Mikado Hyuma, the ace of the Genkai High School baseball team, was eliminated from the regional qualifying rounds for the final Koshien tournament of his high school career. This man, who is far from being a professional baseball player, happens to play against Kiyohara in an all-star game! However, he is so frustrated that he was completely crushed that he starts practicing hard to defeat Kiyohara. Before he knows it, he has transformed into a pitcher who is attracting attention from the pros.

The Giants, stuck at the bottom of the standings for two consecutive years, suddenly has an extraordinary free agent join their ranks. His name is Ippei Sawamura. His personal life is a mess, but his pitching talent is Major League caliber. Will Ippei be the savior of the Giants, whose pitching staff has been decimated? Three of his high school teammates also join the team, as the revival of the prestigious Giants is entrusted to Ippei's right arm. (Source: eBookjapan.yahoo.co.jp, translated)