Ren Mihashi is a pitcher who refuses to leave the mound, for better or worse. His middle school team despised him for this, blaming him for their string of losses and attributing his starting position to favoritism. Ultimately, Mihashi fled to a different high school, convinced he would never amount to anything in baseball. Upon enrolling at Nishiura High School, however, he is quickly drawn into the newly formed baseball team by people who recognize his abilities. Mihashi is paired with the gruff catcher Takaya Abe, who promises to bring out his full potential as an ace—provided he never disobeys his directions. This marks the beginning of Mihashi's journey to build the strength and confidence needed to stand alongside his new teammates on any field.