The Patient's Name

At 05:25, Mun Rahui did not correct Oh Sejin's words.

If he had corrected the number as he usually did, I would have been less startled. Mun Hajin. The name stayed in the room for a long time. Mun Rahui did not say, "That record belongs to someone else." He did not say, "It could be someone with the same name," either. He rested his hand on the edge of the desk and folded his fingers one by one.

Gang Taejun spoke.

"Do you know a Mun Hajin."

"I know her."

Mun Rahui's answer was short.

"Relation."

"She's my daughter."

Those words demanded emotion. But we did not record emotion first. Gang Taejun wrote on the board, "Mun Hajin / Mun Rahui's daughter / 2019 safety trial record." The name had come down from family to document. It might look cruel, but it was the order we needed today.

Mun Rahui looked at that line for a long time.

"You wrote daughter first, then erased it."

Gang Taejun did not answer. In fact, he had written "daughter" first and attached "Mun Rahui" in front of it. It was a small order. Mun Rahui had seen that small order. Like a man of numbers, he read even the gaps of emotion as sequence.

"The relationship on record and the document's function need to be kept separate."

Gang Taejun said.

"That's correct."

Mun Rahui answered.

It was the first time I learned that the word correct could sound this cold.

Yun Haewon was looking at a copy of her own emergency record.

"Why is that name in my record."

Oh Sejin looked at Mun Rahui before answering. Mun Rahui did not look back. The file had to open whether he allowed it or not.

Go Yura called up the copy's metadata.

"The current archive record is under Deputy Director Yun Haewon's name. But the original template ID still reads MHJ_safety_trial_2019."

"If it's a template, can only the name remain."

Gang Taejun asked.

"It's possible. But using a safety trial template for a drug emergency record is strange. The purposes are different."

Go Yura brought up the opening screens of the two files side by side. On the left, Yun Haewon's emergency record. On the right, Mun Hajin's safety trial record. Neither screen had a photo of a person, nor any phrase meant to evoke family. There were only fields, numbers, and deleted fields.

"I'll start with the shared header."

He said.

Template ID, Generating Device, Auxiliary Account, Field Version.

Four lines matched. But below that, they diverged. Yun Haewon's record had Emergency Response, Cartridge Check, Verifier. Mun Hajin's file had Trial Consent, Response Delay, Shutdown Recommendation, Post Review.

"This isn't just a name left behind."

Go Yura said.

"The structure was left behind."

Structure. The word wasn't dangerous, but it carried enough weight. Without stating the device's underlying principle, it established the fact that the two documents shared the same skeleton.

Mun Rahui cut in for the first time.

"A safety trial isn't a drug record."

"Then what is it."

I asked.

"It's a device response record."

He stopped there. Saying more would lead into the inner workings of SANDGLASS. Now was not the time to open that door. But the name Mun Hajin was already standing in front of it.

Gang Taejun recorded that pause.

"Mun Rahui: Describes the safety trial as a device response record, withholds further explanation of function."

Mun Rahui looked at that sentence and spoke.

"It's not withholding. It's a restriction."

"Who restricts it."

"I do."

"Then we'll record it that way."

Gang Taejun changed the line to "Restricted at Mun Rahui's request," then immediately crossed it out again.

"No. Function undetermined for investigative purposes. That's correct."

Mun Rahui closed his lips for the first time. The phrasing he wanted had not gone through. It was a small crack. But we could not blow up that crack into emotion. What mattered now was only that he had tried to restrict what was said, and that we had not yet determined the function.

At 05:50, Han Dogyeong brought the old trial file from the records archive.

This time he did not ask the reason for access three times. Instead, before bringing the file, he prepared two envelopes. One for Yun Haewon's current emergency record, one for the 2019 Mun Hajin safety trial record. To keep them from mixing.

"They aren't the same file."

He said first.

"Are they linked files."

"The metadata links them. The contents differ."

Before opening the envelopes, Han Dogyeong read the access log. After the accident, the 2019 file had been opened three times. The first for audit preparation. The second for record transfer. The third with no stated reason. The third viewer's field was blank.

"Another blank field."

Go Yura said.

"We record the blank fields too."

Gang Taejun answered.

That sentence had become almost a rule by now. Not erasing blanks. Not dressing up missing data. It was the slowest resistance we could offer.

