Beyond the glass wall, a blue light swept across the back of the man's hand. The light traced the faint outlines of veins and tendons as it climbed up his wrist. The woman seated across from him was the same. The two of them kept their hands motionless, laid side by side on the examination stand. The Quantum DNA Completion Examination. It was the final gate into the institution of marriage.
On the other side of the wall, the examiner, Kim Ji-hyeok, didn't take his eyes off the monitor. The data stream poured down like a waterfall. The two subjects' genomic information was decoded in real time and cross-checked against predictive models. It was a process of hunting, within the faint dissonance produced by three billion base pairs, for future diseases, latent defects, statistical risk. Ji-hyeok's job was to read the results and hand down a final verdict: Complete or Incomplete.
A few minutes of silence passed. The control room held nothing but the low hum of cooling fans. At last the data stream stopped, and a green hologram bloomed at the center of the screen. COMPLETE.
Ji-hyeok pressed the intercom button.
"The examination is complete. Both applicants have received a Complete verdict."
Beyond the glass, the man let out a long breath. The woman lowered her head to look at her own hands. Their expressions were hidden, but Ji-hyeok could sense the faint easing in the line of their shoulders. It was the moment the pressure that had been crushing their future—right up until ten minutes ago—finally lifted.
"Congratulations. Your certificate will be sent to your personal device within five minutes."
The two of them rose and left the examination stand. The door closed, and the lights in the room switched to ultraviolet for sterilization. Ji-hyeok saved the log and checked the next appointment. Three in the afternoon. Two names were listed. One of them caught his eye and wouldn't let go.
Lee Su-min.
The sensation of his heart dropping lasted only an instant. Ji-hyeok deliberately steadied his breathing. She was the person he'd been seeing for three years. The person who was about to become his legal spouse. Today was the day of their examination.
At exactly three o'clock, Su-min stepped into the examination waiting room. Ji-hyeok watched her on the control room monitor. She was dressed as she always was, but something about her was stiff, tense in a way he couldn't quite place. She sat down, set her bag on her lap, and fidgeted with the strap between her fingers. Ji-hyeok stood up and left the control room.
"Did you wait long?"
Su-min, meeting him in the corridor, smiled faintly.
"No, I just got here. I'm nervous."
"It's just a formality."
"Maybe for everyone else. It just feels strange, knowing you're the one who'll be looking through every last bit of my genes."
Ji-hyeok took Su-min's hand. Her fingertips were cold. He could feel her fingers trembling, ever so slightly.
"All I'll be looking at is data. Not you."
"That data is me."
Su-min was right. Twenty years had passed since the examination system was introduced. By now, people identified their genetic information with themselves. A Complete verdict was social status; an Incomplete verdict was a stigma. Marriage, childbirth, entry into certain professions, even which district you were allowed to live in — every stage of life required a certificate of Complete. Incompletes were pushed to the margins of society. They were treated as potential hazards, as subjects to be managed, as imperfect beings. All of it was carried out under the banner of building a perfect, disease-free society.
Ji-hyeok led Su-min into the examination room. They sat together at the examination stand and set their hands upon it. It was a familiar procedure, but the fact that the person across from him was Su-min made every sensation feel strange.
"I'll start."
Ji-hyeok initiated the examination remotely. A blue light swept across the back of Su-min's hand. Then across his own. Their genetic information mingled together, forming a vast river of data that poured into the server. Ji-hyeok returned to the control room and sat down at his station. On the screen, his and Su-min's genome maps lay open side by side.
He checked his own data first. Clean. Every item fell within the green tolerance range. Next came Su-min's data. His finger felt heavier than usual as it scrolled down. Most items were as stable as his own — cardiovascular system, nervous system, metabolic function. All normal. Ji-hyeok wet his dry lips with his tongue. The final chromosomal analysis was loading onto the screen.
And then, it appeared.
A single red dot floating among hundreds of thousands of green indicators. Small enough that it could easily have been overlooked, passed by without a second glance. But Ji-hyeok knew exactly what it was.
`VAR_SOMA_17q21.31_BRCA1_MUT(PROB: 0.91)`
A mutation in the BRCA1 gene. A 91 percent probability of developing breast or ovarian cancer after her forties. The system classified this mutation as a "fatal flaw." The automatic verdict was unambiguous. Incomplete.
