The college hallway was the kind of place that had decided, at some point in its architectural history, to take itself very seriously.
High vaulted ceilings. Stone walls the color of old parchment, scored by the particular quality of light that only tall windows can produce — the kind that falls in long golden rectangles across a marble floor, striped with shadow at precise intervals, like a sentence with too many commas. Pendant lanterns hung from above, ornate and unnecessary given the sunlight, but present nonetheless, because institutions of higher learning apparently felt that beauty was a policy worth enforcing even at noon.
Students moved through it in loose clusters. Some carrying bags, some carrying the expression of people who had made a decision about waking up this morning that they were already regretting. The hallway stretched long ahead, narrowing toward a bright arched window at the far end, the outside world visible beyond the glass as a suggestion of green trees and ordinary sky.
I walked through it without knowing where I was going, letting the flow of bodies guide me the way a river guides a leaf that has stopped struggling.
Habit.
That was probably what it was. The body knew its route to class even if the mind didn't. This was procedural memory at work — the same mechanism that could guide a hand to a light switch in a dark room, or get a person through a commute while their thoughts were somewhere else entirely.
I let it guide me. It seemed rude not to.
II.
The lecture hall was large enough to make a person feel small in the specific way that institutions design for.
Tiered seating in wide curved rows, upholstered in blue, each row looking down toward a professor's podium where a man in a grey suit was advancing slides through a presentation about something involving bar charts. Laptops open. Tablets angled. The mechanical sound of styluses against glass, pens against paper, the faint percussion of a room full of people trying to look more attentive than they were.
Every seat was already taken.
Except one, in the far corner by the window.
I made my way to it.
Habit, probably. Or the late-arriving logic of a brain that had, at some point, made peace with always being the last one seated. I could construct a flattering story about it — letting the crowd settle first, a deliberate choice, a chess move disguised as tardiness — but that required a level of self-mythology I wasn't sure I'd earned yet.
The corner seat had the window on one side and nobody on the other. I sat in it and arranged myself into what felt like a position I'd occupied many times before, though the memory of any specific class, any specific afternoon, remained politely absent.
Around me, the other students ignored the new arrival with the practiced ease of people who were used to ignoring him.
I tried to read their faces without being obvious about it.
Hostile was the first word that surfaced. Not aggressive — nothing as energetic as that. More the particular coldness of people who had formed an opinion about a person and were no longer interested in revising it. The glances that slid away a half-second too fast. The slight tightening around someone's mouth when they noticed me sitting down.
Why?
The question turned itself over while I looked at the bar charts without seeing them.
I had already taken an inventory of the body I was in this morning, somewhat accidentally, while standing in front of the bathroom mirror. It was the kind of body that drew attention without trying — broad shoulders, the particular build of someone who spent significant time doing something physical and not complaining about it. The punching bag in the room. The instinctive way the muscles had moved getting dressed.
Sports, probably. Some kind of athletics.
Which should have made things easier. Social ecosystems organized themselves reliably around people who were good at physical things. It should have meant popularity, or at least basic goodwill.
Unless something had happened to cancel that out.
A protest? Some kind of incident?
Or — and this felt more likely, the more I turned it over — the problem wasn't external at all.
Maybe they're not actually hostile. Maybe I'm simply reading ordinary indifference as hostility because that's what my perspective produces.
A person who walked through the world expecting to be disliked would find the evidence for it everywhere. It had a name. Confirmation bias. The mind locating the data points that fit the story it had already decided to tell.
Was that what original Kiyoshi did?
The thought settled uncomfortably. The professor advanced another slide.
I wrote nothing in the notebook that was apparently already open in front of me, filled with handwriting I recognized as mine without being able to remember producing any of it.
III.
The Literature Club room was on the third floor, at the end of a hallway, past a window that never quite closed all the way — I knew this before I arrived, the way I knew other things about this life, assembled from the general rather than the specific.
The smell hit first.
Old paper and instant coffee. The particular atmospheric blend of a room that had been used for quiet, warm purposes for a long time. It wasn't an unpleasant smell. It was, in fact, immediately and completely familiar in the way that certain smells bypass the intellectual brain entirely and go straight somewhere older.
This is a place I spent time.
Real Kiyoshi spent time.
Four people were in the room.
