The instructor's name was Hadley Park.
She ran a private training facility in Tier 3's eastern quarter — a single-room operation above a noodle shop, the kind of space that survived on reputation rather than advertising. Cole had called her at midnight. She'd agreed to a morning session without asking who Shin was.
"Cole says you need the fundamentals," she said when he walked in at seven a.m. "Fundamentals of what."
"Mana-reinforced combat mechanics. The timing signatures. How reinforcement changes acceleration and deceleration curves."
Hadley was fifty, heavy-built, with the hands of someone who had spent decades hitting things and being hit by them. B-rank. Level Forty-four. She looked at Shin the way a mechanic looks at an engine someone else built.
"You don't use reinforcement."
"Fourteen mana."
"Fourteen." She processed that. "Level One?"
"Level One."
"Then you don't need to learn how to use it. You need to learn how to read it." She walked to the center of the training floor. "Strip your shirt. I need to see how you move."
He stripped the compression shirt. The cut above his eye from the Voss fight had closed overnight — twenty-two endurance running its repair cycle — but the bruising on his ribs was still visible. Purple-green against the dark skin.
Hadley looked at the bruising pattern. "Mana-reinforced body shots. Someone fast. Speed-type primary."
"Last night."
"In the Circuit." Not a question. She knew Cole's world. "All right. The reason reinforcement messes with your reads is physics. A non-reinforced strike follows muscle mechanics — contraction speed, peak force, follow-through deceleration. The timing is biological. Predictable." She raised her fist. "Reinforcement changes the physics. The mana component adds acceleration mid-strike. The peak velocity comes later in the strike arc than muscle mechanics alone would produce. The deceleration window shortens because the reinforcement sustains the force past the biological follow-through."
She threw a jab. Slow motion. No reinforcement.
"Watch the knuckle velocity. See where it peaks — about sixty percent through the extension. That's the muscle's maximum contraction speed."
She threw the same jab with reinforcement. The difference was visible even in slow motion: the fist accelerated past the sixty-percent point instead of plateauing. The peak velocity came at eighty percent of extension.
"The extra twenty percent. That's what's breaking your reads. Your pattern recognition is trained on biological timing. When the peak shifts, your prediction fires early. You're reacting to where the strike should be at peak velocity, but the strike hasn't peaked yet. It's still accelerating."
She was right. That was exactly what had happened against Voss. His forty perception had predicted the strike timing based on biological movement patterns. The mana reinforcement had pushed the peak velocity window twenty percent later in the arc, and his predictions had fired on the wrong timing.
"The fix isn't learning reinforcement," Hadley said. "The fix is recalibrating your prediction window. You need to learn the reinforced timing signature well enough that your reads account for the late-peak acceleration."
"How long."
"Depends on your perception stat. Most people take three to four weeks of daily training to recalibrate. The perception processes the new timing data and gradually adjusts the prediction model." She looked at him. "What's your perception."
"Forty."
Her eyebrows moved. "At Level One."
"At Level One."
"Forty perception." She was quiet for a moment. "With forty, the recalibration should be faster. Maybe a week. Maybe less. The perception stat's processing speed determines how quickly new timing data integrates into the prediction framework." She paused. "But the only way to build the data is to experience it. You have to take reinforced hits and track the timing differential until your perception integrates the pattern."
"How many hits."
"Depends on the perception stat's learning rate. For a standard B-rank with fifteen to twenty perception — several hundred. For forty?" She shrugged. "I've never trained someone with forty perception at Level One. Most Level One awakeners are at eight to twelve."
She stepped into stance.
"Ready?"
"Go."
The first hit was a reinforced jab at quarter power. The mana component was lower than Voss's — Hadley was calibrating for training, not combat. The strike connected with Shin's guard and he tracked the timing differential.
The peak velocity arrived at seventy-eight percent of the extension arc. Twenty percent later than biological baseline. The force sustained through the impact window instead of dropping off at contact.
His perception logged the data.
"Again," he said.
She hit him again. Different angle. The reinforcement timing was consistent — the late-peak acceleration was a function of the mana application, not the strike type. Jabs, crosses, hooks, body shots — all showed the same shifted timing signature.
After twenty strikes, his perception started adjusting. The prediction window shifting to account for the late-peak acceleration. Not fully calibrated — the predictions were still off by about ten percent of the arc — but moving.
After fifty strikes, the ten percent closed to five.
After eighty, he was reading the reinforced timing accurately enough to predict the strike's peak velocity within two percent of the actual arc position.
Hadley stopped.
"Eighty strikes," she said. She looked at him the way Koren had looked at him after the manufactured stumble. "Most B-ranks take three hundred. You did it in eighty."
"Forty perception."
"Forty perception is part of it. The other part is that you're processing the data differently." She sat on the training floor's edge. "Most fighters recalibrate by repetition — the body learns through accumulated experience. You're recalibrating analytically. Your perception isn't just logging the timing data. It's modeling the mana-reinforcement physics and applying the model across strike types."
She was describing what the forty perception points actually did. Not just sensory input — computational processing. The perception stat at forty was running a real-time physics model of reinforced combat mechanics.
