Chikan torakku: Injo norippanashi [痴漢トラック 淫女乗りっぱなし]

Katsuma is a truck driver with a good mood but an empty head and wallet. One day, his brother, Riichi, asks him to double his pay, and he gladly accepts. Katsuma drives the truck smoothly, but suddenly, a flirtatious woman, Reiko, jumps out from the back of the truck...