Gray Thread Never Went Quiet

Even after the original of the recovery log was preserved, Gray Thread did not go quiet. Minwoo insisted they had to seize the external service's admin account together with the logistics company's legal account, and Yeoreum pushed back that the original data, which had protected parties' information mixed in, had to be separated first. Between the two of them, Seojin still hadn't disclosed the record of her own ability use.

Minwoo closed the meeting room door and said,

"Seojin, was there a word you heard in the raw audio?"

Seojin didn't answer right away. Chapter 22's "empty house" had already pushed up a first hypothesis before being discarded. She hadn't hidden that fact, but she'd submitted the record of her ability use only to the outside reviewers and to Yeoreum first. Minwoo took that delay as a monopoly on information.

"There was."

"Why didn't you say so from the start?"

"The ability's output isn't evidence, and before the original statement was reviewed, the scope of disclosure had to be decided too."

"Our team suspected Song Juhyeok without knowing what you'd heard."

"That's why I put the whole process into the correction notice."

Minwoo tapped the papers on the desk. "The correction notice comes later. Out in the field, people already moved."

Yeoreum stopped him. "If you want to use an analyst's ability output as grounds for an investigative judgment, you have to separate the usage record, the cost, and whether it's been independently verified, first."

"And while we did that, the external service tried to pull the data back."

"That's why we filed the preservation request first, and the original stayed with us."

The argument wasn't over the timeline of the case but over the order of authority. Minwoo wanted a fast seizure, Yeoreum wanted a limited submission, Seojin wanted independent verification. All three were trying to protect the evidence, but each thought the others' methods were dangerous.

Song Juhyeok heard the exchange from outside the door and didn't come in. After he finished a call with the protection agency, he passed the conditions for accessing his account to Yeoreum alone, again. Seojin found out about it later. It wasn't that Song Juhyeok didn't trust her. He simply didn't treat an analyst's access and an investigator's access as the same thing.

That afternoon, the outside reviewers confirmed the record of the ability's use. The output was "empty house," no subject, no tense, no truth value, one ordinary word lost after use, recovery time logged. The record was complete, but that completeness was itself the problem. The ability wasn't a convenient clue. It was an act that charged a cost against Seojin's own language and judgment.

Yeoreum suggested that Seojin temporarily suspend her analytical authority over her ability. Until the outside raw audio was sorted out, Seojin would remain an observer rather than an interpreter of the original statement, and another analyst would take the first review.

Hearing that, Seojin's face hardened. If her analytical authority was taken away, she felt like she was being pushed out of the case. She wanted to confirm the 17 seconds from Yun Junho's case as quickly as possible, and she thought she was also the one who could tell whether this external service belonged to the same family of tools.

"If I step back, the interpretation slows down."

"That's right. But if you keep interpreting, the risk grows that the team starts treating your sense as if it were independent data."

Seojin couldn't refute what Yeoreum said. She'd thought she wasn't using her ability as evidence, but it had already influenced the order of the team's questions and the list of suspects. The single word "empty house" pulling Song Juhyeok's name up onto the board was proof of that.

Minwoo opposed suspending her authority. "If there's a problem, just make the record stricter. Pulling a person out is a loss for the team."

Seojin looked at him. "At first, you thought things went faster when you listened to me too."

Minwoo didn't answer. He thought of the report where he'd bolded Song Juhyeok's name and then deleted it, and the correction he'd published publicly under his own name.

Yeoreum laid out the conditions for the suspension. Seojin could state her first impression of the raw audio, but she couldn't put the word on the evidence board. The original interpretation would go first to the outside reviewers and another analyst, and Seojin would compare their results with her own sense afterward. If there was a discrepancy, the discrepancy itself would be logged in the correction record.

Seojin read the conditions and signed. Rather than keep unlimited access, she chose to suspend her own analytical authority so the team could regain its independence. She felt the decision lowered her standing, but she judged it was better than hiding a misjudgment just to protect that standing.

Song Juhyeok walked into the meeting room right then. He saw the paper Seojin had signed and said,

"I'll refuse one piece of data too."

Minwoo reacted. "Now, in this situation?"

"I won't open the company account's raw text that I have. Instead, I'll hand the vehicle's original log and the refrigerated storage unit's power log to the outside reviewers."

"Why refuse now, of all times?"

"If I open the raw text at the exact moment the analyst's authority is limited, my data could end up controlling the direction of the investigation again."

Seojin heard that and looked at Song Juhyeok. He was using his right of refusal for his own purposes, but at the same time he was offering more physical records. He could have exploited the investigation team's divided authority, but he was trying not to hand any one person new power.

