In the cozy confines of the Outdoor Activities Club room, a small yet vibrant group indulges in the joys of camping through creative DIY projects. Nadeshiko Kagamihara, captivated by the thrill of outdoor adventures, yearns for another solo trip. But when invited by Ayano Toki and Rin Shima to camp by the Ooi River, her plans take a new turn. Excited for their inaugural joint expedition, the girls embark on a voyage to weave cherished memories that will linger in their hearts for a lifetime.