After her husband loses his job, Aoi visits Ozawa's company for an interview to help make ends meet. Although she applied for an office position, Ozawa offers double the pay to become his secretary—on the condition that she also signs a mistress agreement. He promises their contact will go no further than kissing, and she accepts for her family's sake. But his kisses feel as obscene and pleasurable as penetration, driving Aoi to break the agreement herself and demand a physical relationship with him.