Two of them I catalogued quickly. The first — Tadashi, I learned from the way the second one greeted him — was sprawled across two chairs in the specific way of someone who had claimed his territory early and saw no reason to apologize for it. Brown-haired, glasses slightly displaced on his nose, the kind of easy physical confidence that didn't need to announce itself. He was arguing about something to no one in particular, gesturing with a book in a way that suggested the argument had been going on longer than anyone had asked for.
The second — Yasuo — sat in the corner in the way a storm sat in a corner: contained, pressurized, not particularly interested in being approached. He was sketching in the margins of a novel that he was technically supposed to be reading. His expression suggested that math quizzes had happened to him recently and had not gone well. (There was a test visible under his elbow, face down, in the particular way that people leave things face down when they don't want to be reminded of them.)
Tadashi, meanwhile, was doing mathematics of his own — but not college-level mathematics. High school level. Worked carefully, referenced seriously, the kind of attention given to material that is genuinely unfamiliar and not simply being reviewed.
That's strange.
I turned it over while pretending to be looking at the bookshelves.
He didn't look like someone who had failed and been required to revisit foundational material. He looked sharp, attentive, the kind of person who found arguments about long-dead Russian novelists genuinely urgent. High school mathematics in a college setting meant something else.
A younger sibling.
The thought arrived fully formed and satisfied. Someone at home who struggled, who needed help that Tadashi was quietly arranging to provide. He was working through it to remind himself of the steps — not because he'd forgotten them, but because explaining things to a struggling student required a different kind of knowing than simply doing them yourself.
The conclusion sat in my chest with a small, warm certainty.
I'm correct.
I'm definitely correct.
"Hehe," I said aloud, without having planned to. "I am genius."
I even put my hand on my hair and pulled it upward a little. Dramatically.
Every head in the room turned.
The silence was brief but thorough.
A girl with pink hair was looking at me with an expression balanced between curiosity and concern.
That must be Yui.
She was the fourth person in the room, the one whose voice I apparently recognized most readily among the club members — though I couldn't have said why until I'd been in the room thirty seconds and she'd already talked more than either of the other two had in the entire time I'd been observing them.
She had a way of leaning forward when she spoke, slightly, as though everything she was saying mattered enough to close the physical distance a little. Her eyes were sharp and her energy was the kind that filled a room without making a noise about it — the quality of a person who is genuinely interested in the things around her and doesn't think to conceal it.
"Tsukishiro," she said, carefully. "Did you say something?"
Tsukishiro. My family name, assembled and filed away for later.
"Oh, nothing," I said. "I was just thinking a bit loudly."
From the back of the room, one of the other two — Tadashi, I thought, without being entirely sure — observed that he had heard something that sounded very much like 'I am a genius, hehehe.'
"I was working through a problem," I said. "And I got the answer. That's all."
"Ah," came the voice from the back. "We never said you couldn't do HEHEHEHEHE."
I closed my mouth.
The decision not to engage was made quietly, and survived.
IV.
The afternoon filtered in through the club room's ill-fitting windows, turning the old paper smell gold.
Everyone else had gone — back to class, back to whatever the tiffin bell had called them toward. The room had contracted to two people and a comfortable silence that was apparently comfortable for only one of us.
Yui moved around the far side of the table, stacking chairs with the calm competence of someone who had done it many times before and didn't find it interesting enough to think about while doing it. This freed her thinking to go somewhere else.
She wasn't shy, exactly. I had revised that initial reading within the first ten minutes of observation. She was something more specific — a person who directed her boldness selectively, who could stand in a room and fill it with her voice about Walter Isaacson and whether biography constituted a legitimate literary form, but who became something quieter and more careful in other configurations.
I was apparently one of those configurations.
Why?
"Tsukishiro," she said, still not looking up from the chairs.
"Mm."
"Be honest with me for once."
She set a chair down and rested her chin on the back of it, looking across at me with eyes that were sharp and entirely direct.
For once. Interesting word choice. It implied a pattern of not being honest, or at least of being withheld. It implied she'd tried to get something real out of me before and been handed a performance instead.
Her eyes were doing something complicated. There was an emotion there that had been carefully managed down to its smallest possible expression, but she hadn't managed it all the way to invisible.
"Are you..." She paused. Looked at her own hands for a fraction of a second. Then back. Her cheeks had gone slightly pink. "...dating someone?"
The question hit differently than I expected.
Not because it was the question — it was a straightforward question, the kind friends ask, the kind that means I notice something in you that you won't explain, so I'm going to name what I think it is and see if you correct me.
