The ball left his hand wrong.
Seams rolling off the pads instead of snapping clean, too high on the fingers. Kai knew it before the pitch crossed the plate. High and inside, the kind of delivery that punished catchers who weren't ready.
This catcher was ready enough. Good stance, soft hands. But the ball arrived faster than his hands could process, popping off-center in the mitt, and he yanked the glove down a beat late to sell a strike that hadn't been one.
"Ball two," the umpire said.
Kai stood on the mound and waited. The secondary diamond east of Armin-Wolf-Arena. Trimmed grass, a regulation mound with a proper slope, metal bleachers along the first-base line where parents and a few younger siblings sat bundled against October. Two hundred meters behind the right-field fence, the floodlight towers of the main stadium cut the grey sky. The Bundesliga club's grounds were dark today. No game. Just this: an end-of-season friendly between the Wolves' U-18 squad and Augsburg's. Kai was fifteen. Most of the players on both sides had two or three years on him.
Leaves had collected in the shallow grass behind the mound during the last half-inning. Nobody had cleared them. A maple leaf lay on the rubber, brown-edged, curling into itself. Kai stepped on it and set.
The throw back arrived chest-high. Kai snagged it. Standard club issue, clean seams, decent leather. The Wolves kept proper equipment. He turned the ball in his fingers once and found the four-seam grip by feel.
Seven players stood behind him. They did their jobs. Clean routes, soft hands, relay throws that landed chest-high. The scoreboard said 8-0 in the fifth.
The cleanup hitter from Augsburg settled into the box. Good stance, balanced load, hands set where a coach had drilled them. He'd fouled two pitches in his last at-bat, which was more contact than anyone else had managed all afternoon. He crowded the plate, bat steady.
Kai threw a fastball down the middle. Low three-quarter slot, the ball running arm-side with the natural angle his frame produced. He didn't think about the angle. His arm went where it went.
The bat twitched but didn't commit. The kid tracked the ball into the mitt, recognizing the location a beat after it arrived. Strike two.
Same pitch. Same spot. The batter swung. Mechanics sound, timing wrecked. His front foot planted right but the bat lagged through the zone, arriving where the ball had been. It wasn't a bad swing. The ball was just gone.
"Out."
He walked off the mound. The opposing coach had been adjusting his lineup card since the third, moving contact hitters up, shortening stances, doing what a competent coach does against a pitcher who outclasses the level. None of it changed the math when the ball arrived at 140.
In the dugout, Kai sat, drank water, and waited for the inning to end. His arm felt like his arm. He hadn't thrown hard enough for it to feel like anything else.
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Daiki caught the sixth.
End-of-season friendlies ran loose. Coaches rotated players, experimented with positions, rested the starters who needed it. Daiki had spent five innings at shortstop while the backup catcher handled Kai's pitches. When Daiki took over behind the plate, everything changed.
The mitt went quiet. No late adjustments, no glove-wrestling. Daiki's target settled into position before the pitch left Kai's hand and stayed there, absorbing the ball with zero aftershock. The pop was clean. Leather to leather, nothing wasted.
He gave signs. Index finger, pinky extended. Fastball, inside corner. Pitch selection was academic against a lineup that hadn't squared anything up since the second inning, but Daiki gave signs because that was how Daiki caught. Every pitch had a purpose, even when the purpose was invisible to everyone else.
Kai shook off the first sign. The batter was crowding. Daiki shifted the target outside without complaint, without pause. He just moved.
The ball hit the glove with a sound that bounced off the backstop. Daiki held the frame, presenting the pitch, then fired it back with a throw that split the air.
Three pitches. Three strikes. The batter walked back to the dugout with his bat over his shoulder.
Two more innings with Daiki behind the plate. Kai threw a knuckleball for the first time all game, the slow one, and Daiki caught it like it was a fastball. Glove open, hands soft, absorbing the wobble instead of fighting it. The backup catcher would have stabbed at it and missed. The batter swung at air a foot above the ball. With Daiki catching, the whole arsenal opened up. Fastball at 140. Knuckleball at 105. The speed gap broke timing in a way the fastball alone couldn't. The game had been decided long before, but with Daiki behind the plate, the pitches carried a different weight.
Between innings they sat on the bench together. Kai stretched his legs past the dugout's overhang, spikes pressing into the seam where concrete met gravel. Even at 195 centimeters the bench was low enough that his knees pointed skyward.
"You're short-arming," Daiki said.
