The first fight was against a woman named Sera Voss.
B-rank. Level Thirty-eight. Primary specialization: speed-type close combat with a secondary in mana-reinforced striking. Koren's matchmaking notes, delivered through Cole an hour before the event, were three lines long and contained more useful intelligence than the Registration Authority's public profile.
"She's clean," Cole said. "Independent hunter, no guild affiliation, fights in the Circuit for supplemental income. Not political. Not connected to any of the Five Pillars' intelligence operations."
"Koren's sure about that."
"Koren doesn't book political fights for assessments. The first card is always clean opponents. She's building your profile — she doesn't want variables." Cole looked at the basement's entrance. "After the first card, the matchups get interesting."
The basement was different at operational capacity. Forty observers in the perimeter seating — a mix of independent hunters, off-duty guild members, and a category of people Shin's perception classified as non-combatant but financially invested. Gamblers. The purse structure Cole had mentioned operated through a betting network that Koren controlled.
Shin was the third fight on the card. The first two were straightforward: a C-rank grudge match that lasted four minutes, and a B-rank technical bout that went to submission at six. The observers watched with the focused attention of people who were both entertained and calculating.
The fighting surface was the same high-density polymer. No weapons. Hand-to-hand. The Circuit's rules, as Cole had explained them: no killing strikes, no permanent injury intended, the fight master calls the stop. Everything else was open.
"Third bout," Koren's voice from the console. "Entrant Six versus Voss."
Entrant Six. Not his name. The Circuit operated on numbered identifiers for participants who hadn't established a regular card presence.
He stepped onto the surface.
Sera Voss was already there. Five-seven, lean, the musculature of someone who had trained speed-type combat for years. Her mana output read at Level Thirty-eight — roughly 380 stat points. Her movement as she settled into stance was economical and practiced.
She looked at him with professional curiosity. She didn't know who he was. The Circuit's numbered identifier system meant she saw a new fighter, unknown quantity, booked at B-rank parameters.
"Begin," Koren said.
Voss came forward. Fast.
Level Thirty-eight speed was a different category from Rahl's assessment-mode C-rank tempo. Voss moved at her genuine speed and her genuine speed was close to Shin's twenty-eight agility — close enough that the margin was uncomfortable.
Her opening combination: a feinted jab to draw his guard high, then a mana-reinforced body shot that came in below his elbow. The reinforcement multiplied the strike's force beyond what her physical strength should produce. The impact caught him at the bottom of his rib cage.
He felt that one.
Twenty-two endurance absorbed the force but the mana-reinforcement component — the energy threading through the strike — bypassed part of the physical resistance. The hit resonated through his torso. Not damage. Sensation. The kind that told you the next one would be worse.
He adjusted. Stepped offline. Reset his guard.
Voss came again. Faster. She was reading his adjustment speed and calibrating her approach. A skilled fighter recognizing the response pattern and attacking the adaptation window — the two-second period where someone is processing new information and hasn't finished integrating it.
She caught him with a hook to the temple.
The mana-reinforcement was stronger this time. Deliberate escalation. The strike connected clean and his perception flickered — not blackout, but a half-second disruption where the forty-point spatial awareness stuttered.
He stumbled. Not manufactured this time. Real.
The observers shifted. Someone in the perimeter seating said something he didn't track. The perception disruption resolved in one second but one second was a long time on a fighting surface with a B-rank speed specialist.
Voss was already in the follow-up. A knee strike to the body while he was recovering, the mana reinforcement threaded into the impact point. His endurance stat registered the force as significant — above the threshold where his body was treating combat as baseline activity.
His heart rate spiked. Sixty-two to ninety-four in two seconds.
The cardiac monitor on Mira's display — if she was monitoring, and she was — would show the first combat elevation she'd recorded.
He moved.
The twenty-eight agility got him out of the follow-up range but Voss was tracking. Her speed was functionally equivalent to his. The power differential that should have made this fight manageable — his 148 stats against her estimated 380 — wasn't working the way the numbers suggested because the mana-reinforcement component wasn't a stat-line item. It was a skill. A trained technique that amplified output beyond raw numbers.