The air in the control room suddenly grew heavy. The hum of the cooling fans receded into the distance. Ji-hyeok stared at the red dot on the screen. It was not merely a data point. It was Su-min's future, and it was their future together. This one small dot could shatter everything the two of them had planned.
Once you received an Incomplete verdict, marriage became impossible. Not by law — but socially, impossible all the same. No Complete wanted to marry an Incomplete. A fear ruled the whole of society: that a child born of such a union might inherit the flaw. Incompletes could only be with other Incompletes, or live out their lives alone. They clustered together in certain districts of the city, and their lives remained forever under surveillance and statistics.
Ji-hyeok's hand stopped over the keyboard. Judgment pending. Examiners were allotted one hour for review. He rose from his seat and looked out through the small window in the corner of the control room. Outside, it was raining. Rain slanted in diagonal lines across the gray city. Three years ago, on a rainy street just like this one, he had first met Su-min. In a small bookstore, their hands had brushed as they each reached for the same book — a first meeting so clichéd, looking back, that it could have come from a movie. That cliché had changed the whole course of his life.
Su-min would never dream that such a time bomb existed inside her body. She was healthy, always brimming with energy. He thought of her face lit up with laughter as they picked out bread for tomorrow's breakfast, her voice full of anticipation as she searched for a park to visit that weekend. That all of it — every ordinary moment — could be negated by a single red dot felt unreal.
He returned to his seat and logged into the system's administrator mode. With an examiner's authority, he accessed the raw data. The screen filled with unintelligible code. Ji-hyeok located the exact position in Su-min's genome data where the mutation was recorded. `VAR_SOMA_17q21.31_BRCA1_MUT(PROB: 0.91)`. His fingers trembled. Once, twice. He took a deep breath and set his hands back on the keyboard.
There were two choices. Report the truth, and watch Su-min be branded Incomplete. Or falsify the record. It would mean betraying an examiner's professional ethics, the foundations of the system, the whole social compact. If discovered, his own life would be over too — stripped of his examiner's license at the very least, and prosecuted as a serious criminal.
But on the other side of the scale lay Su-min's life. The unjust burden she would have to carry, the future that would be stolen from her. Should the happiness of the present be sacrificed for a future that hadn't even manifested — that was nothing more than a probability?
Ji-hyeok's fingers began to move. He selected the data line in question. Then he typed in the command — one that would discard the mutation data and replace it with a value within the normal range. So that the system would leave no record, he used his superior authentication key to temporarily disable the log-generation protocol. He entered a few more lines of code, recalculating the checksum that verified data integrity to match the new, falsified values. Everything had to be precise, and it had to leave no trace. He drew on every scrap of knowledge he had gained managing this system for the past five years.
Finally, he pressed Enter. The red dot on the screen blinked, then turned an ordinary green, just like the indicators around it. It was done. He exited administrator mode and returned to the standard examination screen. Two clean genome maps now sat side by side on the display.
The final judgment button blinked. Ji-hyeok moved the mouse and clicked 'Complete.' A green hologram rose up at the center of the screen. 'COMPLETE.'
Ji-hyeok sank deep into the back of his chair. It felt as though all the strength had drained out of his body. With his own hands, he had just buried the truth and stolen the future of the person he loved. Or — should he say, saved it? Even he could not tell which.
That evening, the two of them drank wine in Ji-hyeok's small apartment. Outside the window, the rain was still falling. Su-min looked far more at ease than she had that afternoon.
"I really thought my heart would stop. When that blue light passed over my hand."
Su-min said, swirling her wine glass.
"It's all over now."
Ji-hyeok answered with a faint smile. Just then, the device on Su-min's wrist gave a short chime. She checked the screen. It was a notification that her Completion Examination certificate had arrived. Su-min's face lit up. She rose from her seat, came to Ji-hyeok, and wrapped her arms around his neck.
"Now we can really begin."
Her voice rang softly against his ear. Ji-hyeok held her back. Su-min's warmth, the beat of her heart, came through to him through her shirt. It was a warm, vivid sensation. But to Ji-hyeok's ears, the sound of rain striking the window came through more clearly than her voice. He did not close his eyes. Over Su-min's shoulder, he sat quietly watching the rain streaking chaotically down outside the window. The warmth in his arms was real, but he himself was perfectly isolated within the lie he had made.
"So what should we do first? File the marriage registration? Or should we start looking into housing applications reserved for 'Complete' households?"
