The revised timeline put the Mapo documentation sign-off on a Monday, which meant Yuna spent Sunday evening at her kitchen table going through the structural notes one final time, not because she doubted the corrections but because she had a habit of reading the last page of her own work as though someone else had written it, looking for the thing she might have been too close to see.
The corrections were clean. The cascade error on the east elevation had been tracked back to page seven of the March survey data, annotated, and resolved with a revised load distribution table that accounted for the fourth-floor implications she had flagged on the site visit. She had written her name in the author field and Kang Inha's in the review field and the date in the date field, which was a form she had filled out many times, and tonight it looked different from how it had looked those other times, though she could not have said with precision what was different about it.
She closed the folder and made tea and did not look at her notebook, which was sitting on the corner of the table with its spine facing her the way it always did, patient, unhurried, full of conditions.
-----
Monday arrived grey and certain, the rain having upgraded overnight from suggestion to commitment, and Yuna got to the office at eight fifteen to find the corrected drawings already on Han Mirae's desk with a note from Inha that she had not seen him leave. She knew it was from him because the note said, in handwriting that was precise and economical and entirely consistent with every other piece of physical evidence of his existence she had encountered: Revised per Monday sign-off. Cascade correction verified. Author: Seo Yuna.
Four words at the end that had not been there before. She stood at Han Mirae's open door and read them twice.
"I see you found it," Han Mirae said, from behind her, which meant she had been standing in her own doorway for long enough for the senior partner to arrive and observe this, which was information Yuna filed away with the mild embarrassment of someone caught caring about something.
"The timeline was Monday," Yuna said, turning. "He put my name in the author field."
Han Mirae looked at her for a moment with the expression she wore when she was deciding how much to say. Whatever calculation she performed was brief. "He has been trying to get your name on structural documentation since the Hangang review," she said. "The Mapo project gave him a legitimate way to do it."
Yuna did not say anything. There was nothing obvious to say, and besides, Han Mirae had already moved past her into the office and picked up the folder, and the conversation was apparently complete, which was the particular efficiency of a woman who communicated in precisely the number of words required and not one more.
Yuna walked back to her desk and sat down and opened her laptop and stared at the screen for approximately forty-five seconds before she actually saw what was on it.
The author field. Since the Hangang review.
She opened a new drawing file and started working.
-----
The office cleared by seven. By seven thirty it was down to the people who had deadlines and the people who had nowhere particular to be, and Yuna was in the second category tonight though she was pretending to be in the first, because the Yeongdeungpo project had a site comparison she had offered to run and the comparison was taking longer than expected.
She had not, until tonight, understood that the Yeongdeungpo project also happened to be Inha's current project, the one with the cantilever he found interesting. She had offered to run the site comparison because Han Mirae had asked and because the work was straightforward and because she had not been thinking about who else would still be in the office at seven thirty on a Monday.
He was at the desk across the open-plan floor, which was not close but was not far, the way things in open-plan offices were never close or far but simply present, visible at the edge of a person's awareness whether or not they wanted them there.
She was not watching him. She was running a site comparison.
She was also, without having made a decision to, aware of the specific quality of his attention when he worked, the way he went still in a manner that was not stillness but concentration, the way the rest of the office seemed to become a different temperature from where he was sitting.
Her coffee had been on her desk since five thirty. She had made it, set it down, and then done what she apparently always did, which was attend to other things first.
She reached for it at quarter to eight and found it cold.
She was looking at it, weighing the calculus of whether the caffeine was worth the temperature, when she heard footsteps, unhurried and familiar, and then Inha appeared at the edge of her desk, picked up the cup without breaking stride, and walked toward the kitchen.
She watched him go.
He came back two minutes later and set a fresh cup down in the same position the cold one had occupied, adjusted it by perhaps a centimetre so the handle faced the direction she had been reaching from, and walked back to his desk without saying anything at all.
She looked at the cup.
She looked at the back of his head, which was giving her nothing, because the back of his head was as composed as the front.
She thought about what she had written three weeks ago: I drink coffee cold because I forget it is there. She thought about his reply: Everything in this is useful. She thought about what it meant that a man who read documents the way he read buildings, looking for what was beneath the stated information, had read those words and then done this, consistently, for however long he had been doing it.
She had not, until this moment, known he had been doing it.
She picked up the cup. It was the right temperature. She drank it without comment and returned to the site comparison, and the office hummed quietly around them, and the rain on the windows ran in its usual indifferent patterns, and neither of them said anything about it.
At eight forty she finished the comparison and began closing her files.
"The Yeongdeungpo cantilever," he said, from across the floor, without looking up. "Page four of the comparison. There is a load asymmetry in the northern section that the current approach does not account for."
She opened page four. He was right, and it was subtle, and she had been three minutes from submitting the comparison without catching it.
"I see it," she said.
"It is not your error. It is in the original specification."
"I know." She annotated the discrepancy and added a flag. "Thank you."
He did not respond to that. She was beginning to understand that he accepted thank you the way he accepted most things that were directed personally at him: he received it, registered it, and did not perform any particular response to it, because performing a response was not something he did.
She submitted the comparison with the flag. She packed her bag. She put on her coat, and she looked at his desk as she passed, and she stopped.
"The author field," she said. "On the Mapo documentation."
He looked up.
"Han Mirae told me you have been trying since the Hangang review." She kept her voice the way she kept most things: level, precise, giving exactly what was required and nothing in excess. "I wanted you to know I noticed."
He looked at her for a moment with the quality of attention she had come to know, which was the attention of someone who was always aware of the gap between what a person said and what they meant.
"I know you noticed," he said. Not unkindly. As fact.
She nodded once, the kind of nod that closed a meeting, and walked to the lift, and the doors closed on the office and its rain-sounds and the particular Tuesday-evening quality of the light, and she stood in the lift going down and thought about the way he had adjusted the cup handle to the direction she had been reaching from.
She did not take out her notebook.
She thought about taking it out, and decided that noting the conditions of a thing did not change the thing, and that some conditions were better carried than recorded, at least for now.
The lobby doors opened onto the rain and she walked into it, and Seoul received her with its usual absence of ceremony.