Ace of Diamond: I'm the Pitcher

The pitcher is the most eye-catching player on the field, the ace, and the first line of defense. Miyamori Shinichi has always worked hard for this belief.

In his second year, he transfers to Seido High School. What kind of future awaits him at this prestigious baseball school? With a powerful new pitcher on the team, will the third-year seniors still be left with regrets?

Original characters, no romance.

The story mainly follows the male protagonist's life as a pitcher at Seido, as well as his youthful days with his teammates.

Disclaimer:

This is the author's first novel, so there are bound to be logical issues. I'll definitely think things through and revise as I go, so please don't flame me.

The baseball rules are all based on the anime and reference sources, and aren't professionally researched.

Theme: Making up for the regrets I felt while watching the anime.