforms, twenty-five years of them, all with the same small woman standing at the end of the row.
"Elementary," she says, catching me looking. "Thirty-one years. Same school for the last nineteen."
"You never said you were a teacher."
"You never asked." She says it without any edge at all, which somehow makes it worse. "Nobody asks. Everybody looks at an ajumma with a bag of rice cakes and decides they already know the whole story."
She sits down across from me with her own bowl she isn't going to eat from.
"I was the one they sent the difficult ones to," she says. "The ones who bit. The ones who didn't talk. Every school has one teacher they send those children to, and for nineteen years at that school it was me." A small shrug. "So. Now you know why I stand where I stand."
Something goes cold and quiet in me.
"Imo—"
"Don't." She points a chopstick at me. "I know what that face is. You're about to say something about how I should stay back, or stay behind you, or stay near an exit. Yohan tried it. Jung-su tried it once and had the sense not to try again."
"Someone has to say it."
"Someone has said it. Four times." She picks up her bowl, finally. "Hyunmin-ah. I'm sixty-two years old and I have spent my entire life standing between children and whatever was coming at them. That was true before your room and it will be true after it. You did not give me that job and you cannot take it away."
"I know what you're doing, by the way," she says, quieter. "With that face. You've been doing it since Namsan."
"Doing what."
"Deciding which of us you're going to lose." She says it plainly, the way she says everything. "You look at each of us and you put us in an order. You think nobody sees it. I taught eleven-year-olds for three decades, Hyunmin-ah. I can see a child sorting the room in about four seconds."
I put my chopsticks down.
"I don't do it on purpose."
"I know you don't. That's why I'm not angry." She reaches over and refills a bowl I haven't emptied. "But I want you to hear something and I want you to actually hear it, not nod at it. Are you listening?"
"I'm listening."
"Whatever order you've put me in," she says, "it isn't your decision. It never was. You are twenty-four years old and you have decided you are personally responsible for the survival of everyone who stands near you, and that is a very heavy thing to carry, and it is also not true."
"People die when I make the wrong call."
"People die when anyone makes any call. That's what the room is." She taps the table once. "You want to know what I actually think? I think you are very good at this and it is costing you something I don't think you can afford, and I think there is no version of the next year where you put that cost down." A pause. "So eat, while somebody is still making you food."
I don't have anything.
"Now eat," she says. "There's more in the freezer. I made too much again."
* * *
She sends me home with three containers. I find out later, standing in my own kitchen at eleven at night, that one of them is doenjang jjigae and one is galbi-jjim and one is a plastic tub of soup labelled, in careful marker, with my mother's name — because I mentioned once, four stages ago, that my mother had been sleeping badly.
I don't remember telling her that. I must have. She kept it.
I stand in my kitchen holding a tub of soup for somebody else's mother and finally admit what I have been doing for two days: sorting the people around me into those I expect to survive the coming year and those I don't. I have no right to do it. I do it before every stage anyway.
Mrs. Bae is on the wrong list. She has been for a while.
I put the soup in the fridge and I don't finish the thought.
* * *
The light takes me at four in the morning on the third night. Early again. Hurried again.
I have the hwando in my hand when it comes, because I've slept next to it both nights, and I arrive somewhere loud.
That's the first wrong thing. Every stage until now has started in a silence — an empty platform, a dead mall, a hospital corridor with nobody in it. This one starts in **noise**, and it takes me a full three seconds to understand that the noise is people.
I'm standing on grass. There are picnic mats under my feet in every direction and a wall of bodies pressed up the slope behind me and the smell of fried chicken and beer and river water, and the sky over the Han is full of light.
Banpo. The fireworks festival.
There are people from the water's edge to the top of the embankment and back along the road behind it, families sitting on flattened cardboard, couples on folding chairs, children on shoulders, a solid field of human beings in every direction I look. Then the fireworks flare white, and thousands of identical dull bracelets reflect the light. The Room has transported the audience again. This time it has taken almost an entire festival.
A shell bursts overhead and a hundred thousand phones go up at once to film it.
"Oh," Vincent says, somewhere to my left, very quietly, in the voice of a man doing arithmetic he wants to be wrong about. "Oh, no."
I find them one at a time in the crush. Jung-su, six meters off, already turning in a slow circle with his jaw set. Chris, a head above everyone. Su-min swearing steadily. Areum. Ha-eun. Yuna, white-faced. Mrs. Bae, of course, already looking not at the sky but at the nearest children.
Nine of us.
"How many people are at this thing?" Su-min asks. "Normally. How many people come to this?"
"A million," Jung-su says. "Give or take."
