Three high school girls are given a chance of saving their beloved city park from destruction by entering a softball tournament. With no softball experience and facing a tight deadline they race to recruit enough girls to form a team.

The Bemars, with Nanamaru's amazing Su-Ro-To pitch, battle Magurosuisen; but Maguro has a wicked pitch of their own and the Bemars hopes to save Hatsumori Park begin to fade before their eyes.

Nanamaru shocks Polaris with her Magic pitch but her shoulder worsens with every throw. The Bemars are overwhelmed by Kirei's Fire Windmill pitch but they fight on. As the battle rages, the fate of Hatsumori Park hangs by a thread.