1. 编号731的死囚

The first time Han Jisoo saw a man who had been emptied, she thought he was simply asleep.

It was a Tuesday, and the winter rain had turned the prison courtyard into a mirror of asphalt and regret. She stood under the eaves of the administrative wing, clutching a clipboard that bore the forged letterhead of the National Mental Health Council—a credential she had acquired through a former classmate who now worked in parliamentary records. Her official purpose: to conduct an "independent psychosocial audit" of Kukdong Prison's new rehabilitation protocols. Her real purpose: to find out why Kim Junghwan had died with a diamond-shaped scar on his temple and a deleted text message in her phone.

Warden Choi Minchul had accepted her cover story with almost theatrical eagerness. "Another intellectual interested in our work," he had said, ushering her past the guard post with a wave of his manicured hand. "We welcome transparency. Absolute transparency."

That was three hours ago. Now she was standing in the so-called "calibration corridor," a narrow passage lined with one-way glass that overlooked the sensory-regulation lab. Below her, through the tinted panel, she could see six inmates seated in reclining chairs, their heads fitted with electrode bands that pulsed a soft cyan light. Their eyes were open, but they did not blink. Their lips moved in synchrony, whispering something she could not hear through the soundproofing.

She pressed her ear to the glass. Nothing. But she felt it—that low, subsonic thrum she had noticed on her previous visit, vibrating through the floor tiles and up into her molars. It was not a machine. It was something deeper, like the bass note of a church organ played in a catacomb.

Beside her, a young corrections officer named Officer Park—assigned as her "escort" and "liaison"—cleared his throat. "The Warden says you're interested in emotional stability metrics. We have quarterly reports, if you'd like to review them."

Jisoo turned. Park was in his late twenties, with a shaved head and the kind of earnest, hollowed-out face that suggested he had joined the service believing in redemption and had since settled for routine. His uniform was crisp, but his hands were calloused—the hands of someone who had done physical work before wearing a badge.

"I'd prefer to interview a few inmates directly," she said. "Off the record. No cameras, no recorders. Just conversation."

Park's jaw tightened. "That's not standard procedure."

"Neither is a forty-three percent reduction in disciplinary incidents without a single report of adverse side effects." She smiled, letting the challenge sit in the air. "But I'm sure the Warden wouldn't mind a small deviation from standard procedure. After all, he promised transparency."

A long pause. Park glanced at the ceiling camera, then back at her. "There's one inmate who's been asking to speak with an outsider. His name is Lee Changsoo—former transport union organizer, same as Kim Junghwan. He's in the psychiatric wing. But he's… unpredictable."

"Unpredictable how?"

Park lowered his voice. "He says the walls talk. And he keeps drawing the same symbol—a diamond inside a circle. The doctors call it a psychotic episode. But he was fine three months ago. Then he got selected for the advanced neurofeedback program, and after the second session, he started screaming about holes in people's heads."

Jisoo's pulse quickened. "Take me to him."

The psychiatric wing was a different world. The corridors were narrower, the lights harsher, the air laced with antiseptic and something metallic—like old coins. Each cell had a reinforced door with a small viewing slot, and from behind several of them came low mutterings, fragmented poetry, the occasional laugh that didn't quite belong to a human throat.

Lee Changsoo's cell was at the far end, next to a utility closet that had been padlocked with a chain. Officer Park slid the viewing slot open, and Jisoo peered inside.

The man on the cot was thin to the point of translucence, his cheekbones like blades beneath papery skin. He was rocking back and forth, his fingers tracing patterns on the concrete floor—a diamond inside a circle, over and over. His eyes were wide and wet, but they focused on her with startling clarity the moment she spoke.

"Lee Changsoo? My name is Han Jisoo. I'm a journalist. I knew about Kim Junghwan."

He stopped rocking. His hand froze mid-trace. Then he scrambled to the door, pressing his face against the slot so hard that his nose flattened against the metal.

