The practice game on the final day of the training camp. Tanba's demon pitch is chasing after them, now that he's awoken as the true Ace!! But then he is unavoidably taken out of the game, leaving his team in complete disarray. In this emergency situation, the pressure is put on first-year Sawamura's shoulders... Seido is in crisit without their Ace. But summer waits for no one! Can this team weather this trial together?! Finally, the Koshien qualifying games begin!!