He didn't have mana-reinforced strikes. His fourteen mana points were barely functional. At Level Zero, he'd had zero mana. At Level One, the fourteen points were enough to register on detection systems but not enough to fuel combat techniques.
Voss had 380 stats including a mana pool that supported sustained reinforcement. He had 148 stats with no mana application.
The matchup wasn't what he'd calculated.
"The mana reinforcement," he said between exchanges. Not to Voss. To himself. Processing.
Voss came in with a three-strike combination. Jab, cross, overhand. Each strike threaded with the reinforcement that made a 380-stat fighter hit like something significantly worse. He avoided the jab and cross. The overhand caught his forearm — the same right forearm that had taken the boss's strike in Iron Caverns.
The forearm held. The endurance stat absorbed the mana component better at the extremity than it had at the torso — the tissue density at the forearm higher, the bone integrity more robust.
Information. His body handled mana-reinforced strikes differently at different points. The extremities were more resistant. The torso was vulnerable.
He changed his guard. Higher. Tighter. Protecting the body at the cost of peripheral coverage.
Voss saw the adjustment and went low. A sweep targeting his lead leg. The mana reinforcement in her shin made the sweep fast enough that his check was late — not the twenty-eight agility failing, but the perception's pattern prediction misfiring because mana-reinforced movement didn't follow the timing he'd calibrated against.
His pattern recognition was wrong.
The realization hit him between strikes. The forty perception points that had read Rahl's B-rank combinations three moves ahead — that predictive capability was calibrated on physical movement patterns. Mana-reinforced movement had different timing signatures. The reinforcement altered acceleration curves, peak velocity, and the deceleration window in ways his pattern database hadn't encountered.
He was fighting with the wrong prediction model.
Voss's sweep took his lead leg out. He hit the surface.
The impact: his back on the polymer, Voss repositioning for a follow-up, the observers reacting to the takedown.
He rolled. Got his feet under him. Stood.
Voss was patient. She'd put him down and she was waiting to see what he did with it.
He recalibrated.
Not the pattern database — that would take dozens of fights against mana-reinforced opponents to build. The real-time response. Instead of predicting based on physical timing, he switched to reactive mode — responding to what was happening instead of what his perception predicted would happen.
Reactive was slower. But reactive against a known variable was more accurate than predictive against an unknown one.
Voss came in. He responded to each strike as it initiated rather than anticipating. The margin was thinner — centimeters instead of the comfortable margin he'd had against non-reinforced opponents. But the responses were accurate.
He landed a counter. A straight right to her shoulder, targeting the joint. Twenty-six strength without mana reinforcement. The strike was clean but the impact was — less. Voss's body absorbed his non-reinforced strike better than his body absorbed hers.
The asymmetry. He hit her with physical force. She hit him with physical force plus mana. On a level playing field of raw stats, he was down 230 points. With the mana component factored in, the gap was wider.
The fight continued for three more minutes. Shin absorbed two more clean shots — a body kick that made his ribs ache and a cross that split the skin above his left eye. He landed four counters, none of which produced the effect that his strikes on dungeon monsters had.
Dungeon monsters didn't have mana-reinforced bodies.
"Stop," Koren called.
Voss stepped back. Breathing hard but controlled. Shin was breathing harder. The cut above his eye bled into his eyebrow. His ribs protested every inhale.
The observers were quiet. Then the murmur started — the sound of forty people recalculating what they'd expected versus what they'd seen.
Shin walked to the surface's edge. Cole was there with a towel.
"The mana reinforcement," Cole said.
"I didn't account for it."
"No." Cole handed him the towel. "Nobody told you about the mana component because—" He stopped. Scratched the tattoo. "Because I assumed you knew. Every B-rank fighter in the Circuit uses reinforcement. It's standard technique above C-rank."