It hit because of the silence in my own chest when I reached for the answer.
My fingers tightened around the stack of books I was holding. Kafka. Mishima. A dog-eared copy of No Longer Human that had clearly been read many times, the spine cracked in three places.
"…No."
The word came out correct. Technically accurate, as far as I could confirm. No one had messaged me this morning with a good morning photograph. No face appeared when I looked for one.
"I wish I had," I added, and then laughed once, short and genuine.
Yui's expression did something complicated.
"Really?"
"Really."
She was quiet for a moment, setting another chair down with careful hands.
"Because you get this look sometimes," she said. "Like you're thinking about someone who isn't in the room."
I turned away and began sliding books back into the shelf. One by one. Kafka. Mishima. The battered Dazai.
"You're imagining things," I said.
"I don't think I am."
She didn't push further.
She never did, apparently. That much was clear even from three hours of observation. Yui operated on the principle of the open door — asking the question and leaving it ajar, walking away without closing it behind her, trusting that eventually the person inside the room would decide on their own whether to come through.
It was a patient strategy.
It was also extremely difficult to argue with.
V.
The void had no business showing up in a college afternoon, and yet.
It arrived the way it always did — gradually and then all at once, the thoughts tightening their circles, faster and sharper and louder, until the room behind the eyes was not the club room anymore but somewhere darker and older.
Aiko.
The name lived behind his teeth every single day. Behind the teeth of the original Kiyoshi — the boy with the perfect scores and the Japanese-literature professor who had apparently cried, actually cried, at something he wrote, and had pinned it to the faculty board as evidence of something. The boy who could recite entrance exam passages word for word and name every member of the 1945 Buraiha literary circle in birth order and tell you the exact page number where Akutagawa first mentions the rashōmon in the dark.
All of that, and he couldn't say one name out loud.
What happened to you?
The question turned itself over in the dark. What happened that was bad enough that the whole episodic record went blank and left only the surface — the facts, the dates, the literary citations, the skills — while everything warm and specific and personal vanished?
I could recite the books.
I could not remember my mother's voice saying my name.
I could not remember the last time I laughed without constructing the laugh first.
I could not remember why the punching bag had blood on the cloth beside it.
The memories that had returned were all photographic. Sharp and flat and useless, like photographs of people you've never met. The image was there but the feeling attached to the image was not.
And somewhere inside that precise, armored, brilliant silence — the original Kiyoshi had been waiting for a girl whose face wasn't allowed to exist during daylight hours.
Aiko.
The name was the only truth left. The only thing that arrived with warmth still attached.
Stop.
The word formed and didn't quite make it out.
Stop—
The pain arrived without warning and without apology. White-hot, specific, a spike driven straight through the center of the skull. The kind of pain that doesn't ask permission and doesn't offer context.
The floor tilted.
One step toward the door.
Just one.
Her name formed on the lips and never completed itself.
The floor came up.
VI.
White ceiling. Fluorescent hum.
The nurse's office resolved slowly, the way all things were resolving these days — from blur to sharpness, reluctantly, as though clarity required convincing.
13:47. Clock on the wall. A curtain half-drawn around a narrow bed. An IV stand in the corner, empty and present like a piece of punctuation that had wandered into the wrong sentence.
The headache was still there, but downgraded. The hammer had been replaced by a dull, bureaucratic ache that intended to stay for a while but had at least stopped making a scene.
Two people were beside the bed.
Kiyomi was on the left, arms folded across her borrowed cardigan, worry sitting between her brows like something that had been there for longer than this afternoon. She looked at me the way someone looks at a person who has just done the specific stupid thing they were afraid the person was going to do.
On the right — closer — was Yui.
Her hands were twisted together in her lap. Her uniform was neat. The moment my eyes opened her head came up fast, and then immediately everything in her face went complicated and pink and she looked away, then back, then away again, conducting a brief internal negotiation about where it was safe to direct her gaze.
"You're awake," Kiyomi said. She leaned forward and flicked my forehead. Not hard. Precisely as hard as she always did it, which was lightly enough to be a statement rather than a complaint. "Don't you dare scare me like that again."
"The nurse said stress and low blood sugar," she continued, settling back. "You hadn't eaten since yesterday, had you? You sound like someone from a household that can't afford rice. We can afford rice, Kiyoshi. This is documented."
My throat was lined with something that felt like sandpaper and had the same interpersonal warmth.
