Chapter 1
1. The Switch Pitcher Returns to the Past
Inside the warm, crowded atmosphere of a street food tent, the customers were drinking and enjoying themselves.
Everyone was relaxed, but one man alone gave off a gloomy aura.
Strangely, even though his left arm could stretch straight, it was unnaturally twisted. His right hand, which held a shot glass, trembled slightly.
Haa…”
[Seo Ji-tae]
Age: 35
Occupation: Former Baseball Player
He repeatedly emptied his glass, pouring alcohol into his body.
Those fucking bastards.”
Seo Ji-tae ground his teeth as he rubbed his left shoulder.
Even when he stayed still, a dull pain throbbed through it. Beneath his thin T-shirt, the surgical scar felt like an ugly snake coiled around his shoulder.
This shoulder had once been his greatest pride.
It had been everything in his life.
But that glory was gone now.
[Control is important! What good is throwing fast if that’s all you can do!]
Back in middle school, he had been called a left-handed monster.
A fifteen-year-old boy standing on the mound had casually thrown pitches at 150 km/h.
Before entering high school, scouts from all over the country had their eyes on him. Prestigious schools fought over him, offering extraordinary scholarships.
[Please send Seo Ji-tae to our school! We’ll turn him into the best player!]
Back then, Seo Ji-tae thought the whole world was beneath his feet.
But after entering high school, the people around him forced him to change his pitching form, claiming they needed to improve the control of his fastball.
[Listen to adults who have more experience than you! You’re only a freshman, yet you’re already this arrogant! You need to become a proper person before becoming a player!]
[Ji-tae, if you don’t pitch, the team will lose. You’re the ace. You have to show some fighting spirit!]
His pitching form was changed against his will, and the velocity that had been his greatest strength began to fall.
If that had been the only problem, he might have endured it.
The real problem was the abuse that came with being a high school baseball player.
The shoulder and elbow of a seventeen-year-old boy were worn down like disposable tools.
Eventually, during the semifinals of a national tournament in the summer of his second year, the ligament in his left arm screamed as it tore apart with a snap.
While Seo Ji-tae lay in the hospital, despairing that his life as a pitcher was over, his coach made a suggestion.
Instead of pitching left-handed, he should switch to his right hand.
You used to throw with your right hand for fun when you were a kid, didn’t you? Change your form and become a right-handed submarine pitcher. You’ve got great baseball instincts, so you’ll still make it to the pros.”
Seo Ji-tae desperately wanted to survive.
So he drank from that poisoned cup.
That was how the left-handed fireballer disappeared.
He converted into a right-handed submarine pitcher.
But the abuse did not stop.
He barely managed to reach professional baseball, but after being used again and again as a mop-up reliever, even his remaining healthy shoulder was completely ruined.
After suffering through everything, he was mercilessly discarded.
He could not let it end like this.
But unlike soccer, baseball did not have many active professional leagues around the world.
Seo Ji-tae blindly headed for an independent league.
The conditions were uncomfortable.
The pay was terrible.
He went there for one reason alone.
Baseball.
And there, Seo Ji-tae met the coach who changed his life.
[Seo! Why did you only come here now? That frisbee slider of yours is like watching your country’s BK, Kim Byung-hyun! If you had come just a little earlier…]
Antonio.
A former Major Leaguer.
He had never been a superstar, but he had survived as a regular Major League player.
The former Major Leaguer’s words stabbed deeply into Seo Ji-tae’s heart.
[Seo, look at this data. Since 2010, pitch velocity has kept rising. If your submarine fastball can break 150 km/h, you might even become a closer in the Majors!]
Only then did Seo Ji-tae learn about the so-called velocity revolution and data-driven baseball.
He finally realized his potential.
But by then, he was already thirty-five.
I’m too late.”
At the age of thirty-five, Seo Ji-tae finally succeeded in throwing 150 km/h with a right-handed submarine delivery.
He completely dominated the independent league.
But he was no longer considered valuable by professional teams.
Hoping to become a closer or even a one-point reliever, he knocked on the door of Major League Baseball.
But this time, an injury was discovered in his right shoulder.
It was not fatal to his career.
However, it was enough to remove any reason for a Major League team to take a chance on him.
Seo Ji-tae emptied his final glass.
Then he collapsed forward.
If.
If only he could be given one more chance.
He would never destroy his arm for someone else again.
He would stand on the mound only for himself.
He would become the most selfish and ruthless pitcher possible.
His consciousness was fading.
Then he heard something.
[Then why don’t you try again? Let’s see how long that resolve lasts.]
A voice.
Who?”
Seo Ji-tae tried to open his eyes.
But his consciousness had already drifted far away.
Ji-tae! Today’s your first team meeting, and you’re still sleeping? Don’t blame me if you’re late!”
A sharp pain struck his back.
Seo Ji-tae’s eyes snapped open.
His head should have been heavy from alcohol, but strangely, it was clear.
The familiar smell of mothballs stung his nose.
Old floral wallpaper.
The desk he had used in middle school.
This was his room in his family home.
The room where he had lived during high school, eighteen years ago.
How many times have I told you? If you’re late, the coach will remember it! Hurry up, wash yourself, and come out!”
His mother’s nagging.
She looked far younger than he remembered.
Seo Ji-tae could not say anything.
He stared blankly at her.
Mom, you look younger.”
What are you talking about? Hurry up and wash!”
Seo Ji-tae walked toward the mirror in a daze.
Then his eyes widened in shock.
T-This is…”
Inside the mirror stood a lean, solid boy who was 180 centimeters tall and weighed 80 kilograms.
This is insane…”
Seo Ji-tae carefully rotated his left shoulder.
Smooth.
The strange grinding sensation caused by his torn ligament was gone.
The stabbing pain had disappeared.
His left arm had been perfectly restored.
It was young and full of elasticity.
Then he looked down at his right arm.
His body was not fully developed yet.
An unfinished vessel.
But there was something far more important than that.
Youth.
He had returned to his first year of high school.
No way.”
The knowledge he had before regressing.
The sensations and mechanics Antonio had taught him.
They were all clearly engraved inside his head.






