They ran the three-on-three again.
Daichi had ordered it without preamble, no speech, no setup, just a flat announcement at the start of practice that the first-years would run another set while the upperclassmen watched.
The unspoken reason was obvious.
The freak quick had been glimpsed.
The freak quick needed to be tested.
The freak quick was either a weapon or a fluke, and the team needed to know which.
Tsukishima stood across the net from it with his arms folded and his face arranged in its default expression of mild disinterest.
The expression was a lie.
The lie was necessary.
Kageyama took the first serve.
His toss was ordinary: a standard outside arc, clean spin, predictable placement.
Tsukishima read it on reflex and didn’t bother moving.
The point went to someone else.
The serve was a warm-up.
The real test was coming.
Five rallies passed.
Six.
Seven.
Kageyama ran his offense through the wing spiker, the same pattern he’d used in the first three-on-three, the same conventional sets Tsukishima had been shutting down all week.
The overlay resolved cleanly on every one.
Tsukishima didn’t block them all, that would have been showing off, but he called the placement on every single one, and the team heard him calling, and the calls were right.
And then Kageyama set to Hinata.
Not to where Hinata was.
To where Hinata would be.
The ball left Kageyama’s fingers in a line so flat it barely cleared the net tape, traveling at a speed that should have been impossible for a set, hitting the point in space where Hinata’s palm would connect with it if, and only if.
Hinata was already swinging.
Hinata was already swinging.
The connection was silent.
Not the impact: the impact was a gunshot, the sound of a ball hit at full extension with no warning and no defense, but the moment before it.
The half-second where the decoy’s eyes were closed and the setter’s hands were still raised and the ball traveled a line that shouldn’t have existed, toward a point in space that a week ago would have been empty.
The ball hit the floor on Tsukishima’s side of the net.
He hadn’t moved.
His overlay had given him nothing.
The instrument had seen the set leave Kageyama’s fingers and registered the trajectory as impossible and returned the same grey static it had been returning since the first scramble.
The gym erupted.
“THAT’S IT!” Hinata’s voice broke on the third word.
He was already airborne, already celebrating, already bouncing toward Kageyama with his arms out.
“THAT’S THE ONE!
THAT’S THE—” “Don’t hug me.” “I’M NOT HUGGING YOU.
I’M—” He hugged him.
Kageyama’s expression contorted through four stages of displeasure and landed on something that might, under very generous lighting, have been satisfaction.
“AGAIN,” Hinata shouted.
“DO IT AGAIN.” Kageyama’s jaw tightened.
“You can’t just demand—” “I’M DEMANDING.” The bench had gone loud.
“DID YOU SEE THAT?” Tanaka was on his feet.
“Noya.
Tell me you saw that.” “I saw it.
I’m still not sure I believe it.” Sugawara’s expression was complicated, proud and pained and generous all at once, the face of someone watching his replacement succeed and choosing to be happy about it.
“That’s a real weapon,” he said, quietly, to no one in particular.
Daichi didn’t answer.
He was already doing the math on how many sets a weapon like this could steal.
Tsukishima reset his stance.
The burn in his palms was background noise.
The coolness at the edge of his attention was recovering from the failed read, grey static draining, clean lines returning, and the instrument was ready to go again.
He wanted to try the read one more time.
The instinct was to spend Focus on parsing the quick, to force the overlay to resolve something it clearly couldn’t resolve, to prove that the instrument could do what it was supposed to do.
He suppressed the instinct.
The over-read tax had a name.
The name was “outside the game,” and paying it against a weapon he already knew he couldn’t parse was just ego with a different label.
The rally resumed.
Kageyama tried the quick again.
This time Hinata’s eyes were open: a small adjustment, a concession to control, and the timing was a fraction slower.
The ball grazed his palm and wobbled over the net.
Playable.
Survivable.
Not the same weapon.
“EYES CLOSED,” Hinata shouted.
“IT WORKS BETTER WHEN MY EYES ARE CLOSED.” “That doesn’t make sense,” Kageyama said.
“IT DOESN’T HAVE TO MAKE SENSE.
IT JUST HAS TO WORK.” Kageyama’s expression did something complicated.
The setter was trying to solve a problem his own precision couldn’t account for.
His tosses were perfect.
His placement was exact.
But the weapon required him to trust a hitter who operated on instinct, and instinct was the one variable Kageyama’s math couldn’t predict.
He set to Hinata again.
Eyes closed.
Full speed.
The ball traveled the impossible line and Hinata’s swing met it at the apex and the result was the same gunshot, the same explosion, the same point scored on a defense that had seen it coming and still couldn’t stop it.
Tsukishima didn’t move for the block.
He’d seen the read fail twice now.
A third attempt would be data, not strategy.
When the set ended, Tsukishima’s side won, barely, because the quick was still a low-percentage gamble and the conventional offense was still reliable.
Daichi clapped once, calling the gym back together.
“Starting duo.
Effective this week.” No one argued.
Even Sugawara only nodded.
Tsukishima walked to the bench and sat down.
Yamaguchi appeared beside him with a water bottle.
The ritual was automatic now.
Towel.
Water.
Ninety seconds of recovery.
“It’s real,” Yamaguchi said.
“The quick.” “It’s real.” “You couldn’t read it.” “I couldn’t read it.” “That bothers you.” Tsukishima took the water bottle and drank before answering.
The pause was deliberate.
The answer, when it came, was flatter than he’d intended.
“It’s a data point.
The data point is that some plays can’t be read conventionally.
The counter is to read the hitter instead of the set.
The counter requires hours of observation I haven’t logged.” “So you’re going to watch Hinata now.” “I’m going to watch everyone.
Hinata happens to be on the court.” Yamaguchi’s mouth twitched.
“You’re such a liar.” The word landed without weight.
Yamaguchi had been calling him a liar with affection since elementary school.
The affection was the point.
The point was that Tsukishima was already logging the data.
Hinata’s approach, his timing, the tell he hadn’t identified yet, and he was pretending it was just good practice.
Across the gym, Hinata had cornered Kageyama again.
The setter’s face was doing the angry-register thing, but he wasn’t walking away.
He was listening.
The king was listening to the shrimp.
The duo’s chemistry wasn’t trust yet.
It was something cruder, desperation meeting precision and producing a result neither of them could control.
But it was working.
And if it kept working, Karasuno had a weapon the bracket wasn’t ready for.
Tsukishima finished his water and let the bench absorb the rest of practice.
The coolness at the edge of his attention had steadied to its baseline.
The instrument was waiting.
He wasn’t going to aim it at the quick again.
Not today.
Tomorrow.
Tomorrow he’d start logging Hinata’s tells.
Tomorrow he’d find the seam in the one thing his read couldn’t crack.
The resolution wasn’t passion.
It was math.
The math said the quick was a problem.
The math said the problem had a solution.
Tsukishima had always been good at math.