Meanwhile, back on the island, Hiroka and Soka are having a hard time finding food. They're exhausted from the rain and the heat of the day, and they can't sleep on the beach because it draws too much heat away from their bodies. So they're going to have to find something else to eat. The only thing they can find is red berries, which are poisonous, but they are edible, so they'll have to eat them. Hiroka, Soka, and four other girls are all on the same island, which means they've got to help each other. The girls decide to gather some yuzu juice and use it to make an oral re-hydration solution.