Ace of Diamond: Sign-In for a World-Class Fastball from the Start!

A little white ball tears through the air like a silver lightning bolt!

The boy swings and smashes a home run. After a moment of dead silence, the crowd erupts into screams!

His name is Ji Ning, a backup pitcher who cannot even afford the school enrollment fee.

Everyone says, "What makes some kid from China think he can make it in Tokyo's baseball scene?"

But when his fastball breaks 150 km/h and his forkball brings powerhouse hitters to their knees,

the people who mocked him all fall silent!

Top schools compete to offer him admission without exams, and professional scouts come pouring in.

From perennial backup to high school ace, all it takes is one summer!

The black dirt of Koshien is waiting for him to stain it with his own colors.

A backup player rises to the top. Every pitch is a face-slapping moment, every game makes him a legend!

A white-hot, blood-pumping story, from the dust to the summit!

This novel and its characters are entirely fictional. Any resemblance to real people or events is purely coincidental. Do not imitate.