Who Are You?.Ko enters Seishu High School and joins the baseball club along with Akaishi and Nakanishi, where they are put on the second-string "prefab" team (so-called because it is housed in a prefab hut) headed by former Head Coach Maeno. Most of the varsity team are ringers recruited by new Head Coach Daimon from around the country, including power hitter Yuhei Azuma, the boy from the batting center, and Daimon promises Shido that he will take the school to the national spotlight of Koshien within three years...