Then he found the dragon.
It was deep in the living forest, three days' walk from the dead zone's current edge. A territory so quiet it should have been suspicious — no monsters, no animals, no birdsong. Just ancient trees and heavy silence.
Yuki sensed it before he saw it. A mana signature so massive it warped the ambient currents around it like a boulder in a river. He extended his awareness toward it and felt something vast and hot and alive, coiled in a clearing ahead.
He slowed. Engaged all five threads. Accelerated.
The forest opened into a rocky basin — a natural amphitheatre of broken stone and scorched earth. And there, draped across a ridge of volcanic rock like a cat on a windowsill, was a dragon.
Obsidian scales. Fifteen-metre wingspan, folded against its body. A head the size of a car, angular and horned, with nostrils that leaked thin streams of smoke. Claws that had gouged channels into solid stone. A tail that ended in a flanged blade of bone.
It was asleep.
Yuki crouched at the tree line and watched it breathe. Each exhale sent a shimmer of heat across the basin. Each inhale pulled air currents toward it like a living furnace.
That's a dragon. An actual, literal dragon.
His heart was pounding. Five thought threads ran simultaneously: threat assessment, terrain analysis, spell preparation, escape routes, emotional management. The last thread was working overtime.
I could leave. It hasn't seen me. I could turn around and walk away and never come back to this part of the forest.
He could. That was the smart play. He had no reason to fight a dragon. No quest, no obligation, no audience. Just a seventeen-year-old kid in mana-woven clothes crouching behind a tree, deciding whether to pick a fight with the most iconic monster in fantasy.
But if I can't beat a dragon, I can't protect myself from whatever else is out there. And I need to know where I stand.
He stood up. Raised his right hand. Formed a compressed air lance — the tightest, densest projectile spell he could produce. Poured mana into it until it screamed.
Fired.
The lance crossed three hundred metres in less than a heartbeat and hit the dragon in the shoulder joint where the wing met the body.
The dragon shrieked. A sound so loud and raw it shook leaves from the trees. It launched off the ridge with a single beat of its wings, scattering stones and sending a shockwave of displaced air across the basin. Blood — dark, almost black — sprayed from the wound.
It spotted him instantly. Eyes like molten copper locked onto him with an intelligence that was unmistakably predatory. Its jaws opened and the air between them ignited — a torrent of fire so intense the rock beneath it glowed white.
The dragonfire hit where Yuki had been standing. The tree line evaporated. Stone melted. A wave of heat washed over the basin.
Yuki was fifty metres to the left, already moving. Thought acceleration turned the world to syrup. Four threads worked in concert — dodge, analyse, attack, defend. The fifth tracked the dragon's mana signature, reading its next move before it committed.
It's pulling mana into its chest. Another breath attack. Three seconds.
He closed the distance. A burst of reinforcement launched him across the basin in a single stride, cratering the ground where he pushed off. He came in under the dragon's wing arc — too close for a breath attack, too fast for it to reorient.
Mana blade. Right hand. The blue-metal sword ripped from dimensional storage and ignited with energy as his fingers closed around the grip.
He cut.
The blade passed through the dragon's forelimb just above the elbow. Scales parted. Muscle severed. Bone sheared. The limb came away and the dragon screamed again — a different sound this time, shock rather than rage.
It tried to wheel on him. Tail sweeping low, jaws snapping. He was already gone — launched vertically by a platform of compressed air under his feet, rising above the dragon's head. He formed a second blade in his left hand. Crossed them. Dove.
Two simultaneous cuts. One through the base of the neck, one through the spine behind the skull. The dragon's body kept moving for another two seconds — momentum, not life. Then it collapsed, sliding down the volcanic ridge in a cascade of obsidian scales and dark blood, and came to rest at the bottom of the basin with a sound like a building falling.
Silence.
Yuki landed on the scorched rock. His blades dissolved. His parallel threads collapsed back to a single stream of consciousness.
He was breathing hard. Hands shaking. Not from exhaustion — from adrenaline. The fight had lasted maybe forty seconds from first strike to kill.
He stared at the dragon. At the severed limb. At the massive, magnificent body cooling on the stones. At the blood pooling in the cracks.
That was... easy.
Then the pull started.
