Kyotaro Tsugumo, a university professor and medical doctor, is the director of the Sexuality Research Institute. One day, a female college student, Eiko Tsugawa, visits Tsugumo to sell her "sex equation" that she has invented. A few days later, Eiko and her friends, Yuki and Midori, are asked by the editor-in-chief of a recently banned weekly magazine to investigate the actual situation of soaplands
| Release Date | January 13, 1973 | |
|---|---|---|
| Status | Released | |
| Original Title | 女子大生ＳＥＸ方程式 | |
| Runtime | 1h 9min | |
| Budget | — | |
| Revenue | — | |
| Language | Japanese | |
| Original Language | Japanese | |
| Production Countries | Japan | |
| Production Companies | Nikkatsu Corporation | |