Eijun Sawamura, the pitcher of a novice junior high baseball team, meets with a bitter walk-off loss. For Sawamura the loss becomes his last game in junior high, so he sets a new goal of going to the nationals in high school with his teammates. As he begins his hard quest on studying, a guest arrives unannounced. Her name is Rei Takashima. Rei had been watching his last game and believes Sawamura has a gift. She is the assistant director of the prestigious Seidou High School Baseball Team, and she invites Sawamura to Seido after seeing his potential. Sawamura's reply shocks her, but Takashima refuses to give up and tricks Sawamura into a visit.
Eijun Sawamura, de par son caractère, risque de se fermer les portes de la plupart des lycées. Cependant, la visite inattendue d’une représentante du célèbre lycée Seido pourrait changer la donne…
中学最後の試合でサヨナラ負けを喫した野球部ピッチャー“沢村栄純”。彼は甲子園出場の夢をチームメイトと同じ高校に進学することで果たそうとする。だがそこに東京の名門野球高校から来たという突然の来客が……。
폐교 전 마지막 공식전을 패배로 마치게 된 아카기중 야구부. 팀 주장이자 에이스인 에이쥰은 상대팀의 조롱에 사고를 치고... 고등학교에 가서 다시 한 번 꿈에 도전하자는 친구들과의 약속은 저질 학력 때문에 험난해 보였다.
Eijun es un estudiante de secundaria fanatico del beisbol que va a una escuela que no cuenta con un buen equipo para aspirar a jugar el torneo nacional. Cuando se preparaba para seguir en la preparatoria junto a sus amigos, ocurre algo que cambiara su destino.
棒球部投手泽村荣纯参加初中最后的棒球大赛，却在第一回战中投出暴投而输掉了比赛。想为即将废校的学校扬名，带领学校棒球球队进军甲子园的梦想也因此破碎。本来决定要与初中的好友一同考入故乡的高中，没想却被东京的棒球名校青道高中相中挖角。在参观青道高中棒球练习之时，泽村荣纯遇到了天才捕手：御幸一也。