He felt it before he understood it — that familiar tug in his chest, the same one from the very first day. The dragon's body was bleeding more than blood. Something was rising off it like steam — invisible, enormous, and pouring toward Yuki in a torrent he hadn't asked for.
Mana. Life energy. Whatever this world called the force that kept living things alive — the dragon's was leaving its corpse and flowing directly into him.
His body drank it in. No permission requested, no consent given. The reservoir behind his ribs — already vast, already incomprehensible — swelled. The pressure climbed. His skin flushed hot. His vision sharpened to a painful clarity.
And it was different.
He'd absorbed energy from kills before. Every monster he'd hunted — the wolves, the boars, the armoured lizards — had released a small pulse of mana on death, and his body had pulled it in automatically. He'd gotten used to it. A minor top-up. A sip of water.
This was not a sip.
The dragon's energy was dense and layered in a way the smaller creatures' hadn't been. It tasted — and "tasted" was the only word that fit, even though he wasn't using his mouth — old. Ancient. Like drinking from a well that had been collecting rainwater for centuries. There was depth to it. Complexity. The wolves had given him thin, sharp bursts of raw mana. The boars were heavier, denser. The insects were barely a trickle.
The dragon was an ocean.
It poured into him for nearly a minute. He stood there, locked in place, unable to move while his body processed the flood. The pressure in his chest built and built until he thought he'd burst — that same feeling from day one, the chain reaction, the moment his body had tried to contain more than it was built for.
But this time he didn't lose consciousness. This time his body knew what to do. The mana settled into his reservoir, compressed, integrated. The pressure peaked and then — slowly — stabilised. Like a balloon stretching to accommodate what had been forced inside it.
When it stopped, he stood in the quiet basin and breathed.
He felt fuller. Not just in the mana sense — though that too — but in a way he couldn't articulate. Like the dragon's energy had carried something besides raw power. Knowledge? Instinct? He wasn't sure. But there was a richness in what he'd just absorbed that made everything he'd taken from lesser monsters feel like pocket change.
Is this what happens every time I kill something? The stronger the creature, the more I get?
He looked at his hands. They were shaking again, but not from adrenaline this time.
What am I becoming?
He filed the question away. Added it to the growing list of things about himself he didn't fully understand. For now, the practical reality was simple: he'd killed a dragon, and the dragon had made him stronger in ways he could feel but couldn't measure.
Not effortless. He'd moved fast and hit hard and made the right calls. But at no point had he been in real danger. The dragonfire had been slow — laughably slow in accelerated perception. The physical attacks had been telegraphed. The creature's mana signature had broadcast every intention seconds before execution.
Was that thing weak? Or am I just...
He didn't finish the thought. He wasn't sure he wanted to.
He'd killed a dragon in under a minute. A creature that, in every fantasy story he'd ever consumed, was supposed to be an apex predator. A boss fight. A challenge that parties of heroes spent arcs preparing for.
And he'd cut it apart like he was butchering one of the armoured boars.
Maybe it was a young one. A weak one. Maybe dragons here aren't like the ones in fiction.
Or maybe he was something this world had never seen before. A human body saturated with an impossible amount of mana, enhanced to a degree that no native of this world could match, wielding magic through pure imagination without the constraints of a formal system.
He didn't know. And he wasn't going to find out standing in a crater talking to himself.
Assume nothing. Don't get cocky. Just because I killed one dragon in one forest doesn't mean I can handle whatever else is out there. This world has had magic for who knows how long. There could be things here that would eat that dragon for breakfast.
He knelt beside the carcass and got to work. Scales — harvested and stored. Bones — cleaned and stored. Claws, teeth, horns — stored. The core — a pulsing, superheated crystal the size of his fist buried in the dragon's chest cavity — carefully extracted and stored.
He worked methodically. One thread on the task. One thread on perimeter watch. One thread on the question he couldn't stop thinking about.
How strong am I, really?
No answer came. The dead dragon didn't have an opinion.
Yuki wiped the blood from his hands, pulled his supplies from dimensional storage, and started the long walk back to camp.
He'd be cautious. He'd be humble. He'd operate on the assumption that something out there could kill him until proven otherwise.
But deep down, in the quiet part of his mind that he didn't let the other threads access, a small voice said:
You're not being cautious. You're being scared. And you're scared because you know the answer already.
He ignored it. He was good at that.