Shiri niku rider: Bukkakete seishun

Original title: 尻肉ライダー ぶっかけて青春

Sachiko's boyfriend, Joji, is an aspiring stage actor who has finally landed the lead role he's always dreamed of, but due to debts from a loan shark, he ends up working as a courier. Sachiko offers to do the courier work in Joji's place, but...