Geniuses who made a name for themselves in middle school baseball but have been away from baseball accidentally come together at an obscure metropolitan high school. Haruka Kiyomine is a pitcher with an unbeatable arm. His partner, the shrewd catcher, Kei Kaname, is now an amateur due to amnesia!. And then there are the two of them. And those who were defeated and scattered by the two in the past… The story of their high school baseball game is about to begin again!