After criticizing the plot of my favorite manga, "High School'S Weakest Ace," I was reborn as the protagonist's rival, 'Kim I-Seon.' Tall with handsome looks, a left-handed ace who throws an impressive 160km/h as a high school student. A talent that even Major League scouts have their eyes on. However, in the finale, his shoulders and elbows shatter, forcing him to abandon his athletic career due to his fragile body. I decided to somehow preserve this talent. *Typography work was assisted by Kkuo! The cover uses AI-generated images. All responsibility lies with the author.