"You saw the scar?" he whispered. His voice was a rasp, as though he had been screaming for days. "You saw the diamond on his neck?"

"Yes. And I saw the same mark on another inmate in the sensory lab."

Lee laughed—a brittle, cracking sound. "They're not marks. They're ports. Access points. They plug into your head and they… they take things out. Memories. Choices. The part of you that says no." He grabbed the slot bars with both hands. "Junghwan was about to talk. He had a meeting scheduled with a lawyer from the Human Rights Commission. The night before, they called him to the medical unit for a 'final checkup.' He came back walking like a puppet. He didn't even say goodbye. Just sat on his cot and stared at the wall until his heart stopped."

Jisoo took a breath. "Who did it? Who performed the procedure?"

"The doctor. A woman. She wears white gloves and never smiles. They call her Dr. Seo—but that's not her real name. She runs the lab in the basement. The basement that doesn't exist on any floor plan." He leaned closer, his breath sour and urgent. "They brought me down there once. They put the headband on me, and I saw—I saw all the others. Row after row of them, sitting in metal chairs, their mouths opening and closing like fish. And in the middle of the room, there was a glass tank. A big one. Filled with something that glowed."

"What glowed?"

Lee's eyes darted to the ceiling camera, then back. "I don't know. But when I looked at it, I forgot my mother's name. For five minutes, I couldn't remember my own mother. That's when I started screaming. They threw me back up here and pumped me full of sedatives." He released the bars and stepped back, his shoulders slumping. "You want to know the truth? The truth is that they're not rehabilitating anyone. They're manufacturing compliance. They're making people into empty vessels so they can fill them with whatever the state needs—laborers, soldiers, voters. And Junghwan? He was going to blow the whistle on the whole thing. So they emptied him and let his heart stop."

A buzzer sounded from the corridor's far end—a sharp, electric note that made Officer Park flinch. He grabbed Jisoo's elbow. "We have to go. The Warden's office is calling."

"Wait—" she started, but Park was already pulling her away from the slot. As she stumbled backward, she caught one last glimpse of Lee Changsoo. He was pressing his palm against the viewing slit, and on his palm, written in what looked like dried blood, was a single word: BASEMENT.

The door to the psychiatric wing slammed shut behind her.

Jisoo spent the next hour going through the motions of an audit: reviewing spreadsheets of "incident rates," nodding at charts that showed upward trends in "prosocial behavior," sipping green tea in Warden Choi's office while he expounded on the virtues of neural plasticity. But her mind was elsewhere—in the basement, in the glass tank, in the moment Lee Changsoo had forgotten his mother.

She excused herself at 5:47 PM, claiming a prior engagement. Choi walked her to the main gate, his hand on her shoulder in that proprietary way she had come to despise. "I hope your audit confirms what we already know," he said, his voice smooth as polished obsidian. "That Kukdong is a model for the future of corrections."

"A model," she repeated. "Yes. I'm sure it is."

She drove away with her hands gripping the steering wheel so hard that her knuckles went white. She did not go home. She drove to the port district, to the warehouse coordinates she had saved from the mysterious text—the one that had promised to show her "the hole."

The warehouse was a rusted skeleton of corrugated iron, its windows boarded, its loading bay choked with weeds. The rain had stopped, but the ground was still slick, reflecting the sodium glare of a distant streetlight. Jisoo parked two blocks away and walked the rest, her flashlight cutting a narrow cone through the darkness.

The door was unlocked. Inside, the air was thick with dust and the sweet, cloying odor of industrial coolant. She swept the beam across the space—empty pallets, a forklift draped in cobwebs, a staircase leading down to a lower level.

She took the stairs.

At the bottom, she found a refrigerated container—the kind used for transporting perishable goods. Its door was ajar, and a thin ribbon of cold vapor curled out. She pulled it open with a creak of unoiled hinges.

