Seven years into marriage, SAKI begins cleaning offices after her husband's business failure leaves them dependent on her part-time income. She grows close to HAJIME, a new employee at one of the offices she cleans, as their morning conversations reveal the loneliness and hardship each carries. Their feelings finally overflow into a secret affair. Perfectly matched in bed, the married cleaner and energetic young recruit begin every day by fucking before work—in the empty office, restroom, and changing room. His relentless pounding makes her cum wildly and feel like a woman again.