Yun Haewon's record had many recent accesses. Oh Sejin, the director's office authorization group, the deputy director's position account, and an unnamed temporary emergency access. Mun Hajin's file had stayed closed for a long time before being opened once. That one access was tied to the same auxiliary account as the current record.

"Is the auxiliary account a person."

I asked.

"It's an account a person uses. Not the person itself."

Go Yura answered.

I nodded. This time we couldn't jump too quickly to a person.

Go Yura compared the headers of the two files. Three things were identical. Template ID, generating device, recorder's auxiliary account. What differed was patient name, purpose, access authority. Mun Hajin's file was a safety trial, Yun Haewon's file was an emergency record. Someone had built a bridge between the two.

"Whoever built the bridge."

Gang Taejun asked.

Go Yura shook her head.

"Not visible yet. But there are traces of copying. Not a full copy, just some fields moved over."

He enlarged the comparison table. Three fields were missing, and five remained. On the remaining side were name, verifier, device ID, response time, status value. On the missing side were consent scope, delay warning, shutdown recommendation.

"Did someone remove a safety mechanism."

I asked.

"On paper, a warning field is missing."

Gang Taejun corrected.

"Don't write safety mechanism."

I set down my pen. A single word can decide a function. For now, it's a warning field. Nothing more, not yet.

Mun Rahui spoke quietly.

"Those three lines aren't simple warnings."

Everyone looked at him.

He said nothing more. Those words alone were enough to open the door. But to see past that open door, we needed the next piece of evidence.

Oh Sejin spoke.

"That's why I said it was strange."

Yun Haewon asked right away.

"When did you know."

Oh Sejin delayed his answer.

"When I first saw the current record."

"Why didn't you say so."

"Saying it opens the 2019 file too."

That was self defense again. At the same time, it could be true. We couldn't just pick one or the other.

"If the 2019 file opens, who gets hurt."

Yun Haewon asked.

Oh Sejin tried not to look at Mun Rahui. The act of trying not to look was already the reverse side of looking.

"Several people."

Gang Taejun spoke right away.

"Don't blur out the people."

Oh Sejin drew in a breath.

"Dr. Mun Rahui. Me. The director's office. And the record Mun Hajin left behind."

The last item wasn't a person. But Mun Rahui's hand moved at that moment. He wasn't only trying to protect Mun Hajin as a person. He was trying to protect the record she had left behind too. Or trying to erase it. It still wasn't clear which.

Mun Rahui looked at the file name and spoke.

"Hajin's record isn't evidence in the current case."

"There's a trace of a connection."

Go Yura answered.

"A trace and evidence are different."

"That's why we compare."

Go Yura's voice was small but did not back down. The fact that Mun Rahui was the designer she respected didn't help her in this moment. Respect isn't the authority to close a file.

At 06:25, the first page of Mun Hajin's file opened.

There was no photo. No device meant to stir the bereaved. Trial number, device response time, safety review opinion. Mun Hajin was not a name but an author. That point mattered. Not a dead daughter, but a researcher who had left a record behind. Not someone remembered only the way Mun Rahui wanted.

The first sentence was dry.

"The recovery procedure must not exceed the subject's scope of prior consent."

Mun Rahui's fingers stopped.

Gang Taejun did not read that sentence aloud. Saying it out loud would turn it into an emotional scene. He told Go Yura to keep going with the header comparison only. Go Yura nodded.

"Yun Haewon's current record is only missing the warning fields from this safety trial file."

"Warning fields."

"Consent scope, response delay, emergency shutdown recommendation. Three lines are missing."

Go Yura did not mark the three missing lines in red. Red felt too emotional. She left them as blank gray fields. Only the fact that they were empty was shown.

"The missing fields were covered by Deputy Director Yun's name."

He said.

Yun Haewon did not get angry even after hearing that.

"So my name was used as an eraser."

That sentence was quiet. Quiet enough to stay. A person's name can serve as proof, and it can serve as concealment. This time it was concealment. But who erased it still remained blank.

Mun Rahui said in a low voice.

"Hajin is not an eraser."

"That's not how it was recorded."

Gang Taejun answered.

"Don't let it be read that way."

Mun Rahui's voice wavered slightly. For the first time. He had tried not to turn Mun Hajin into tears, and so had we. But her name was already wavering in the documents.

Yun Haewon asked.

"Are those three lines related to my emergency cartridge."

"For now, it's only related to the template. It shouldn't be treated as related to function."