A standard technique that Shin hadn't encountered because his fighting experience was against dungeon monsters and a controlled assessment with a house fighter who had been limiting his output. Rahl's assessment hadn't used mana reinforcement at C-rank parameters because C-rank fighters didn't have the mana pool to sustain it.
He'd walked into a B-rank fight with a C-rank combat model.
"The experience attribution," he said.
Cole checked the display near the console. His face changed.
"Point-three percent."
0.3%. Below the estimated range of 0.5 to 1.2. The fight's outcome — not a loss, since the fight master called the stop, but not a dominant performance — had affected the attribution.
The system credited experience based on combat performance against higher-level opponents. A fight where Shin had been outperformed by a B-rank speed specialist produced less than a fight where he'd demonstrated superiority.
Performance mattered. Not just participation.
"The mana component," he said to Cole. "I need to understand it before the next fight."
"The next fight is in three days. Same card schedule."
Three days. The same three days until the Iron Caverns boss respawned.
He looked at the cut above his eye. Blood on the towel.
Koren was at her console, recording. Her assessment profile for Entrant Six was updating in real time. The data from the Voss fight: Shin's mana vulnerability, his pattern-recognition failure against reinforced movement, the gap in his combat model.
She'd matched him against a speed-type B-rank with mana reinforcement specifically to find these gaps.
The assessment wasn't finished. The assessment was ongoing. Every fight was another data point.
He pressed the towel to the cut and looked at the shadow experience counter.
22.2%. The day's C-rank grinding plus the Circuit fight combined.
The C-rank dungeon had contributed 0.2%. The Circuit fight had contributed 0.3%.
Both pathetic. Both real.
He dropped the towel into the medical kit and looked at Cole. "The mana-reinforcement technique. Who teaches it."
Cole looked at him. "You want to learn mana reinforcement at fourteen mana points."
"I want to understand the mechanics. The timing signatures. The acceleration patterns." He touched the cut above his eye. "I can't predict reinforced movement because I've never studied it. Three days to build a new prediction model."
"That's not—" Cole stopped. Looked at the ceiling. Laughed once, the way he laughed before serious statements. "Man. Okay. I know someone who teaches the fundamentals. Tier 3 training center, independent instructor, owes me a thing." He paused. "It's going to hurt. Learning to read reinforced patterns means taking reinforced hits until your body calibrates."
"My body calibrates fast."
Cole looked at the cut, the ribs, the way Shin was standing slightly off-center to favor the side Voss hadn't targeted.
"Yeah," he said. "I noticed."
The basement was emptying. The observers filtering out through the same freight elevator, the operational security of Koren's network ensuring nobody lingered. Voss had left without comment — professional distance, no personal interest in the fighter she'd outclassed.
Shin stood in the basement with 0.3% more shadow experience and the first real education he'd received since reaching Level 1.
The education: his stats were not enough. Numbers on a counter were not combat capability. A hundred forty-eight points without technique was a weapon without a user.
The C-rank dungeon hadn't taught him this. The dungeon monsters didn't fight back in ways that exposed the gaps. The C-rank ecology was too weak to show him what he didn't know.
Koren had shown him in twelve minutes.
He walked to the freight elevator with Cole and thought about three days and the prediction model he needed to build and the fourteen mana points that weren't enough for reinforcement but might be enough to understand it.
The elevator doors closed.
"Cole."
"Yeah."
"Thanks for not telling me about the intelligence network."
Cole looked at him. "You mean that?"
"If I'd known, I'd have tried to control what Koren saw. She'd have read the control. The assessment would have been worse." He touched the cut. "I walked in honest. The data she has is accurate. That's worth more than a comfortable lie."
The elevator rose toward the loading dock.
Cole didn't say anything. But his posture shifted — the way it shifted when someone said something he hadn't expected but recognized as true.
The doors opened. Night air. The Tier 3 commercial district. Mira's transport at the curb.
She looked at the cut above his eye.
"Sit," she said.
He sat.
