A pure-hearted female college student stays overnight at a rental villa with her boyfriend for her first romantic experience. Mysterious men and fishermen suddenly appear one after another, assaulting her. Amidst tender affection and intense desire, she has her tongue entwined, her body touched, and reacts strongly even as she gets wet. Her hips sway like the ebb and flow of the tide, creating a wave-like sensation of entwining and parting repeatedly.