Every single day, Riku, a dull new employee, is yelled at by his boss, but he works hard at his job despite the difficulties. One day, he meets Yuko, a cleaner at the company. Among the dull cleaners, the beautiful Yuko stands out. Riku's life has changed completely from the days when he worked in fear of his boss, to the presence of Yuko, which brightens up his life. While unconsciously following Yuko with his eyes every day, Riku happens to see her undressing, and he pushes her down, giving in to his desire...