The blank on the screen was not black.
READ FAILURE appeared over gray stripes. Seorin began imagining an empty corridor, then looked away. Failing to read any image meant the opposite of seeing a room with nobody in it.
On the morning of November 13, a specialist at the designated investigation desk showed intake photographs and opening records for the two sealed items. The first case contained a video storage device. The second held accessory cables and a separate storage medium. They were not handing every object inside to Seorin.
“We attempted preservation copies without writing back to the originals. Readable and unreadable portions are distinguished.”
Seorin had imagined a disk broken in pieces. The permitted exterior photographs showed scratches and a dent. The explanation continued: they could not presently determine when those marks had appeared, or whether either was the direct cause of a reading failure. The case's outer seal had matched its records. That established something about the package, without guaranteeing that every record inside was intact. Seorin's imagined picture of one broken disk had answered far more than the photographs could.
Doun gripped his chair’s arm.
“It was damaged even though inspection was stopped?”
“Ordinary inspection was indeed held. When damage occurred is a separate question. We haven’t established exterior damage as the sole cause.”
Seorin wrote the answers on opposite sides of her notebook. Stopping warehouse inspection had mattered. It could not retrospectively establish an intact earlier condition.
The specialist opened only relevant permitted sections from the copy. Some video survived; not every period on the connecting-section channel shared the same condition. With device-clock calibration unconfirmed, file numbers could not simply enter a standard-time chronology.
Seorin left the playback bar alone. If she needed a particular section, she wrote down her question and passed it to the officer. She did not drag the end of the bar herself to see what might appear next. Being seated in front of the explanation-room screen did not give her permission to handle the investigation's equipment.
A gray threshold appeared in a short clip.
Doun leaned forward. Seorin nearly searched for Haeun’s clothes, then examined the threshold first. Three transverse grooves matched the earlier view of real Room 214. Another provided section showed a black strip and part of a grille.
Different places under the same name.
The change already narrowed through two photographs survived in stored material too. Some intervening sections could not be read. Seorin would not join the ends smoothly and claim to have watched the transition. Device-display times remained separate.
“We can’t see the whole input change here.”
“We’ll examine recovery possibilities further, without promising results. The described gap may change as checking progresses.”
She wrote neither GONE FOREVER nor BACK TOMORROW. The explanation-room door closed with a small sound. On the day she searched for Haeun, someone had stood behind a door. Here she could not even read what had occupied the blank.
At the break Doun stood by a window, opening and closing his hand. Seorin obtained water from a vending machine. A cup already stood inside. Though she had inserted her coin, for a moment she forgot which button she had pressed.
“Even immediate responses confuse me.”
“We keep looking for whoever pressed the button first.”
“We should start with what remains.”
She let the water cool. While they clung to an unreadable original, records surviving elsewhere might disappear. Jeongu’s copy had come through another route. The people who supplied and supported this equipment had records too.
When they resumed, she asked about the external supply and support history already requested. The supplier retained no device recordings, but had replied that it held delivery and remote-support intake records for Eundam. Today she heard which portions the responsible desk had additionally checked and arranged for release. She was asking about an existing request, rather than sending the supplier off to search every unrelated job in its files.
Dates when setting-confirmation files arrived, attachment lists, distribution numbers for work guidance sent to site: none was footage of the person on screen. They offered a way to compare which settings result had traveled with which documents.
“Can that recover the missing video?” Doun asked.
“No. We separate questions outside records can answer from things the video cannot show us.”
The specialist compared supplied management numbers with the equipment. Relevant unit checks matched. Records for a neighboring site were not mixed in merely because the model matched. Unrelated rows remained masked on Seorin’s list.
The first external file concerned delivery, agreeing with the factory-disabled delay already explained. The next followed a site-support request. Its management number and 780 seconds matched entries in Jeongu’s second confirmation. Independent custodians’ receipt records indicated the same file route.
Nobody subtracted the uncalibrated device display, 17:56, from an external receipt timestamp. A server’s receipt was not the input moment. Doun left his calculator closed and wrote UNKNOWN WAIT BEFORE TRANSMISSION between two lines.
