They argued for less than ten seconds.
That was good.
Any longer and the old place would have started deciding for them.
Serou wanted speed but not stupidity.
Reina wanted speed because old buried structures rarely asked twice.
Yukari wanted to know whether a witness well held records, echoes, or something alive enough to count as either.
Shisui wanted Morita denied the descent.
Sato wanted Kanai not left where a collapsing corridor or second wave could turn him into a hostage.
Eizan wanted to stab anyone who said "temporary split" like it was a normal phrase.
Kaito listened to the shaft instead.
The answer below was not calling him warmly.
Not pulling.
Not inviting.
It was waiting with the kind of patience only old necessary places have.
That made his choice easier.
"I go."
Serou answered at once. "Not alone."
Kaito had expected that.
Reina said, "Me too."
Yukari cut in. "No."
All eyes turned.
Good.
She had something.
Yukari looked at the shaft, then at the note, then at the slab in Kaito's hand.
"A witness well won't care about combat skill first," she said. "It will care about whether the lines entering it make sense."
She looked at Kaito.
"He carries the correction."
Then at herself.
"I carry the witness continuity."
Then at the others.
"The rest of you bring protection, not relevance."
Silence.
It was a hard sentence.
An ugly one.
And mostly true.
Serou hated it on instinct.
Kaito could see that.
Good.
That meant he was still thinking like someone who protected people first and liked the old systems less each hour he had to listen to them.
Reina surprised him.
"She's right."
Serou looked at her coldly.
"Are you volunteering to stay above while they go down?"
Reina held his gaze.
"No.
I'm saying too many people entering a witness well may be the same as entering under title."
That landed.
Because yes—
a place like this, old enough and sharp enough, might treat a group descent as pressure instead of inquiry.
Shisui said quietly, "Then Kaito and Yukari."
Sato spoke next, practical as ever.
"Who stays with Kanai?"
"I do," Eizan said at once.
No hesitation.
Good.
Kanai lifted one brow at that.
"I knew there was a reason I kept you around."
"You didn't," Eizan said.
"But say it again if you're dying. I'll let you."
That almost got a breath of laughter out of Sato.
Almost.
Serou made the decision.
"Kaito. Yukari. Down."
"Reina, you stay at the mouth."
"Shisui with me on the door line."
"Sato and Eizan with Kanai in the corridor."
He looked at Morita's silhouette outside.
"No one lets him in."
Simple.
Correct.
Kaito moved first toward the shaft. The iron rungs looked older than the corridor above, older even than the drawer and teaching line. Not rusted through. Just worn by enough hands over enough years that the center of each grip had been polished by burden rather than use.
Witness well.
The phrase kept growing uglier the longer he stood near it.
Yukari came beside him and looked down once.
"I don't like this."
That almost made him smile.
"Good."
She gave him a thin look.
"That wasn't reassurance."
"No," he said. "It was agreement."
Fair.
He tucked the slab inside his inner layer again, kept the copied note secured, then lowered himself onto the first rung.
The cold below was immediate.
Not winter cold.
Stone depth cold.
Water-holding cold.
Truth buried below speech cold.
Yukari followed.
Above them, the corridor held for one more breath—Serou's silhouette, Reina near the shaft lip, Shisui turned half toward Morita and half toward the dark beyond the entrance, Sato lowering Kanai carefully into better shadow, Eizan at the corridor bend with blade loose in hand like he had always been born waiting for bad men in narrow places.
Then the shaft swallowed the line of sight.
The descent was longer than it should have been.
Of course it was.
A witness well would never sit shallow enough for ordinary confidence.
Kaito counted in silence:
ten rungs,
fifteen,
twenty-two.
Then stone ended below his boots and he stepped into ankle-deep water cold enough to shock the breath out of him.
He did not curse.
He wanted to.
He did not.
Yukari dropped down beside him and hissed once through her teeth.
"Still hate this."
The chamber below was round.
Not large.
Not tiny either.
A well in shape, but not open vertically the way the word makes most people think. More like a circular stone chamber built around a central black water pool with three narrow ledges and one low wall recess directly opposite the shaft.
No shelves.
No desks.
No obvious archive.
Good.
That would have been too simple.
Kaito listened.
The seal in his wrist had gone quiet.
Not dead.
Respectful.
The slab at his side was colder than before.
The well noticed it.
The well noticed Yukari too.
Not as two people.
As two lines entering together under unresolved relation.
Yukari breathed slowly and looked around.
"There are no records."
"No," Kaito said.
He was beginning to understand this place now.
A witness well would not hold ordinary records.
Ordinary records can be seized.
Copied.
Burned.
Rewritten.
Filed under title.
This place was built for something else.
He looked at the black water in the center.
"Maybe the witness is the record."
Yukari's face changed.
Not because the sentence sounded dramatic.
Because it fit too well.
Of course.
If a truth is dangerous enough that title cannot be allowed to own it, then maybe you don't store it on paper at all. Maybe you bind it to relation, voice, memory, or conditioned recognition that only activates under the right lines.
Then the water moved.
Not much.
Just one ring spreading slowly across the black center.
Kaito went still.
Yukari whispered, "That's not us."
No.
It wasn't.
Something below the surface had answered their presence.
Not waking.
Aware.
Kaito stepped around the ledge, careful not to send unnecessary ripples into the pool.
The wall recess opposite the shaft looked empty from above.
From here, he could see a narrow stone basin built into it and, above that, a line of writing too low and too worn to notice without entering the chamber itself.
He moved closer and read.
Witness may speak where custody cannot reach.
The whole room sharpened.
There.
The purpose.
Not a prison.
Not exactly.
A chamber where testimony could exist outside ordinary authorized hands.
Yukari came to stand beside him and read the line too.
"That's…" She stopped.
He knew.
He felt it too.
This place was old.
Cruel in its way.
Cold.
But not corrupt in the same language as Root.
It had been made because someone in the village's older spine had understood a terrible problem:
sometimes truth must survive in a place authority cannot directly touch, even if that place itself is harsh.
Kaito looked back toward the black water.
"What speaks here?"
The answer came not from Yukari.
From the pool.
A second ripple crossed the dark surface, then a third.
Then, very slowly, a pale shape rose under the black water—not body, not ghost, not something human climbing up from below, but the suggestion of a face held in depth just long enough to make recognition feel possible before slipping away again.
Yukari's breath caught.
Not loudly.
Enough.
Kaito looked at her.
"What?"
She stared at the water.
"I know that pattern."
And before he could ask from where, the water answered her with a voice so low it seemed to form more in the stone than in the air.
"Then say her name."