Based on the comic by Tatsu Kariya.Featuring journalist Shiro Yamaoka who works for Touzai Shimbun. He is a cynical food critic who is tasked by the newspaper's owner, along with the young Yuko Kurita, to provide recipes for the "ultimate menu".

The Oishinbo gang takes time off from the normal culinary wars to get involved with a political dispute about American rice imports. The economic conflict between a pushy US Senator from California and a nationalistic Japanese politician is further complicated by concerns about the cumulative effect of pesticide use in both American and Japanese agriculture.

Culinary journalists Shirou Yamaoka and Yuuko Kurita must prepare the menu that will represent the Touzai Newspaper on an upcoming competition against the Teito Newspaper. The theme: food that promotes longevity. For a better research, both journalists head to Okinawa, place with the highest life expectancy in Japan.