"The defensive recalibration is done," she said. "Your reads are accurate now against standard B-rank reinforcement. But—" She held up a hand. "Reinforcement levels vary. A Level Thirty-eight with moderate mana uses standard reinforcement. A Level Sixty with high mana uses amplified reinforcement — the timing shift is more extreme, the late-peak window extends further. You're calibrated for one level. Not all levels."
"The Circuit will expose me to different levels."
"If Koren's smart about the matchmaking. Which she is." Hadley stood. "Come back after each fight. We'll recalibrate for whatever the new opponent showed you."
"What do I owe you."
"Cole's credit covers the first three sessions." She looked at the bruising on his ribs. "After that, you owe me an answer. One question. Whenever I decide to ask it."
An answer. Not money. Information.
Everyone in this ecosystem traded in information. Koren. Cole. Now Hadley. The currency wasn't credits — it was knowing things about the people who moved through the system.
"Deal," he said.
---
He spent the afternoon in Greyhollow Basin. The C-rank ecology died the same way it had died every day for the past four days. The counter ticked. 0.01% per kill. The cardiac monitor sent its flat telemetry.
22.4%.
At five p.m., Mira picked him up at the dungeon site. The proximity detail followed.
"The behavioral detection algorithm," she said as they entered the Tier 4 transit corridor. "Orin ran the projection."
"And."
"Your C-rank accumulation rate over the past four days is consistent: point-three-eight to point-four-two percent per day. The Framework's monitoring algorithm has established your baseline." She looked at the road. "The Circuit fight added point-three percent to yesterday's total. Your daily accumulation was point-five-two instead of the predicted point-four."
"A point-one-two deviation."
"Within the variance range for now. The algorithm flags deviations above point-two." She paused. "One Circuit fight per event, at point-three attribution, keeps you below the flag threshold. Two fights per event pushes you above it."
One fight per event. Maximum. Or the Five Pillars' monitoring system would detect the deviation.
"Koren books one to two fights per card," Shin said.
"Then you fight once per card for now." Mira's voice was clinical. The medical-precision mode she used when the variables were clear and the optimal response was calculable. "Point-three per fight, three events per week, gives you point-nine percent per week from the Circuit plus the C-rank baseline of two-point-eight. Total: three-point-seven per week."
"The timeline."
"Twenty-one weeks to Level Two at three-point-seven per week." She looked at him. "Five months."
Five months. Longer than the fifteen-week estimate he'd calculated with two fights per event. The behavioral detection algorithm constrained the Circuit's contribution.
"Unless the baseline changes," he said.
"Unless you find a way to increase the C-rank baseline without triggering a flag. Or unless the B-rank dungeon access situation changes." She turned into the Tier 4 residential district. "Or unless you accept the flag and let the Five Pillars know you have another experience source."
He thought about that.
Accepting the flag meant the Framework's algorithm would notify five guild intelligence teams that his accumulation pattern had changed. They'd investigate. Some would find the Circuit — Phantom's intelligence operation, specifically, had the Tier 3 networks to locate Koren's venues.
If Phantom found the Circuit, they'd learn Koren's data on Shin's capabilities. The detailed combat profile. The gaps and the strengths. The mana vulnerability.
Koren's network was contained. The Framework's investigation wouldn't be.
"One fight per card," he said. "For now."
Mira nodded. She pulled into the residential block. The proximity detail parked fifty meters back.
"Your heart rate spiked during the Circuit fight," she said as he opened the door.
He stopped.
"Ninety-four beats per minute at peak. The first combat elevation I've recorded since the transition." She looked at the cardiac monitor's data. "The C-rank dungeon produces nothing. The Circuit fight produced a genuine stress response." She paused. "Your body knows the difference between a threat and a task."
A threat and a task. Voss had been a threat. The C-rank ecology was a task.
His body knew the difference even when his conscious assessment didn't.
"The mana-reinforcement recalibration," he said. "I did eighty reps with Hadley Park this morning. My perception integrated the reinforced timing signature."
"How long did that take."
"Ninety minutes."
She was quiet. "Standard recalibration takes three to four weeks."
"Hadley said the same thing."
Mira looked at the cardiac monitor. Then at him. The expression she made when she was processing data that fit a pattern she hadn't named yet.
"The forty perception isn't just sensory," she said.
"No."
"It's computational. You're running real-time physics models for combat mechanics."
"Hadley's analysis."
"Mine too." She set the monitor down. "The cardiac data, the recalibration speed, the spatial awareness — the perception stat at forty is operating differently than it does at standard levels. It's not a linear scaling of what fifteen or twenty perception does. It's qualitatively different."
Different. Not the same thing at higher numbers. A different category of function.
"Track it," he said. The same thing he'd told her about the cardiac data.
"I am." She picked the monitor back up. "Everything about you, Shin. I'm tracking everything."
He looked at her. The expression on her face wasn't clinical anymore. Something underneath it — something that had nothing to do with cardiac telemetry or perception stat analysis.
She caught him looking and the expression closed. Professional distance reasserting.
"Same time tomorrow," she said. "Six a.m."
He got out of the transport.
The night air. Tier 4 residential. The proximity detail in position. The shadow experience counter at 22.4%.
Two days until the next Circuit card. The recalibrated prediction model sitting in his perception's processing framework, ready for the next fight's data.
And Mira's cardiac monitor, storing twelve days of data on a body that was becoming something that standard medical frameworks didn't quite describe.
He went inside.
