People who are already sophomores have ushered in an exciting cruise-they will sail at sea for many days, as well as cultural events such as drama competitions. Rusty wanted to say goodbye to his virginity on this trip, so he racked his brains and tried to seize any opportunity, while the girls who joined anti-sex groups on the ship never forgot to set obstacles for Rusty. Professor Cavendish (Charles Shaughnessy), an archaeologist who travels with the ship, is secretly an artifact thief who wants to sell his diamond "Pharaoh's Heart" during the trip. However, things do not go according to people's wishes, the heart of diamonds is also an important prop for students in a play. By coincidence, Cavendish is calculated by an opponent hidden on the boat, and the real diamond appears as a prop in the drama competition. This class of college students who indulged in revelry and jealousy on the ship were inadvertently involved in a cultural relic case.