Yeoreum approved Song Juhyeok's refusal and noted the preservation time of the substitute data. Minwoo swallowed his complaint. For the first time that day, the team treated someone's refusal not as an obstacle but as input into the process.

At five in the afternoon, another analyst reviewed the external service's footage without raw audio and its token logs. He didn't get the word "empty house." Instead, he confirmed a 45 second gap between the photo's creation and the token's reissue. Seojin laid her own ability output side by side with that result and admitted that different data produced different questions.

"The word I heard didn't point to a person," Seojin said. "But the team attached that word to a person. That process is my responsibility."

Minwoo suggested adding his own name to her correction notice too. Seojin asked him to instead record the fact that he hadn't treated the word as evidence from the start. If they mixed the facts together in the name of sharing responsibility, it would blur who had made which judgment.

That night, a message arrived for Song Juhyeok from the external service, offering a deal. "Hand over Adil's location, and we'll clean up the records connected to your company account." Song Juhyeok read the message but didn't send it straight to Gray Thread. He filed a preservation request with the protection agency first, reviewed the terms of the deal, and only then told Seojin.

Minwoo made an issue of the delay. "There's a chance the real culprit reached out to you. Why didn't you say so immediately?"

"If I'd sent a reply, the other side could have closed the account."

"That's not a judgment call that belongs to you."

"That's why I preserved it first and told you after."

Yeoreum recorded what both of them said. Song Juhyeok had tried to use the deal to get more information, and in the process he'd decided on his own when to share that information with the investigation team. His actions might have helped the investigation, but they were also a dangerous choice that had slipped outside the team's control.

Seojin added the deal message's preservation procedure to her own document on suspending her analytical authority. She put the misreading of the ability and the supporting character's independent action on the same risk list, without mixing their separate responsibilities.

That night, Gray Thread redistributed three kinds of authority. Seojin's analytical authority: suspended, with double review. Song Juhyeok's right of refusal: reason, scope, and expiration time all logged. Minwoo's field authority: scope of seizure and confirmation by outside reviewers. Yeoreum's role no longer ended at deciding the scope of disclosure. It became making sure that none of these authorities could monopolize anyone else's data.

Seojin wrote down the seal number of the deal message. The real culprit had reached through the gap between the divided team, and Song Juhyeok had held that message alone. The fair procedure had slowed things down, but it was also now on record that not everyone held the same information at the same time. The next day, Song Juhyeok said that the account that had sent the deal message matched the admin account of the external cleanup service. He had the raw text that could confirm the account, but he didn't disclose the raw text itself. Instead, he passed the message's send time, the type of authority the account held, and the time the preservation request had been filed, to the outside reviewers.

Minwoo asked. "Then can we find this person?"

"Decide the scope you can search within."

"That's not a decision that's yours to make."

"It contains data connected to the person I'm protecting. That's exactly why it is mine to decide."

Seojin transcribed both their words into the meeting log exactly as spoken. Song Juhyeok's words sounded like control, but there was real information in that control that needed protecting. At the same time, reviewing the deal message alone had gone beyond the bounds of investigative authority. Both facts had to be recorded.

Yeoreum asked Song Juhyeok whether the message's raw text could be entrusted to the outside reviewers alone. Song Juhyeok agreed, but attached a condition: if a reviewer inferred Adil's identity, access had to be halted immediately. Yeoreum accepted the condition and granted the protection agency the same right to halt access to the raw text.

While her analytical authority was suspended, Seojin didn't read the deal message's raw text herself. Another analyst extracted only the sending account's time and authority type, and Seojin checked the results afterward. She had the urge to get the answer quickly, but right now her responsibility was to stop her own sense from getting ahead of the team's direction again.

Minwoo didn't apologize to Song Juhyeok that afternoon. Instead, he narrowed the scope of the seizure list and added time windows the outside reviewers could confirm independently. Looking at the list, Song Juhyeok said, "This time, what I'm refusing is clear."

Minwoo answered curtly. "I couldn't make it so there was nothing to refuse."

"Still, I can see what I'm refusing."

The team still didn't fully trust each other, but they'd become able to predict each other's authority. That predictability was the minimum trust needed for the next stage.

At eleven that night, the outside reviewers confirmed that the deal message wasn't a simple threat. It had demanded, as its price, the authority to clean up Song Juhyeok's company account. The sender hadn't produced any evidence of knowing Adil's location, and had only quoted a fragment of the account data. So it still couldn't be determined whether the sender was the real culprit or someone impersonating them using internal company information.

Seojin left that limitation in the report. "The deal message demanding Adil's location" was a confirmed fact. "The real culprit's approach" was a hypothesis. "Prior possession of the company account data" was an item still requiring further verification.