Su-min pulled back slightly from his embrace and asked, her eyes shining. In those eyes there was nothing but pure anticipation for the future. Clear eyes, without a speck of doubt. Ji-hyeok found it hard to meet that gaze, and forced a smile as he brushed back her hair.
"Take it slow. There's no rush."
"There is a rush. I want to have a child who looks like you, and soon."
The words struck him like a blade to the heart. A child. Ji-hyeok's breath caught for a moment. The BRCA1 gene mutation carried a 50 percent chance of being passed down to a child. The red mark he had buried was not going to end with Su-min's body — it was a curse that could reach on into their child. He had gone and decided, on his own, not only Su-min's future but the future of a child not yet born. If it were a daughter, that child too would have to live her whole life carrying the fear of cancer.
"Let's talk about a child... later."
Ji-hyeok's voice came out hoarse without his meaning it to. Su-min seemed to catch the faint shadow in his expression, and tilted her head.
"What's wrong? Are you tired from being so nervous today?"
"Yeah, a little. It's just... I want to enjoy this moment a bit longer."
He made the clumsy excuse and pulled her close again. One lie gave birth to another, swallowing him like a bog. Su-min in his arms was warm, but Ji-hyeok felt a loneliness like sinking into deep, cold water. Perhaps he himself was the most fatally flawed 'Incomplete' human of all — the very kind the system was meant to filter out.
The next day, Ji-hyeok went to work earlier than usual. He hadn't managed to sleep properly all night, and the skin beneath his eyes was hollow. The familiar air of the control room felt, for some reason, like it was pressing on his lungs. He switched on his device and accessed the examination log from the night before — his and Su-min's. The falsified data looked flawless. The checksum values matched, and the access records showed no trace of anything abnormal. In theory, it was the perfect crime.
But the anxiety wouldn't go away. The system was more honest than any human. What he'd erased was a single line of data, but he was gripped by the terror that faint inconsistencies might still linger among the thousands, tens of thousands, of other minute data points tied to that line. It was only a matter of time before the system's self-diagnostic protocol found that hairline crack.
"Examiner Kim Ji-hyeok, why the long face? I heard something good happened yesterday."
Team Leader Park from the next seat came over with a cup of coffee and struck up conversation. He was the center's senior-most veteran, a man with an uncanny knack for sniffing out the system's blind spots.
"It's nothing, Team Leader. I just overdid it a bit yesterday."
"What's it like, being examined together with the person you're going to marry? I went through it myself fifteen years ago, so I know the feeling — like laying all your cards on the table. Leaves you plenty uneasy."
Team Leader Park said it like a joke, giving Ji-hyeok's shoulder a light slap. Ji-hyeok managed a dry smile. His heart felt like it was turning to a shard of ice.
All morning he ran examinations for other couples. Even as genetic data streamed down his monitor, his mind was consumed entirely by thoughts of his own crime. Every green "COMPLETE" sign seemed to mock him. Someone among them would, perhaps over some trivial flaw, be declared "Incomplete" and left devastated. And yet he himself had, with his own hands, declared "Complete" a lover carrying a fatal flaw. It was an act that shook the system's credibility — the very foundation of society. He no longer thought himself fit to be an examiner.
It was near the end of lunch hour. The moment Ji-hyeok logged into the system to check his next appointment, a small warning icon began blinking in the upper right corner of the screen. It was a red, administrator-only alert, the kind he never saw under normal circumstances.
'Alert: Anomalous pattern detected during routine data integrity check. Case ID: A7B-4938-C221. Detailed report review required.'
Ji-hyeok's fingers froze over the keyboard. A7B-4938-C221. It was the unique ID assigned yesterday when he and Su-min had undergone the examination together. His heart plunged through the floor. He glanced around in a panic. Fortunately, Team Leader Park and the other colleagues were all absorbed in their own work.
With trembling hands he clicked the alert. A window demanding security authentication popped up. Ji-hyeok scanned his iris and fingerprint. An encrypted report appeared on the screen.
The report was dense with technical jargon and code, but its core point was clear. A statistically significant discrepancy had turned up between the raw genome sequencing data and the final processed database record. In a specific segment of chromosome 17 where the mutation had occurred, the data's entropy value fell outside the normal range. The system had classified this as a possible case of "Data Contamination" caused by an external factor, and was demanding that the examiner responsible for that review submit a re-examination and supporting materials. The deadline was 24 hours.
