Luna-chan arrives at a driving school camp. Despite it being a two-week camp, she forgets to bring underwear because of her habit of always going commando at home! As she attends the lessons without underwear, the male students and instructors gradually notice and mistakenly believe she's inviting them! The usually reserved Luna-chan gives in to their advances and ends up having sex! She even complies with their advances in the training cars and empty classrooms...