This is something I heard from a friend of a friend. There's no way to verify it, but certain details caught in my mind in a way I couldn't shake — which is why I've decided to share it with you today.
It takes place beneath Shibuya.
The person in question — let's call him K. A salaryman, somewhere in his thirties. One autumn evening, he'd stayed late at work, and by the time he passed through the Shibuya ticket gates, he had maybe ten minutes until the last train. He was in a hurry to make his connection. As you may know, the underground at Shibuya has grown terribly complicated these past few years. Construction walls everywhere, passages that existed yesterday sealed off today without warning. K was used to all that, so he glanced at the signs and walked on quickly.
At some point, he realized he had wandered into an unfamiliar corridor.
He said afterward that he hadn't felt himself turn. He'd been walking straight, he was certain of it — and yet the passage had grown narrower around him, and the color of the fluorescent light had changed. Not the clean white light you'd expect. Something yellower. Older. Flickering, faintly, like a failing bulb.
He thought about stopping, but the last train was still in his head. He kept going.
Then he saw a sign. An ordinary enough thing — white background, black arrows, fixed to the wall. But the number printed on it was wrong.
Do any of you know how many exits Shibuya Station has? Somewhere in the teens, I believe. K had a rough sense of them. But the number on that sign was one he had never encountered. Follow the arrow, it said, and you would reach that exit.
He knew something was off. And yet his feet kept moving.
At the end of the corridor, the space opened up. Not quite a concourse — too bare for that, too empty. Just a wide, flat expanse. The tiles were the wrong color for Shibuya — dull, pale brown, the kind you don't see anymore. There was a smell, he said. Mold, or something close to it. The damp, stale air that gathers in underground places over many years.
There was a shutter. Metal, old, stippled with rust. Closed all the way down, with no sign it had moved in a very long time. The exit should have been there. It was sealed completely.
That was when K said he felt genuinely afraid for the first time.
Standing before the shutter, he noticed the silence. Even near the last train, Shibuya underground always carries some trace of sound — the tremor of a passing train, the low drone of ventilation, a distant voice. There was none of that. Only his own breathing. Only the sound of his soles against the tile.
He turned to go back.
The corridor was gone.
Where the turning had been, there was only a wall. K stood there for some time — he couldn't say how long. Five minutes, perhaps. Thirty. His sense of time had come apart, he said.
Eventually he found another passage, and following it, he emerged into the ordinary, familiar underground of Shibuya.
The last train had long since gone.
Afterward, K looked into it. He searched the station maps, he said — couldn't let it rest. The exit with that number appeared nowhere. He checked older diagrams, pre-redevelopment maps. Nothing.
There was only one thing he found.
The shutter, K said, had been marked. Beneath the rust and the grime, pressed into the surface of the metal, were what looked like handprints. Many of them. Overlapping. As though something on the other side had been pushing outward, again and again, from within.