Yui stood up so quickly the plastic chair scraped backward. Her face, which had already been pink, completed its journey to red with the efficiency of a process that had been waiting for an excuse.
"W-water! I — I'll get water!"
She crossed the room to the sink in a way that could be generously described as purposeful and less generously described as controlled panic. Her hands were shaking while she filled the paper cup. Some of it escaped over the edge onto her sleeve. She didn't appear to notice.
She came back and kneeled beside the bed, both hands cradling the cup with a care that exceeded what a paper cup technically required.
"S-slowly," she said, barely above a whisper. "Just a little at first."
The water was cool. She tilted the cup carefully. Her fingers grazed my cheek — accidental, or at least built from the materials of accident — and she flinched as though she'd touched something warmer than expected, cheeks flaring brighter.
I swallowed.
"Thank you," I managed. Hoarse, but present.
Yui sat back on her heels, staring at the floor. Her ears had gone completely scarlet and did not appear to have any plans to recover.
Kiyomi watched this with a small smile she hid quickly, in the specific way of someone who is not as subtle as they believe themselves to be.
"You collapsed right in front of me," Kiyomi said, voice going flat in the way that meant the emotion behind it was being compressed into a smaller space than it wanted. "One second you were standing there. Then you weren't." A pause. "I carried you all the way here. By the way."
She said it with the grin of someone who had carried a person of considerable weight across a building and intended to hold this fact as social currency for a defined period.
She's flexing.
My twin sister is flexing at me while I'm in a nurse's office.
"Don't move too fast," she added. "You are, incidentally, heavy as hell. For reference."
Yui had still not looked up.
"Are you hurting anywhere else?" she asked, at the floor. Her hand rose, gestured vaguely at my temple, and then dropped again without completing the motion.
The room was quiet.
I shifted slightly — and both of them reacted as though I had shouted.
Something settled in my chest, watching them. Something warm and confused and not entirely comfortable, because the warmth was borrowed from a life I hadn't lived and was being directed at people who deserved the real version and were getting the approximation.
I'm an imposter.
The thought arrived clean and cold. Not cruel, simply accurate.
They're looking for Kiyoshi. And I'm not sure I am.
And then, immediately after: But what if I am? What if this is just amnesia? What if the person they love is still in here somewhere, and I'm just the part of him that can't access the rest?
The question had no answer. I'd been through the topology of it enough times that morning to know it was a closed loop.
The flash came and went. The void and the knife and the man with no face, surfacing for one white instant and then receding.
I closed my eyes.
Breathed.
When I opened them, Yui was watching me with an intensity she immediately abandoned, staring at her knees as though they'd done something interesting.
"I… skipped last period," she said. Each word got slightly smaller than the one before it. "It was the philosophy lecture. Tadashi and Yasuo are taking notes for me. I just… didn't want you to wake up alone."
The last sentence arrived at approximately the volume of a thought that had accidentally become words.
"I wonder why Yui skipped class," Kiyomi said, in the voice of someone who had been waiting to say exactly this. "Yui, you never skip class."
Yui made a small, mortified sound and hid her face in her hands.
I reached over without deciding to. My hand landed on top of her head — light, slightly clumsy, not entirely sure of itself. She went completely still, the way a person goes still when something unexpected has been kind to them and they're not sure how to process it.
Five seconds. Maybe six.
I pulled back.
"Thank you," I said. "Both of you."
Yui peeked through her fingers. Her eyes were wide and still shining. The blush had not negotiated any kind of retreat.
Kiyomi exhaled — long, slow — and leaned back in her chair with the posture of someone standing down from a very specific kind of alert.
"You're stuck with us, you know," she said. "No passing out allowed anymore. Doctor's orders. Twin sister's orders." She glanced sideways at Yui, who had frozen solid again. "...And apparently club president's orders, too."
Club president.
Yui is club president.
I filed that away alongside everything else, in the growing folder labeled things about this life that are becoming clearer.
Yui made a sound in the register of a mouse that had been surprised by geometry.
I closed my eyes.
The pain was still there. The gaps were still there. The unanswerable questions were still exactly where I'd left them, patient and unresolved.
But the hand that had been on my head was still warm. And the room, for all its fluorescent hum and antiseptic smell, was occupied by two people who had stayed.
For the first time since waking up in that destroyed room with the knife in my hand and no name in my mouth —
I was not alone with the dark.
And that, somehow, made it feel a little smaller.