Angel Guts: Red Classroom (1979)

The second in the series of nine films that make up the infamous Japanese pink movie franchise Angel Guts, Angel Guts: Red Classroom (1979) follows a porn writer (Keizo Kanie) on his obsessive quest to find an actress (Yuuki Mizuhara) he has seen in a violent porn movie. When he finally finds her working as a receptionist at a school, the writer discovers that she was actually being assaulted during the movie and needs his help. Along the way, we see boobs and butt from Jun Aki, some unknown actresses, and Yuuki. Angel Guts will make you wrangle your nuts!