He expanded the system over the next two days. A second channel branched off the main one, running to a flat area he'd designated for farming — he didn't have seeds yet, but the infrastructure could be ready when he did. The irrigation channel split into smaller ditches running in parallel rows across the flattened plot. Overkill for a farm that didn't exist yet, but the work was easy and he'd rather do it now than later.
Then he built the bath.
Not a practical decision. A selfish one. He'd been washing with condensed water for months — handfuls at a time, barely enough to rinse off the dust and sweat. He wanted to soak. He wanted hot water up to his neck and nothing to do for twenty minutes.
He carved a rectangular basin into the stone floor of a small annex attached to the main house. Two metres long, one metre wide, deep enough to sit in with water up to his chest. Stone walls, stone floor, smooth as glass — he spent an unreasonable amount of time getting the surfaces right. A channel from the main water supply fed into it, and a drain in the bottom let it empty into the eastern runoff.
The water came in cold. He fixed that with a heating element — a flat stone at the bottom of the basin, enchanted with a low-level thermal spell that kept the water at a constant, comfortable temperature. He could adjust it with a thought. Warm for relaxation. Hot for sore muscles. Cool for the increasingly warm afternoons.
He filled it. Tested it. Stripped off his mana-woven clothes and lowered himself in.
Hot water closed over his shoulders and he made a sound that wasn't dignified and he didn't care.
For ten minutes, he wasn't a dimension-displaced teenager with godlike power and no plan. He was just a guy in a bath. It was the best ten minutes he'd had in months.
The farming plot took another day.
He'd already flattened the land and laid the irrigation channels. Now he enriched the soil — or tried to. The dead zone's ground was lifeless dust, drained of every nutrient during the chain reaction. Nothing would grow in it as-is.
He hauled soil from the forest's edge — dark, rich earth thick with organic matter. Carted it in with earth magic, spreading it across the plot in a thick layer over the dead dust. He mixed in decomposing leaves, rotting wood, and whatever organic material he could find. Without seeds it was just preparation, but the plot was ready. Eight rows, evenly spaced, irrigated, and filled with transplanted forest soil.
If I find seeds — or even just wild plants I can transplant — I'll have a working farm.
He added it to the list of things to acquire from civilisation. Assuming he ever found civilisation.
It was during the farming work that he noticed the encroachment.
He'd been hauling soil from the eastern edge and spotted it — green. Not the muted grey-green of dying moss, but vivid, aggressive green. Grass, pushing up through the dust. Young saplings, barely knee-high, sprouting in clusters. Vines creeping along the ground, reaching inward from the tree line.
The forest was reclaiming the dead zone.
He walked the perimeter and saw it everywhere. The boundary had shifted — what had been a sharp line between grey dust and living forest was now a gradient. Dead zone giving way to thin grass, to scrub, to young trees, to dense undergrowth. The living forest was pushing inward from every direction, filling the vacuum he'd created.
At the current rate, he estimated the dead zone would lose a hundred metres of radius per year. Maybe more. In a decade, there'd be nothing left. The forest would swallow it entirely, and his homestead with it.
No. This is my land. I cleared it — accidentally, but still. I'm not losing it to weeds.
The solution was obvious. Walls.
Not the decorative kind. Not a fence. A proper barrier — stone, high enough and thick enough to physically stop root systems, vines, saplings, and anything else the forest threw at it. A perimeter wall encircling the entire dead zone.
It was an insane construction project. The dead zone was several kilometres in diameter. The circumference was — he did the math in his head and wished he hadn't — somewhere in the range of fifteen to twenty kilometres. That was a lot of wall.
But he had limitless mana, earth magic that could raise stone from the ground in seconds, and nothing but time.
He started at the northern edge and worked clockwise.
The wall rose from the earth in sections — three metres tall, half a metre thick, solid granite pulled from deep underground. He raised each section in a single continuous motion, the stone flowing upward like a slow-motion wave, locking into place with a sound like grinding teeth. Each section was ten metres long. He left no gaps, no gates — if he needed to get through, he could fly over or phase through with spatial magic.
At the base, he extended the wall's foundation a full metre below the surface — a stone skirt that would block root systems from tunnelling underneath. Above ground, he angled the top outward in a slight overhang, making it harder for vines to climb over.
It was monotonous work. Walk ten metres, raise a section, walk ten metres, raise a section. The mana cost was trivial — each section barely registered against his reserves. The time cost was the real expense. Even at his pace, the sheer circumference meant days of steady work.
He didn't mind. There was something satisfying about it — the repetition, the visible progress, the sense of building something permanent. Each new section of wall was a statement. This is mine. This is where I live. The forest stays out there.
It took five days.
When the last section rose into place and the circuit closed, Yuki stood on the roof of his house and looked out over his domain.
A near-perfect circle of cleared land, several kilometres across, enclosed by a continuous wall of grey stone. His house sat near the centre, solid and square, with smoke rising from the workshop chimney where he'd been forging. The water channel glinted in the afternoon light, running from the western wall to the basin by his front door. The farming plot was a dark rectangle of transplanted soil, waiting for seeds. The bath annex steamed gently.
Beyond the walls, the forest pressed in on all sides — dense, dark, and alive. He could hear it from here. Calls and crashes and the constant rustle of things moving through the undergrowth.
But inside the walls, it was quiet. Open. His.
I accidentally destroyed several square kilometres of ancient forest. And now I live there.
He wasn't sure how to feel about that. Guilty, probably. He should feel guilty. All that life, all those trees, all those creatures — gone because his body had thrown a tantrum he couldn't control.
But the guilt was hard to maintain when he was standing on a roof he'd built, looking at a home he'd made, surrounded by walls he'd raised. The dead zone had been a disaster. Now it was a homestead.
Make something good out of something terrible. That's all you can do.
He climbed down from the roof, went inside, drew a bath, and soaked until the stars came out.
Tomorrow, he'd go hunting again. Stock up the food supply — the dragon steaks wouldn't last forever. Maybe push deeper into the forest than ever before, see if there was anything past the territory he'd already mapped. He was stronger now than he'd ever been. More controlled. More confident.
But tonight, he had a home. And that was enough.