When her husband Masao's struggling construction company is bought by Ozawa, Masao stays on in sales while Yurine becomes the new owner's secretary. But she carries a secret debt from the company's darkest days. Ozawa offers to lend her the money on one condition: she must become his mistress. Soon his secretary's daily duties include deep kisses, sweat-soaked sex, and creampies on the president's-office desk.