Nao, a young wife, was spending her days in a dreary mood. That was because her husband, an elite employee, was on a business trip overseas. At that time, Nakagawa, a junior colleague at her husband's company, came to their house. Nakagawa had secretly had feelings for Nao for some time. Nao, realizing this, seduces him. At that time, a delivery man appears and witnesses Nao and Nakagawa's affair. The delivery man's fantasies grow as he is captivated by Nao's amazing boobs...