The Outdoor Exploration Club continues its excursion in Izu! Between walking up Mount Omuro, seeing capybaras bathing in a hot spring, and cooking up some spiny lobster, the girls have plenty more to enjoy. But there's also something extra-special about this camping trip: Nadeshiko's and Inuko's birthdays! Can the rest of the OEC successfully pull off a surprise party, or is the secret already out...?