The witness log has a glass front now. Mitsuki added it two weeks ago — a small acrylic panel to keep the notebook dry. Jiyeon's reflection appears in it as she reads: bent forward slightly, the way she reads anything that matters, the way she read the emergency evacuation map when they first moved in.
Chae-Gyeol is three steps behind her when she hears: These are all times you walked through.
Not a question.
She says yes.
Jiyeon turns a page. The handwriting changes slightly across the entries — different days, different pressure, the pen sometimes running low. She has been walking past this notebook for weeks and not reading it. Chae-Gyeol has walked past it twice every shift day and signed it twice: once because the building management circulated a request, once because she needed to. She did not know there was a difference until the second time it happened.
You've been documenting yourself.
She had not thought of it that way. She thought she was witnessing. But Mitsuki said the same thing — that the eleven photographs were involuntary documentation, that she was the corridor's first subject. Maybe both are true: you can be witnessing and documented at the same time, depending on who is looking.
Jiyeon reads a third page. The entries are short. Dates, initials, a word or two. The witness log is not a diary. It is closer to a contact sheet — proof of presence without explanation of what the presence was for.
You signed it twice.
The second time was different from the first.
Jiyeon nods. She does not ask what the difference was. Chae-Gyeol had been prepared to explain — to say that the first signature was obligation and the second was choice, that a record of obligation and a record of choice look identical in a ledger but are not identical in the body. But Jiyeon nods as if she already knows this. As if she has made her own version of this distinction somewhere, in some context Chae-Gyeol was not watching.
She has been in the corridor every day too.
She has. The route from their building to the school where Jiyeon takes her morning session passes relay one at 7:40 AM, before the intake queue forms, before Chae-Gyeol arrives. Jiyeon has been in the corridor longer than most people who have ever signed the witness log. She has never been asked to leave something. The log's instruction says if you were here but not here. Jiyeon is here. Present, accounted for, moving from one place to another. The instruction was written for a different kind of presence.
But the way Jiyeon said she hasn't been keeping track — as if keeping track were a choice she could have made, could still make, if she wanted to — makes Chae-Gyeol think about all the things that become visible only when you decide to look for them. The counter at relay four. Her own handwriting in Bok's sheets. The scuff marks on the concrete from where Mitsuki's patient sat for nine minutes with her ankles touching.
The corridor knew Jiyeon by her schedule, not her name.
Now Jiyeon knows it knows.
She closes the glass panel — it clicks softly — and turns to face Chae-Gyeol.
Can you sign it twice about the same thing?
Chae-Gyeol does not know the answer to this. The question assumes there is something to sign about, which means the question assumes Jiyeon has already decided she has been here in the right way. She looks at her — the way Jiyeon holds the glass panel closed with one hand, lightly, the way a person holds something they are considering.
Yes, she says. If the second time is different from the first.
Jiyeon considers this. Then she opens the glass panel and takes the pencil from its cord.