University students Ryoko and Akane get lost on a mountain road on their way home from a hike. They finally reach a bus stop, but there is no sign of a bus coming. Furthermore, Ryoko has an injured leg, and Akane's boyfriend is at a drinking party and cannot come to pick her up. The two decided to hitchhike out of the goodness of their hearts. It seemed reckless deep in the mountains, but as luck would have it, a camper pulled up. From the driver's seat...