Inside, on a stainless-steel gurney, lay a human torso. No head. No arms. Just the chest and abdomen, pale and waxen, with a network of incision lines that traced a precise geometric pattern—diamonds nested within diamonds. And on the right ribcage, a tattoo: a faded dragon, its tail curling around what had once been a throat.

Jisoo staggered backward, her flashlight clattering to the floor. She knew that tattoo. She had seen it in the photo—the one sent by the anonymous source. This was Kim Junghwan. Or what remained of him.

She forced herself to look again. The incisions were too clean, too deliberate—not the work of a coroner, but of a surgeon. And beneath the skin, she could see glints of metallic wire, thin as hair, threading through the muscle tissue. They led to a small port embedded in the sternum—a diamond-shaped socket, exactly like the scar she had seen on the living inmate.

A sound behind her. Footsteps. Slow, deliberate, echoing off the concrete walls.

She spun around, her heart hammering. A figure stood at the bottom of the staircase—tall, slender, wearing white gloves and a surgical mask that covered everything but a pair of cold, unblinking eyes.

"You're early," the figure said. The voice was female, flat, with a faint accent she couldn't place. "I was told you'd come at midnight."

Jisoo reached for her phone—but her pocket was empty. She had left it in the car. The figure took a step forward, and the flashlight beam, still on the floor, caught the edge of a nametag pinned to the white coat.

Dr. Yuna Seo.

"You don't need to run," Dr. Seo said, pulling off her mask. Her face was beautiful in the way of a porcelain doll—symmetrical, unlined, utterly devoid of warmth. "I've been waiting for someone with your particular… curiosity. The Warden wants you neutralized. But I think you're more useful alive. At least for now."

Jisoo backed against the refrigerated container, her hand brushing against the cold metal of the gurney. "You killed him. You harvested him."

"I completed him." Dr. Seo smiled—a thin, surgical slit. "Junghwan was a failure. His neural architecture was too resistant. He fought the encoding until the very end. But we learned from him. The next subjects will be more… receptive." She tilted her head, studying Jisoo as one might study a lab specimen. "You have a strong mind yourself. I can see it in your eyes. That's rare. That's valuable."

"You're insane."

"Perhaps. But I'm also the only one who can answer the question you haven't dared to ask." Dr. Seo reached into her coat pocket and produced a small device—a headband, identical to the ones in the sensory lab. She held it up like an offering. "Why do you think the government granted us this contract? Because they want obedient prisoners? No. They want a template. A universal emotional baseline that can be applied to anyone—protester, whistleblower, inconvenient journalist. You're not investigating a crime, Miss Han. You're investigating the blueprint for a new kind of society."

Jisoo's mind raced. The exits. The stairs. The gurney. The headband. She had no weapon, no backup, no way to call for help. But she had one thing—a fragment of Lee Changsoo's warning: the glass tank. If she could stall, if she could learn more—

A loud bang from above. The warehouse door slamming open. Male voices, shouting, boots on concrete.

Dr. Seo's smile vanished. She turned and disappeared through a side door that Jisoo hadn't noticed—camouflaged against the corrugated wall. The headband clattered to the floor, left behind in her haste.

Seconds later, three men in black tactical gear descended the stairs. They were not police. Their vests bore no insignia. One of them grabbed Jisoo by the arm and pulled her away from the container.

"Miss Han," he said, his voice clipped and professional. "You're coming with us. The Agency has questions about your unauthorized investigation."

She opened her mouth to argue, but the man pressed a cloth to her face. The world dissolved into a swirl of chemical sweetness and distant, thrumming bass—the same subsonic note from the calibration corridor.

The last thing she saw, as consciousness faded, was the refrigerated container's door swinging shut, hiding Kim Junghwan's hollowed torso from her sight. And behind the door, etched into the metal in fresh scratch marks, a message: THEY'RE WATCHING THROUGH YOUR OWN EYES.

She tried to scream, but the sound never came.