Kirishima, leader of an adult college sex club, meets a porn director at a bar and asks him to film an upcoming hot-spring trip. Three male club officers plan to have group sex with a new adult female member, and the director joins while posing as part of the club. Their target is a fair-skinned adult college student with a sweet, innocent look. Easily pressured and quick to climax, she is forced into submission during the debauched getaway.