Eiko, Shizuka, and Mitsuki are a trio of gravure idols. Their popularity is booming, but there are rumors on the Internet such as "Have you gained weight recently?" Shizuka has even been suspected of being pregnant. In fact, the girls' weight has been rising steadily. The president of the office, while stating that "eating well is not a bad thing," told the girls that if they could not manage their health, they should quit the gradol business, and if they could not lose weight until Christmas time, they would be fired.

The three, all of whom love good food, join forces to face the challenges of dieting.