He didn't think about it.
That was the only way to explain what happened next, there was no decision, no conscious choice, no moment where Yuan Shenzi weighed his options and arrived at a plan. His body moved and his instincts moved with it, and whatever new thing had cracked open inside his chest seemed to know exactly what it wanted.
His right hand found the Shadow Stalker's core.
He didn't know how. The creature was shadow and movement and cold mana woven into something that shouldn't have been touchable, and yet his hand went through the outer mass of it like pushing through smoke, and his fingers closed around the concentrated light at its center, and he pulled.
The sound the Shadow Stalker made wasn't a roar. It wasn't anything with volume or force. It was more like an exhale, something being let go of, and then the shadows composing its body unwound, thread by thread, spiraling inward toward his fist in thin dark ribbons until there was nothing left. No remains, no blood. Just the cold stone floor and a faint trace of mana residue and the thing now burning in Yuan's chest like a coal dropped into water.
He stood there breathing.
[Ding!]
[Ability Extracted: Shadow Stalker — Shadow Step (C-Rank)]
[New Skill Acquired: Shadow Step]
[Skill: Shadow Step]
[Rank: C | Type: Active | Cost: 10 MP]
[Description: Allows the user to move silently and quickly through shadows, becoming momentarily intangible. Duration: 3 seconds. Cooldown: 10 seconds.]
Yuan read the notifications twice. Then a third time.
The passage was quiet except for the distant sounds of chaos, screaming, the crash of stone, something enormous moving through the dungeon at speed. The graduation exam. The F-rank training zone. The controlled, monitored, insultingly easy formality that was currently trying to kill every student inside it.
He looked at his right hand.
Normal. Slightly scraped across the knuckles, no different than it had looked an hour ago. Nothing to indicate that he had just reached inside a monster and pulled its ability out like removing a splinter.
'Try it,' something said. Not a voice, more like an instinct with an opinion.
He thought about the skill description.
'Move silently and quickly through shadows.'
He was standing in a passage where the only light came from faint mana-reactive moss growing in the stone joints. Technically he was already surrounded by shadow.
Yuan took a breath and activated Shadow Step.
The world went quiet.
That was the only way to describe it, not silence from the absence of sound, but a different quality of existence, like slipping into the space between moments. He was moving, covering ground, the passage blurring past him, and he was aware that he was doing it but he couldn't quite feel his feet on the floor. Three seconds. He reappeared at the far end of the passage, crouched against the wall, ten meters from where he'd started.
His heart was hammering.
From something considerably more complicated than fear.
He pressed his back against the stone and made himself breathe slowly, and tried not to think about the fact that he had just used a C-rank movement skill, a skill that belonged to a monster he had killed with his bare hands, approximately ninety seconds after awakening an SSS-rank talent he had never heard of, in a dungeon that was actively trying to kill him.
'What is Ability Extraction?'
He turned the question over carefully. The system notification had called it a talent, not a skill. Passive. Which meant it wasn't something he activated, it was simply something he was, running continuously, waiting for the right conditions. Kill a monster. Pull its ability out. Make it yours.
Every monster in every dungeon in the world.
Yuan sat with that thought for a moment and found that his brain wasn't quite big enough to hold it comfortably.
He checked his status window before he could spiral further.
[Status Window]
-----
Name: Yuan Shenzi
Rank: F (Hidden: SSS)
Level: 1 | EXP: 0/100
HP: 80/100 | MP: 40/50
Strength: 11 (+1) | Agility: 12 (+2)
Sense: 11 (+1) | Vitality: 10 | Intelligence: 10
Skills:
— Basic Punch (E-Rank)
— Ability Extraction (SSS-Rank, Passive)
— Shadow Step (C-Rank)
Inventory: Academy ID Card
-----
The stat increases were small. One point here, two there. But they were there, visible, real, the system acknowledging that something had changed. His Agility bump from Shadow Step explained why the skill had felt so natural, he supposed. His body had been slightly rewritten to accommodate it.
He stared at the Rank: F (Hidden: SSS) line for a long time.
Hidden. Which meant nobody else could see it. His Hunter card would still read F-rank. His academy file would still say F-rank. To everyone outside, he was still Yuan Shenzi, no talent, no prospects, support role if he was lucky.
He wasn't sure whether that was a problem or a shield yet.
What he was sure about was the other thing sitting quietly at the back of his mind, the thing he'd been avoiding since the extraction. The Shadow Stalker had been something. Not intelligent, not human, but something, a living creature with a signature his Mana Sense had recognized as distinct and individual. And he had reached inside it and taken what it had and it had come apart in his hands like smoke.
'Is that—' he started, and then stopped himself, because he already knew what he was about to ask and he wasn't sure he was ready to answer it.
'Is that going to bother me?'
Honestly? He didn't know. It hadn't felt wrong in the moment. It had felt like survival, which it was. But survival and wrong weren't mutually exclusive, and he was self-aware enough to recognize that the part of him cataloguing the Shadow Stalker's skill description with interest was perhaps not the same part that should be in charge of moral reflection.
He filed it away.
'Later. I'll think about it later.'
A scream punched through the dungeon, sharp and close, followed by two more in quick succession. Different voices. Young, panicked, out of breath, student voices.
Yuan closed the status window.
He knew where the sound was coming from. Back toward the main chamber, one of the branching corridors he'd noticed on the way in. Two hundred meters, maybe less. His Mana Sense caught the edge of it now, multiple signatures, most of them the dim, quiet mana of untrained F-rank students, and one much larger signal pressing in against them from above.
He could go the other way. The dungeon had to have maintenance corridors, secondary passages, places a person could sit quietly and let the chaos resolve itself while waiting for the Overseers topside to do something about the anomaly.
It was, objectively, the smarter choice.
Yuan looked down at his right hand again.
Shadow Step. Ten meters in three seconds, intangible. His arm had stopped bleeding, shock, probably, and he was upright and functional and in possession of more power than he'd had at any point in his twenty years of being alive.
The screaming continued.