While that small blank remained intact, the next list appeared.
CONFIRMATION SCREEN BUNDLE. SITE HANDOVER REFERENCE LIST.
Seorin reread the unfamiliar second filename. It did not mean the supplier had compiled a resident register. Attachments had arrived with a support request; the supplier said it had not inspected the list unrelated to its equipment question. It could provide the retained attachments’ receipt history.
“May we see the contents today?”
Because personal information was involved, permissions were being set separately. Seorin requested first the identifying portion linking her company’s work. Comparing equipment and documents did not require opening every resident’s name.
An outside message arrived. Haeun’s mother wanted to recheck yesterday’s original return and submitted copy. The officer explained that nobody was requesting the original again today. Through the route Haeun permitted, the family received only current intake status. Rumor about an unreadable disk should not become fear that every family paper would vanish.
Seorin sent no direct voice message. The officer responsible joined their actual question to an actual answer. She set aside the assumption that more of her voice must mean greater reassurance.
As their reservation ended, another officer waited outside. She began asking to replay the last video, then noticed the specialist’s schedule. Playing the same file once more would not make the unreadable section restore itself. The specialist's next attempt needed different checking conditions prepared in advance. Her wish for one more look did not remove the next appointment waiting beyond the door.
They received separate lists of what could be viewed today and what awaited replies. Seorin covered the gray bar with her hand and finished comparing the two readable thresholds. A large unknown did not erase features actually seen on either side.
Packing the folding support, Doun noticed an officer’s viewing printout still on it. He separated that from his own notes and returned it.
“I want to take everything that’s left.”
“Let’s first match what we may take.”
Together they read the provided-copy numbers. They emerged into the corridor empty-handed, carrying only the next appointment notice to lunch.
Afterward the supplier’s relevant officer joined by telephone. He did not know why a site custody-and-handover reference list accompanied settings confirmation. His work reply cited only equipment management number and video output route. He had verified neither attached resident material nor actual headcount.
“So the supplier didn’t confirm empty rooms,” Doun said.
“That wasn’t within our technical check.”
Seorin placed the answer beside the technical wording attached to completion. Confirmation that a device worked sat beside confirmation that a site was empty. Who joined them, and why, required another original.
She made a new one-page comparison: readable device material; unreadable material; Jeongu’s retained copy; supplier’s external receipt records. Four routes stood alongside one another, none replacing the others. One small question required four boxes.
Doun looked at the left edge.
“Could my signature have been moved here too?”
“The receipt’s preparation route is being checked separately. This attachment doesn’t establish the same editor.”
He understood. Seorin wished that answer needed less distance. Writing that one person had done everything would shorten the questions. It would shorten the investigator’s day, however, rather than accurately measure anyone’s responsibility.
The original media returned to designated custody that afternoon. Seorin watched the specialist distinguish intake numbers from preservation copies. Her own material comprised permitted summaries and comparison sheets. No data-storage device entered her bag.
Outside, Doun opened the car’s rear door. Yesterday’s empty tea-tin box had tipped over. He picked a scrap of its lid off the floor.
“No original or copy here.”
“You may fold a used box.”
They laughed. On a day when everything seemed to need preservation, something they could fold away made a little room to breathe.
Back at the company, Seorin put the limits first. Some records could not be read; external material had not filled the gaps as invented footage. Independent receipt records did establish the route of a confirmation file with the same management number and settings value. The linked handover reference attachment would be compared after disclosure limits were set.
Doun scheduled his next submission: questions comparing the actual arrangement in which he left the temporary line with the route indicated by stored material. His schedule said neither that damage made work impossible nor that surviving logs solved everything.
Just before leaving, a document from Eungyeong reached the company desk. A proposal to settle related losses quickly and end cooperation. Before studying payment terms, Seorin read the confirmation on the next page.
THE PARTIES CONFIRM THAT DISCREPANCIES IN SITE RECORDS AROSE FROM AN INDIVIDUAL DEVICE ERROR.
Below it lay a line ending further submission of related material. Seorin remembered the section still unread today. Around a blank, people had already written a cause and were waiting for a signature.