Nasu is a collection of stories that centers on a recurring cast of characters, including Takama, a farmer, and a young girl named Aya Takashi. Aya starts the series abandoned by her father, living in Tokyo with her two younger siblings. As the manga advances to its second volume, she leaves the city to live in the countryside with her relatives, near Takama's farm. In addition to the chapters featuring Takama and Aya, other tales are included, such as one chronicling samurai in the Edo period hunting forbidden eggplant (nasu), another set on a futuristic Mount Fuji, a story about a truck driver, and Summer in Andalusia, which follows professional Spanish bicyclist Pepe Benengeli and served as the basis for the film adaptation.