She can go on her long-awaited trip to Hawaii next summer... Unable to wait until then, Nanami changes into a swimsuit to at least enjoy the tropical mood. Her son comes along. Completely captivated by her busty, glamorous body that far exceeds his imagination and her too revealing bikini, her son proposes an oil massage to hide the raw saliva he swallowed. The mother's alluring skin that he touched for the first time. Before she knew it, the massage turned into caressing, and the two crossed the line between parent and child.