Go Yura drew the line first. It was the approach we had learned in chapter 24. Record only fields and names before determining function.

Gang Taejun moved that line onto the board.

"Document connection confirmed. Function connection undetermined."

This short sentence was today's defensive line. A document connection being established doesn't immediately explain the method of murder. Mun Hajin's name coming up doesn't immediately settle Mun Rahui's motive either. Not settling what hasn't been settled is slow work. But it has to be slow for this record to survive later.

Mun Rahui placed his hand on the file envelope then.

"This file is slated for disposal."

Gang Taejun asked.

"Who decided that."

"After the 2019 accident, the original safety trial went onto the disposal list."

Han Dogyeong said quietly.

"It's not on that list."

Mun Rahui looked at him. For the first time his gaze wavered. Very slightly. But for Mun Rahui, it was a large crack.

"I remember it."

"The record says otherwise."

Han Dogyeong's words were short. Cruel, in the way a records manager could be.

"Where is the original disposal list."

Gang Taejun asked.

Han Dogyeong held up a second envelope.

"There's a copy here. The original is in the records archive safe."

Mun Rahui said.

"I have access to that safe too."

"That's why we're sealing the copy here, now."

Gang Taejun's answer came fast. Mun Rahui's eyes stopped wavering. The stillness after the wavering was more dangerous. Resolve sometimes follows right after wavering.

At 06:50, we split the files into three envelopes.

First, Yun Haewon's current emergency record. Second, Mun Hajin's 2019 safety trial record. Third, the header comparison table between the two files. Go Yura wrote "connection trace, function undetermined" on the third envelope. That phrase mattered. Just because Mun Hajin's name had come up didn't mean we could immediately open up Mun Rahui's motive or the device's underlying principle.

Yun Haewon looked at the record bearing her own name and spoke.

"Does this mean my emergency record was made from fields cut out of someone else's safety trial."

"For now, that's only a possibility."

Gang Taejun answered.

"A person died from a possibility."

Yun Haewon's words were quiet. She was looking at her own body as a document again. Someone who had been both victim and designer had now become a name overlaid on someone else's record.

Mun Rahui picked up the file envelope.

"Hajin's record can't be left here."

"Put it down."

Gang Taejun's words grew short.

Mun Rahui did not let go. His fingers pressed into the corner of the envelope. It did not tear. Not yet. He wasn't correcting errors or adjusting terminology the way he usually did. He was holding onto only the word disposal.

"Doctor."

Go Yura called out softly.

Mun Rahui did not look at her.

"If you destroy that file, the warning Mun Hajin left behind disappears with it."

At those words, Mun Rahui's fingers stopped. It sounded like an appeal to emotion, but strictly speaking, it was about document function. Warning fields. Consent scope. Shutdown recommendation. Whoever Mun Hajin had been, that file held sentences that must not be erased.

Mun Rahui said, very low.

"She died because of that warning."

No one asked right away. We wanted to ask. Who, how, why. The questions rose up to the throat. But if we asked now, he might tear the envelope. Gang Taejun took only one step forward.

"We'll take that as a separate statement. For now, put the envelope down."

I watched that hand. For the first time, Mun Rahui had reacted to a name before a number. It would be easy to read that reaction as the crack of a villain. The easy path is often wrong. There was only one thing to record now.

"Mun Rahui, attempted disposal of the Mun Hajin file."

Gang Taejun wrote the line, then spoke again.

"Put the envelope down."

Mun Rahui stepped back with the envelope still in hand. The file was still open. The name Mun Hajin had not closed either.

On the side he stepped back toward stood a shredder. A small piece of equipment used in the records archive. No one had paid attention to its location. Mun Rahui had. He already knew the layout of the room.

Before Gang Taejun could move, Han Dogyeong pulled the shredder's plug first. The records manager's hands looked slow, but this time they were fast.

Only then did Mun Rahui look at Han Dogyeong.

"Dogyeong."

"The record says otherwise."

Han Dogyeong repeated the same words. This time they didn't sound as cruel. They were the words that needed saying.

The corner of the envelope crumpled slightly in Mun Rahui's hand. It did not tear. That small difference was what let the whole of that dawn hold together.

The file had not disappeared yet. But the fact that Mun Rahui had tried to destroy it was already on record. The name Mun Hajin had begun as a patient's name, but by the end it had become the name of someone who left a warning behind. And who had cut out that warning, no one had said yet.