"A million."
"On the good years, more."
The strangeness takes a few seconds to resolve. The same red shell bursts twice in the same corner of the sky. Nobody's phone has a signal. Across the river, traffic moves without ever reaching the next bridge. The disguise is simply larger and better than anything the System has built before.
That's the horror of it and I don't have the words for it yet — there's no wrongness to find. The floor isn't warm. The ceiling isn't swallowing light, because there's no ceiling, just an actual sky over an actual river with actual fireworks in it. Nothing here is wearing a disguise.
"It's not pretending," I say.
"What?" Su-min, close.
"Every other stage wore a building," I say. "Hongik Station. The mall. The hospital." I watch the same red firework bloom for the third time. "This one copied a whole section of Seoul. The festival and the people are real. Banpo isn't."
Jung-su has gone very still.
"Then it built a Room large enough to hold a million people," he says. "That may be worse."
Then the bracelets go, all nine at once. Gold answers throughout the crowd — dozens of active contestants, then hundreds, scattered among a million dormant black bands. For one second I can see everyone who will receive the rules and everyone who has been brought here without them.
STAGE 9 — THE TIDE
CLEAR CONDITION: FIND AND TERMINATE THE TIDE.
EXECUTION RULE: A CHAIN THAT ENTERS THE RIVER TAKES EVERY PERSON IN IT. FAILURE CONDITION: 100 CHAINS REACH THE WATER.
STAGE 9 — TIER A.
Nobody says anything.
We've seen E. We've seen D. We've seen C twice, and both times it nearly killed us, and Chris made a joke about the tier lying because the tier always lies, low numbers hiding the real danger, that's the rule, that's been the rule since Namsan.
There is no B on this readout. It skipped it.
"That's not a real letter," Su-min says. "That's not — we don't get letters like that. We get D. We get E. We got E for the building that ate Min-seo."
"It's real la." Vincent's voice has gone completely flat. Tier one. The register he only uses when he's actually working, and it's worse than the shouting. "It has never lied upward before. It has only ever lied down. If it's telling us A, it's because it does not need to hide anything from us anymore."
Down at the water's edge, forty meters away, a woman stands up from her picnic mat.
She doesn't push. She doesn't hurry. She steps over her own shoes, walks past the family beside her, and continues down the concrete slope into the Han River without breaking stride, up to her knees, her waist, her shoulders.
The man she was sitting with grabs her hand.
He goes in after her, and he isn't walking calmly at all — he's fighting it, digging his heels, screaming — and it doesn't matter even slightly. He goes in the same way she did.
The teenage girl holding his other arm goes third.
And I watch, from forty meters up a grass slope in a crowd of a million people, as it keeps going down the line.
Eleven people. I count them, because counting is the only thing my body will let me do for the first two seconds — eleven human beings walking into the Han in a line, linked hand to arm to sleeve, and only the first one is doing it willingly.
The twelfth is a boy of about nine, and he is holding his father's belt.
Chris is already moving. He doesn't ask, doesn't check, just goes down the grass slope through a picnic crowd at a speed that knocks two men flat, and he reaches the twelfth person about a meter from the waterline.
He doesn't pull the boy. He can't — I understand that later, watching it again in my head; pulling the boy means pulling the whole chain, and the whole chain outweighs him.
He breaks the grip instead. Gets both hands on the kid's fist where it's locked into a leather belt and forces the fingers open one at a time, and the father goes into the water and the boy does not.
The chain enters the river. Eleven people. Not twelve.
CHAIN CLAIMED: 1/100. LIVES CLAIMED: 11.
Nothing enters my chest. Forty meters and a wall of bodies put the eleven deaths beyond the Anomaly's reach; no memories arrive and no numbers rise. The boy starts screaming at Chris and hitting him — small fists into a chest that doesn't move — and Chris lets him do it, kneeling on wet concrete at the edge of the copied Han with a child beating on him for saving his life.
"That's the rule," Vincent says. He hasn't moved. He's watching the water where eleven people used to be, and his voice has gone somewhere I've never heard it go. "That's the whole rule. It doesn't take people. It takes *contact*."
"Say it plainly," Jung-su says.
"Anyone touching anyone it has taken, goes." He turns and looks up the slope, at the crowd, at a million people packed shoulder to shoulder on a riverbank on a warm night, families holding hands, couples arm in arm, parents with children on their shoulders, every single one of them physically connected to at least two other human beings.
Nobody says anything at all.
"How many chains can nine people break," Areum says. It isn't a question.
Down at the water, forty meters to our left, someone else stands up.
And then — further along the bank, near the bridge — two more.