Episode 029| Rewriting the Rules

???

Lika stopped on his fifth step.

He couldn't retreat any further. One more step and he'd be on that deep green claw mark from before — that patch of terrain had already been rewritten by the contact target, not somewhere he could stand.

Only one thing was left in his head: that door.

/dev/null. It sat quietly in the Instance root, skipped by every automatic channel. He'd seen it through his internal viewpoint a moment ago, and he was betting it was a back door the past him had left.

The problem was he'd been downgraded to READONLY. He could read, couldn't modify, couldn't run a command. A door he could see and couldn't push open.

---

The contact target raised its claw again.

[The contact target · motion detected]
[Shoulder blade dips · claw center of gravity pulls back]
[Pre-swing tells: 0.4 s]

Lika wasn't watching its claw. He was watching his own privilege field.

He'd been downgraded because the Instance had judged his "request exceeds Triggerer authorization" — afraid he'd modify something carelessly, it had locked him into read-only.

But /dev/null wasn't inside the Instance's jurisdiction. The Instance itself wouldn't touch that path; its privilege checker simply never scanned there.

So if he wrote a command into /dev/null, the checker wouldn't read it, and wouldn't stop him.

It wasn't privilege escalation. It was slipping through a door the Instance pretended didn't exist.

---

He made the decision inside that 0.4 seconds.

The command he'd issued at the contact target earlier had already proven useless — its render priority was MAX, the Instance would refuse to modify it. So this time he didn't touch it.

He wrote a key into /dev/null.

[Path write: /dev/null]
[Instance authorization checker: did not scan this path]
[Back door activated: /dev/null → ROOT privilege temporarily elevated]
[Signature temporarily bypassed: L.K.S._Core]
[Time remaining: 4.2 s]

ROOT.

4.2 seconds.

The back door the past him had left — for the first time, the present him stepped through it.

---

His first command he kept short.

set render_priority(target_id=the contact target) = NULL

He wanted to set its render priority to undefined — so the Instance wouldn't know who to draw first.

The claw was halfway down.

[render_priority(the contact target) = NULL · written]
[Instance compute reallocating...]

The contact target flickered. That was the image flickering; the thing itself didn't move — the scales, the claw, that deep green outline edged in blue, the whole of it dropped a notch in sharpness. The Instance no longer drew it first. It went from "more real than Lika" back to "as real as Lika."

Its strike resolution reverted to normal physics along with it.

---

This time Lika could read its claw.

This time it was on his own, not the kind where his body reacted for him. The claw's trajectory, speed, point of impact — all of it spread open in his Triggerer sense of direction. 7.4 meters per second, landing on his left shoulder.

He turned sideways, half a step.

The claw grazed his coat. This time it was only fabric, not terrain being rewritten. The ice-crystal floor behind it shattered this time — it had lost the priority to rewrite terrain, and the claw was now just a claw.

---

The second command, under ROOT privilege, Lika issued clean.

set local_gravity_vector(layer=current) = (0, 0, +18)

This command targeted the whole layer of the Instance, not the thing.

All of Layer 1's gravity flipped upward and doubled.

On the same beat he issued it, he pinned the one square meter under his feet into the ground with root.

The contact target had no such pin. Its render priority had just been set to NULL — in the Instance's eyes it was no different from an ordinary block of ice — and the gravity took hold of it.

The 7.4-meter-per-second lunge slammed into the doubled, inverted gravity, and its whole body was flung toward the ice-crystal dome eighteen meters up.

It hit. A crack split across the dome. It stuck there, the scales of its lower body still twitching.

[ROOT privilege remaining: 0.8 s]
[The contact target · life signal faint · not terminated]

Not terminated.

Lika hadn't meant to kill it. He didn't even know what it meant to "kill" a piece of code. He only wanted it to stop.

It stopped, stuck eighteen meters up.

---

[ROOT privilege: closed]
[local_gravity_vector: restored to default]
[/dev/null: channel closed]

Gravity restored. The contact target dropped from the dome, crashed into the ice-crystal floor eight meters off, and didn't get up.

The pin under Lika's feet loosened. He staggered, dropped to one knee, gasping.

171 beats per minute.

He'd won the first one. Not with his fists — with a command written into /dev/null.

---

But before it went down, the Instance gave Lika one last message.

This time the Instance didn't flash "unexpected."

[Non-verbal message received]
[Source: the contact target]
[Content: you used that door.]
[Note: he saw.]

"He."

Lika stared at the word. In that message from the contact target, the subject wasn't "I," wasn't "you" — it was some third party outside his field of view.

The contact target lay eight meters off, eyes still open. But its eyes weren't on Lika. They went past him, looking somewhere farther, the far side of the Instance's wall.

Lika whipped his head around.

There was nothing. Only that crack just opened in the ice-crystal dome, letting in a sliver of light — light that didn't belong to Layer 1, coming from higher up, farther out.

On the other side of the crack, it was as if something had just looked away.

【Ch. 029 End · Inside the Instance · Rift Memory Layer 1, beneath the ice-crystal dome】