She woke at three in the morning.

This was not unusual — she had woken at three in the morning for ten years, the body's internal clock maintaining the schedule that the dreams had established long ago. What was unusual was that she woke and her first fully formed thought was not about the dream or the instability reading or the day's mana-map. It was: *he's not in his room.*

Not alarm — she had learned to distinguish between the alarm-quality of waking and the information-quality of waking, and this was information. Her spatial awareness of the building was good enough, after three days, to tell her the difference between a room that was occupied and a room that was not, and the room that had been assigned to Shin-woo had the particular acoustic signature of empty space.

She located him in forty seconds.

North corridor, second floor, near the window that faced the street. She had mapped this position before — he had been in or near this position both previous nights, though she had not followed him before. She lay still for a moment and considered following.

The consideration did not last long.

She found him standing at the corridor window with his back to the wall and his arms at his sides, not in combat readiness but in the particular configuration she had come to associate with the type of wakefulness that was not insomnia but something more intentional — the wakefulness of someone who has decided not to sleep rather than failing to achieve it.

Instability reading: sixty-eight. Stable. Not elevated. The reading of someone at rest, except that he was not at rest.

He registered her approach — she had not tried to be quiet, she had learned early that trying to be quiet around him was both unnecessary and slightly patronizing — and said nothing. She came to stand beside him at the window and looked out through the layer of partial sight and mana-overlay at the post-Unreal Hanseo street below.

The street was quiet. Quieter than it had been before the event — the absence of traffic, of human occupation, of the small sounds that a city produced when it was full of people going about their lives. The altered quiet of a place that still existed but had lost most of its inhabitants to evacuation or shelter or simple disappearance.

She had never thought much about the sounds of Hanseo before the event. She thought about them now.

"You knew I was awake," he said.

"I knew your room was empty," she said. "I found you by the process of elimination."

A pause. "You have the building mapped."

"Twelve days," she said. "Yes."

"Including my room."

"Including all the rooms. I don't apply selective attention to some rooms and not others — the mapping is comprehensive."

He made no comment on this. She had learned that when he did not comment on something, it was usually because he was filing it rather than dismissing it — building it into his model of her rather than discarding it as irrelevant.

The corridor was dim — the building's electricity had been allocated primarily to the communal floors, and the residential corridor ran on reduced light at night. Her mana-sight supplemented what her partial vision could manage. She could see his profile against the window: the shape of him, the particular quality of stillness that was his nighttime stillness, which she had studied in the context of the dark office building and the underground market and the open shelter and now here.

"You don't sleep in exposed positions," she said.

"No."

"The building is as secure as anything we've been in."

"I know that."

"Then the not-sleeping isn't about security."

He was quiet for a moment.

"The body has habits," he said. "They don't change because the conditions change. They change when they're ready to change."

"How long has it been," she said. "The not-sleeping at three in the morning."

"Since the garrison years." A pause. "Before, I slept badly but I slept. After the first campaign season, three in the morning became the boundary between the first and second phases of the night. The first phase I slept. The second phase I didn't."

She thought about what she knew about the first campaign season. She had watched it. She had watched the particular configuration of events in the second month that had produced the shift — the night at the Eren outpost, the event she had never fully described in her files because the flat descriptive language she used for difficult things had felt inadequate.

"The Eren outpost," she said.

He looked at her — the shift in orientation, the particular quality of being attended to.

"Yes," he said.

"I watched the night of it from the outside," she said. "I didn't understand all of what happened. I understood enough to know it was a cost you didn't talk about afterward."

"I didn't talk about it because there was no one to talk to about it," he said. "And because the operational assessment didn't require talking. The outpost held. The personnel were protected. The outcome was correct." A pause. "The weight of it was — beside the point of the outcome."

"Costs aren't beside the point," she said. "They're part of the accounting."

"I know that now," he said. "I didn't know it then."

She went back to her room and returned two minutes later.

He had not moved from the window. She came to stand beside him again and put her phone on the window ledge between them — the screen down, the audio running through the small speaker at low volume. The sound of rain. The file she had been carrying for two years since the last time Hanseo had a proper rainstorm and she had stood at her own window and recorded it because she had known, even then, that she would want to remember what real rain sounded like.

He looked at the phone.

Then at her.

She said: "I use it when the city is too loud or too quiet. Neither is quite the right level. Rain is usually the right level."

