The baby boomer generation was born in postwar Japan and spent their lives working hard for their families. But reaching retirement age doesn't mean growing obsolete. This film follows a wife with a cheating husband, burning with desire for revenge, as she's ignored throughout five years of marriage and her intimate life with her husband fades away. Lonely and desperate, Kyoko can no longer hold back, finally reaching the ultimate moment of slow, intense sex. This work captures the drama of the baby boomer generation's lives and explores deep emotional complexity.