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Diamond no Ace: Coach, I Want to Be a Batter, Not a Pitcher!

Chapter 137: The Noisy Training Routine · Nov 12, 2026

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Chapter List (248)

Page number / 5

101 Chapter 101 101: I Anticipated Your Prediction 2026-11-12
102 Chapter 102 102: The Showdown Continues 2026-11-12
103 Chapter 103 103: Battle of Wits 2026-11-12
104 Chapter 104 104: The Changes in You Shunshin 2026-11-12
105 Chapter 105 105: Isashiki — The Joy of Not Being the One Getting Scolded 2026-11-12
106 Chapter 106 106: Two Types of Cutter 2026-11-12
107 Chapter 107 107: Stealing All the Way 2026-11-12
108 Chapter 108 108: The Silent King — Narumiya Mei 2026-11-12
109 Chapter 109 109: Guessing 2026-11-12
110 Chapter 110 110: Sawamura, Who Isn’t Very Smart 2026-11-12
111 Chapter 111 111: You Shunshin’s Last Summer 2026-11-12
112 Chapter 112 112: Untitled 2026-11-12
113 Chapter 113 113: Complete Game 2026-11-12
114 Chapter 114 114: The Next Opponent — Yakushi High School 2026-11-12
115 Chapter 115 116: Seidou Goes Berserk 2026-11-12
116 Chapter 116 115: Raizō’s Provocation 2026-11-12
117 Chapter 117 117: The Loud Senior Gets Struck Out 2026-11-12
118 Chapter 118 118: Sawamura’s Enviable Talent 2026-11-12
119 Chapter 119 119: Narumiya Mei Is Being Manipulated 2026-11-12
120 Chapter 120 120: Seido vs. Yakushi High School 2026-11-12
121 Chapter 121 121: Raichi Todoroki 2026-11-12
122 Chapter 122 122: A Powerful Start 2026-11-12
123 Chapter 123 123: Isashiki’s Roar 2026-11-12
124 Chapter 124: One Inning Crushes Yakushi High School 2026-11-12
125 Chapter 125: The Ace Takes the Stage 2026-11-12
126 Chapter 126: A Powerful Showdown Between Pitchers 2026-11-12
127 Chapter 127 127: The Two Aces Feel the Pressure 2026-11-12
128 Chapter 128 128: Provocation? 2026-11-12
129 Chapter 129 129: Is This Retribution? 2026-11-12
130 Chapter 130 130: Head-on Showdown! Suppressing Raichi Todoroki 2026-11-12
131 Chapter 131 131: A Stunning Performance 2026-11-12
132 Chapter 132: Raichi Todoroki Strikes Out 2026-11-12
133 Chapter 133: The Sharp Cutter 2026-11-12
134 Chapter 134: The Match Ends 2026-11-12
135 Chapter 135: Ushijima, Do You Know How to Throw a Curveball? 2026-11-12
136 Chapter 136: I Shouldn’t Have Asked 2026-11-12
137 Chapter 137: The Noisy Training Routine 2026-11-12
138 Chapter 138: Slider 2026-11-12
139 Chapter 139: Quietly Doing Big Things 2026-11-12
140 Chapter 140: Digging a Trap for the Seniors 2026-11-12
141 Chapter 141: I Must Get to Koshien This Year 2026-11-12
142 Chapter 142: Opening Tactics 2026-11-12
143 Chapter 143: I’ll Give You a Taste of Ups and Downs 2026-11-12
144 Chapter 144: The More Provoked, the Tougher They Become 2026-11-12
145 Chapter 145: The Oppressive Presence of 195 cm 2026-11-12
146 Chapter 146: The Game Within the Game 2026-11-12
147 Chapter 147: The Double Pressure of Base-Stealing 2026-11-12
148 Chapter 148: Sensen’s Provocation 2026-11-12
149 Chapter 149: The More Provoked, the Stronger He Becomes 2026-11-12
150 Chapter 150: Pitcher Duel 2026-11-12

The next day, Seido’s training began as usual.

Sawamura and Furuya continued their regular routine—physical conditioning, pitch drills, and theory study.

Meanwhile…

Ushijima Wakatoshi was dragged straight to the field.

”Ushijima, you bastard! Hurry up and show us those three pitches you’ve been hiding!”

”I couldn’t sleep at all last night because of you!”

Isashiki complained loudly, clearly still irritated.

Beside him, Shirasu nodded silently.

As his roommate, he had also stayed up far too late.

In contrast, Ushijima had slept peacefully—and even gone to bed early.

”Here we go again,” Ushijima said lazily from the mound.

