Overview
Miho is no longer feeling any excitement from sex with her boyfriend Shigeki. At a secondhand bookstore, she finds a book called "The Secrets of Female Body Development" that claims to turn any woman into a master of her vagina. She immediately tries to put into practice what is written in the book, but...
| Actor | Age then | Age now | |
|---|---|---|---|
 | - | - | |
 | 30 | 61 | |
| - | - | |
| 45 | 77 | |
| - | - | |
 | 32 | 64 | |
 | - | - |