"The city is quiet tonight," he said.

"Yes."

He looked at the phone again. Then he looked out the window — at the quiet street, the altered skyline, the post-Unreal sky with its wrong-red edges and its flat center.

"I haven't heard rain," he said, "since — I don't know when it last rained at the border. The weather patterns changed in the fourth year. Drier after that."

"The rain here was good," she said. "Hanseo gets proper autumn rain. Heavy, sustained. It sounds like it means it."

He listened to the rain recording for a moment.

"It sounds," he said, "like rain."

"Yes. That's the goal."

They stood in the corridor in the dim light of the building's reduced electrical allocation and listened to the rain that was not rain, and the city was quiet outside, and Do-yun thought about the particular quality of the present moment: two people who had found each other across an impossible distance, standing in a building in a city that had been changed by that finding, listening to a recording of a thing they both needed to hear.

She said: "You can take the phone. For tonight."

He looked at her.

"I won't sleep better for having it," she said. "I know what the rain sounds like. You can have the recording."

"You recorded it," he said.

"Two years ago. On a night when I thought the sound might be useful to have. I was right." She paused. "It turns out I needed it earlier than I thought."

He did not say *I don't need it* or *I'm fine* or any of the other conventional deflections. He picked up the phone from the window ledge — carefully, in the way he handled things he did not want to damage — and held it.

"Tell me about Hanseo," he said. "Before."

She sat down on the corridor floor, back against the wall, because standing in one place for a long time was something she had never found comfortable and the floor was clean and she had stopped caring about the indignity of floors around day four.

"Hanseo," she said. "Before."

She told him.

Not the city as most people described it — not landmarks or history or the broad strokes. She told him the city the way she had known it: the acoustic map, the frequency signatures, the routes that she had walked so many times they had become as familiar as rooms. The convenience store owner who played trot music at six in the morning. The canal that smelled of rain and exhaust and occasionally something green. The accordion player at the main intersection on weekend mornings. The particular quality of the air before a proper Hanseo rainstorm — the pressure change she had learned to read, the specific smell of the city before it got wet.

He sat down at some point — she heard it, the small sound of his descent, and then his presence against the wall on the other side of the corridor, the same position she occupied but across from her.

She kept talking.

The route to the pharmacy. The lunch place three streets east that she had never been into but knew by its smell on Tuesdays when they made something with sesame and ginger that was perceptible from across the street. The library on the district's western edge where she had gone on Wednesday afternoons for two years and where the second librarian from the left always said *welcome back* in the specific tone of someone who had decided that continuity was something worth naming.

The rain recording was still playing on the phone in his hand.

She talked until she ran out of Hanseo and then she was quiet, and the rain played on, and the building was full of sleeping people, and the city outside was the altered version of itself that it had become.

Shin-woo said, into the quiet: "In the garrison, there was a soldier in the third year who had a younger sibling in the southern settlements. She sent letters. He read them at night — I could see the light under his door. He never talked about them in the day. But in the morning he was different from the soldiers who didn't have letters." A pause. "I didn't understand it then. I thought it was a liability — something he was carrying that I wasn't. I thought I was better positioned because I didn't have those letters."

"And now?"

"And now I think he was carrying something I didn't have access to," he said. "Not a liability. The other thing."

She said: "What did you call it?"

A long pause.

"I didn't have a word for it," he said. "I called it the other thing because I didn't know what it was."

"I think I know what it was," she said.

"Yes," he said. "I think you do."

The rain played on the phone, and the corridor was dim, and at some point the quality of his stillness changed — she could not have said exactly when, but there was a shift, from the wide-awake stillness of the not-sleeping to something that had less active maintenance in it. Not sleep — she did not think he had slept. But something closer to rest than she had tracked in the weeks she had known him.

Instability reading: sixty-three.

She sat with that for a while.

At some point near dawn she heard Ha-rin's alarm from two floors up — the teenager always woke before the rest of the group, had established this pattern early — and she stood up, quietly, without waking him if he had finally slept, and went to return to her own room before the building began its morning sequence.

At the corridor's end, she paused.

The phone was still in his hand. The rain was still playing. He had not moved.

She thought: *sixty-three.*

She thought: *the rain from two years ago is being used now. The recording I made because I thought it might be useful. I was right. It turns out I needed it for exactly this.*

She went back to her room and lay down and did not sleep and did not need to.