Summer Comes to the Watermelon Patch

Toutaku forces Hakufu to battle Ryofu, otherwise Ryoumou will be killed. The girls fight each other, but also attempt to go after Toutaku. It looks like no one will be able to win, until Ryofu defies her fate, and uses her ultimate technique. Hakufu and Ryoumou learn Saji's true identity and they go to rescue Koukin and confront Saji.