What had to come had come. He'd thought he'd falsified the data perfectly, but the system hadn't missed the faint speck of dust he'd left behind. It wasn't clear evidence yet. But the seed of suspicion had been planted. Now the system — and perhaps a superior like Team Leader Park — would dig at this tiny speck with relentless persistence. Ji-hyeok sat with the mouse in his coldening hand, staring blankly at the blinking cursor.
Twenty-four hours. The numbers on the digital clock felt like a notice of execution. Ji-hyeok closed the report window. He could neither explain himself nor request a re-review. All he could do was watch as the system took apart his lie, piece by piece, and reassembled the truth. The small speck of Su-min's data that he'd covered up had now become a vast fissure threatening to swallow his entire world.
Just before quitting time, Team Leader Park came over to his desk. Without a word, he patted Ji-hyeok's shoulder a couple of times. There was no reproach in that touch, no sympathy either — only the dry weight of someone carrying out the next procedure as a mere function of the system. And with that, it was over.
On his way home, Ji-hyeok deliberately got off one stop early. The rain had stopped, but the streets were still damp. The city lights smearing across the asphalt looked like a blurred oil painting. Passing the bookstore where he'd first met Su-min three years ago, he paused for a moment. His reflection in the glass looked like a stranger. He had staked everything to protect the person he loved, and only now was he realizing what kind of monster that had made him.
When he stepped inside, the smell of warm food greeted him. Su-min was humming to herself in the kitchen, preparing dinner. On the table lay open brochures for 'Complete-furnished Special Supply Housing.' The moment she saw Ji-hyeok, she broke into a bright smile and ran to hug him.
"You're home? Perfect timing, dinner's just about ready. Should we talk about that model house today? They say the view is amazing."
Su-min's voice was brimming with anticipation for the future. That pure trust cut into Ji-hyeok's heart like a blade. He gently wrapped an arm around her shoulder, guided her into a chair at the table, and sat down across from her.
"Su-min."
His voice sank low, like wet asphalt.
"There's something I need to tell you."
Ji-hyeok told her everything. What had happened in the examination room the day before. The red dot found in her genetic data. How he had erased it. And today, how the system had uncovered that lie. He didn't make excuses. He simply laid out the facts. As he spoke, the smile drained from Su-min's face, her expression hardening into pallor. Her gaze drifted past his face and fixed on a point in empty air. When the last word fell from Ji-hyeok's lips, only a heavy silence remained in the room.
"Cancer... did you say?"
The first thing Su-min uttered was not anger at his betrayal. It was raw, primal fear at the possibility of death lurking inside her own body.
"Not yet. It just means the probability is high."
"So you decided my fate all on your own? Stripping away my right to know, my chance to choose—all of it?"
Her voice trembled, thin and taut. Tears welled up but did not fall. Something deeper than tears was boiling up in her—a sense of betrayal.
"You never loved me. You just needed me as a piece of the perfect future you'd built—like a flawless doll that couldn't bear so much as a speck of dust."
"No, Su-min. I just—"
"Shut up."
At that moment, Su-min's personal terminal, lying on the table, let out a sharp notification chime. Both their eyes snapped toward it at once. On the screen was an official notice from the system.
[This is to notify Lee Su-min that, following reexamination, the result of your Quantum DNA Completion Examination has been amended to "Incomplete." The previously issued certificate is no longer valid.]
The green word COMPLETE had vanished, and in its place sat a stark red brand: INCOMPLETE. In an instant, the housing brochures spread across the table turned into meaningless scrap paper. Every future they had dreamed of shattered before that single word.
Su-min stared at the screen for a long while. Then slowly she lifted her head and looked at Ji-hyeok. There was no longer anger or fear in her eyes. Only a hollow emptiness filled them.
Ji-hyeok could say nothing. All he could do was wait, amid the wreckage his lies had made, for her verdict. Su-min did not rise from her seat. She did not flee, did not scream. She reached her hand slowly across the table, and laid it over the hand of the man whose lies had ruined everything. Her hand was cold, without a trace of warmth. She neither gripped his hand nor pulled away—she simply rested the weight of her own hand upon it. In that faint pressure bearing down on the back of his hand, Ji-hyeok was holding a funeral for everything he had tried to protect. He could neither clasp her hand in return nor draw his own away. He could only look down in silence at the precarious still life made by two incomplete hands, framed by the darkening window beyond.
