In place of his older brother, who died due to an injury during the Koshien final match, the main character , Junjiro, becomes the ace pitcher of Hiryu Gakuen High School's baseball team , and aims to succeed his brother's will and conquer Koshien. The confrontation between Jiro Hayabusa and Jugo Yagyu is the axis of the story, and the main feature of the work is the confrontation with the magic ball that Jiro unleashes and the secret hits and strategies to break it.