Akane Sawamura, a plain, earnest, and quiet single bank clerk, is having an affair with her married boss, Director Iida. Meanwhile, Daikoku, the owner of an adult entertainment shop, who was denied a loan by Iida, finds out about Akane's affair with Iida and threatens Akane. Akane, fearing that her relationship with Iida will be discovered, decides to work at Daikoku's shop without telling Iida...