"Am I."
"First pitch to the left-hander. Your elbow dropped before your shoulder came through."
Kai picked up a ball from the bucket beside the bench. Scuffed leather, grey from a season of use. He turned it in his fingers. "Went where I wanted."
"Went where your arm decided. Different."
Kai set the ball back. Across the diamond, the Augsburg squad was loading gear into their team bus. One of their outfielders laughed at something. The scoreboard behind the left-field fence had a dead bulb in the away column, so the score read 1_-0. Close enough.
"Last game of the season," Daiki said. He wasn't looking at the Augsburg bus. He was looking at the mound.
Kai looked at it too. The rubber, the worn circle of dirt around it, the leaf he'd stepped on still pressed flat. "Yeah."
Behind the backstop, Coach Nishimura stood in a dark jacket with his arms folded. He wasn't coaching today. Upright, still, present without participating. His eyes rested on the empty mound and didn't move from it. He'd been there since the first pitch.
The seventh ended it. Final score, 11-0. Kai struck out fourteen in seven innings. He unstrapped his glove and walked toward the equipment shed while parents in the bleachers gathered their things. The Augsburg coach caught his catcher by the shoulder, leaned in, said something. A word carried across the parking lot. Fünfzehn. Fifteen. Kai kept walking.
The shed smelled like leather conditioner and rubber. Kai dropped his glove in the bucket with the others and sat on an overturned crate while Daiki sorted the game balls from the practice balls. Always sorting. Kai stretched his arm overhead, testing. The shoulder was loose, warm, unbothered. Seven innings and his arm felt like he'd played catch. He hadn't needed to push.
-----------------------
They walked home the way they always did. Down the gravel path past the shed, through the parking lot where the Augsburg bus and a scatter of parent cars were still clearing out, and west along the road that followed the river toward the bridge.
The first stretch was all commerce. A furniture warehouse with its lights still on, a petrol station, a supermarket parking lot half-empty at this hour. Newer buildings, flat roofs, nothing older than Kai's parents. The equipment bag hung from one shoulder, strap pulling a diagonal across his chest. Daiki walked beside him, hands in his jacket pockets, half a head shorter.
"My father's going back to Japan."
Kai glanced at him.
"Miyazaki Prefecture. His old high school offered him the head coaching position. Baseball." Daiki's pace didn't change. His voice didn't change. Information, delivered. "He leaves in December to set up the program with Mom and Yuki. We fly out in March."
"We."
"We."
They reached the Danube. Grey-green, fast, swollen with autumn rain. Wind came off the water and pushed against Kai's jersey, finding the gaps where the fabric hung loose. They turned onto the Steinerne Brücke. Eight hundred years of stone under Kai's feet, worn smooth by traffic that predated the combustion engine by half a millennium.
"When?"
"Late March. You'd start the Japanese school year in April."
Five months. Kai's shoulders adjusted under the bag strap. Five months was the whole winter. Frozen mornings biking to school, the indoor facility at the Arena with its rubber mound and fluorescent lights, the Danube running grey and low through January. Then a country he'd never been to and a language he half-understood from years of overhearing the Nishimuras at dinner.
His parents would say yes. His mother would call it a once-in-a-lifetime cultural experience and his father would check the school's academic standing and agree anyway, because his parents trusted the Nishimuras and the Nishimuras had never steered wrong. Neither of them would ask whether Kai wanted to go. The answer had never been the point. He was going because Daiki was going, and this was how things had worked since they were ten years old. One of them decided. The other followed.
"You'll pitch for the team," Daiki said.
"Alright."
"It's different there. Japanese high school baseball. It's not this."
They'd reached the middle of the bridge. Kai leaned his elbows on the stone railing. Cold through his sleeves, rough-grained, darker where the rain had soaked in. Below, the Danube pushed southeast under the bridge's shadow, carrying leaves and branches and the occasional plastic bag. All of it moving faster than the surface suggested. A branch turned slowly in the current, caught between two speeds, rotating once before the faster water pulled it under and it was gone.
"Alright," Kai said.
Daiki watched him for a second. Then he pushed off the railing and walked.
On the far side of the bridge, the old town. Cobblestones dark from the rain. Wet stone smell. Yellow light through a ground-floor window, a television going. A bicycle against a lamp post, no lock.
Kai followed Daiki into streets he'd walked since he was ten. His equipment bag dug into his shoulder. He shifted the strap, and the adjustment took all the thought he had.