Yuka is the first female manager at a renovation company. She married her subordinate Takeshi, but she is strict with her work and is even described as "arrogant." One day, a complaint is made that there was a mistake in the renovation she was contracted to do. Yuka goes to apologize, but her attitude only angers him more, and he forces her to insert a vibrator and tell her to "show sincerity." After that, the complaints continue, and Yuka is called in each time and attacked with a vibrator. However, this leads Yuka to the pleasure of humiliation...