Amid a nostalgic Showa-era atmosphere, the desires of mature women unfold. Middle-aged and older women in their fifties and sixties follow their hearts without regard for the passage of time, rekindling passion. Like late-blooming flowers, a pair of sisters who have reached their sixtieth birthday reignite a long-dormant incestuous desire. Bonds of the past merge with present emotions as these mature men and women dive into deep love and sex, taking a bold new step forward.