Daisuke Ichijou heads to his grandmother's beach resort for a vacation. Upon arrival, he takes in the stunning beach and the even more attractive women there. Before long, he resolves to enjoy himself "his own way." He comes across several girls who ensure the trip remains unforgettable, such as his former friends, the mischievous Nao Ihara and the affluent Mitsugu Tsukushino, who begin competing for his attention. Daisuke also runs into his cousin Maya Koromogae and her awkward friend, Momona Amamiya. Kanae Shinjou and Mika are present too, and they too happen to "get involved" with Daisuke during his stay. These six girls are responsible for making Daisuke's vacation intense, enjoyable, and memorable. As they place Daisuke in numerous complicated scenarios, he discovers that they frequently result in passionate erotic encounters.