”If you guys had this much passion for finding girlfriends, none of you would still be single.”

”You bastard!!”

That hit a nerve instantly.

”Stick to baseball, not girlfriends!”

”And you don’t have one either!” Kuramochi snapped.

Ushijima shrugged.

”I don’t, but plenty of upperclassmen girls want to date me.”

”I even ran into Momoi-senpai earlier. We talked about going to the movies.”

”I told her I couldn’t today because I had to pitch for you guys…”

”…and she got so mad she said she’d assign Miyuki and Kuramochi extra homework.”

”WHAT?!”

Miyuki and Kuramochi exploded at the same time.

”We already have too much homework!”

”Are we even supposed to have time to practice?!”

”And you’re going on a date with her?! She’s my goddess!”

Kuramochi charged forward with a flying kick.

”Die, you bastard!”

Ushijima casually sidestepped, dodging it completely.

The field erupted into chaos for a moment.

Then—

”Alright, enough messing around.”

Miyuki adjusted his glove and crouched behind the plate.

”Let’s get started.”

”Ushijima, try a curveball first.”

”Bring it on!” Isashiki shouted from the batter’s box, pointing his bat forward.

Ushijima glanced down at the ball in his glove.

He adjusted his grip carefully—

Fingers slightly off-center, middle finger pressing along the seam, thumb supporting underneath.

Then—

He began his pitching motion.

At first, it looked identical to his fastball.

Same wind-up.

Same arm speed.

But at the moment of release—

His wrist snapped.

The ball left his hand with a distinct spin.

Isashiki’s eyes widened slightly.

But then—

”…It’s slow.”

That was his first thought.

The baseball arced high as it traveled—

Rising slightly—

Then suddenly dropping sharply as it reached the plate.

A clean 12-to-6 curveball.

Smack!

Miyuki caught it cleanly.

Isashiki didn’t swing.

The players watching from the side were visibly surprised.

Tanba, in particular, narrowed his eyes.

As a curveball specialist, he immediately recognized it.

That pitch…

Its vertical break was almost as sharp as his own.

The speed wasn’t impressive—

Just over 100 km/h.

But that wasn’t the point of a curveball.

A curveball relies on:

a large arc

a sharp drop

and disrupting timing

Even in professional baseball, curveballs typically range from 96–130 km/h.

They aren’t meant to overpower hitters—

They’re meant to deceive them.

Think about it like this:

If Ushijima throws two fastballs at 145 km/h…

And the batter adjusts to that timing—

Then suddenly—

A curveball at just over 100 km/h drops into the zone.

The batter’s timing collapses instantly.

Their swing becomes rushed or delayed.

And with the sharp drop…

It becomes extremely difficult to find the right contact point.

”This curve…”

Kominato glanced at Tanba.

”…isn’t much worse than yours.”

Tanba didn’t reply.

But his silence said everything.

Ushijima threw another pitch.

Same motion.

Same release.

The ball traced almost the same path.

This time—

Isashiki was ready.

”Got it!!”

CRACK!!!

He swung with full force and sent the ball flying.

”Haha! I hit it!”

”For the first time, I hit Ushijima’s pitch for a home run!”

”I’m definitely bragging about this!”

Isashiki laughed triumphantly.

Miyuki sighed.

”I literally told you it was a curveball beforehand…”

”Of course you could hit it.”

”Shut up!” Isashiki snapped.

”After getting shut down by this guy for months, can’t I enjoy one good hit?!”

His face was slightly red as he yelled.

Kominato smiled calmly.

”If you couldn’t hit it even after being told, you shouldn’t be batting third.”

”…I know that already!”

Isashiki shouted back, embarrassed.

The others simply watched, amused.

Miyuki then looked back at Ushijima.

”Your curveballs are too consistent.”

”The trajectory and landing point are almost identical.”

”Can you throw one with a bit more variation?”

Ushijima frowned slightly.

”Do you think I’m a machine?”

”It’s already good enough that I can throw it like this.”

”I haven’t practiced it much at all.”

”You expect me to suddenly add variation?”

He shook his head.

”This isn’t a fastball.”

”Slowing the pitch doesn’t magically give you better control.”

”The key to a curveball is its movement and drop.”

”If I haven’t trained it properly…”

”…there’s no way I can make it ’tricky’ on command.”

He wasn’t refusing.

He was just being realistic.

Right now, his curveball was still raw.

The trajectory was limited.

Most of his pitches landed near the center.

But—

Because of the sudden drop—

Even a center pitch wasn’t easy to hit.

Which was exactly why…

Isashiki hadn’t swung at the first one.

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