Chisato has been troubled….
The painful symptoms of menopause finally subsided, and just as she felt relieved, she began to feel an unprecedented strong sex drive.
After researching various sources, she discovered that 'after menopause, women may experience increased sex drive due to higher levels of male hormones.'
Chisato spends her days trying to satisfy this intense desire on her own. One day, she finds herself alone with her daughter's husband.
Coincidentally, her daughter is pregnant and has been in a sexless marriage. Learning this, Chisato makes advances towards her daughter's husband…
'Don't hold back. I know how painful it is to suppress sexual desire.'
Until now, Chisato has maintained her rationality and lived her life seriously. But now, her rationality crumbles as she succumbs to instinct and pleasure.
