As spring break heats up on the tropical island, Daisuke navigates the ongoing rivalry between Nao and Mitsugu, who both seek his attention during a group outing. His reunion with cousin Maya brings familiar comfort, yet the arrival of energetic Kanae and her friend Mika shifts the dynamic with their bold energy and playful invitations. Together, the women draw Daisuke into shared adventures that blend relaxation with unexpected closeness, deepening connections amid the sunlit scenery.