The Tanita Corporation has developed the world's first body fat measuring device. The company itself also has many overweight employees. Because of this, the company finds it difficult to persuade prospective customers to buy their product. Company President Tanida Unosuke then orders all of his employees to go on diet. Vice President Konosuke hires nutritionist Nanako to oversee the project. Employees are to eat twice at a company restaurant, but problems arise in sequential order. With Nanako's magic recipe, employees at the company begin to see results.