両親の仕事の都合で東京から引っ越してきた一条蛍は、小中併設校の「旭丘分校」に転入することになる。しかし、そこは自分を含めて全校生徒がわずか5人の学校だった。道路には「牛横断注意」の標識があり、バスは5時間に1本しか来ないほどの田舎[注 1]での、一条蛍、宮内れんげ、越谷夏海、越谷小鞠、越谷卓ら分校生徒の、日々の光景を描く。
Asahigaoka might look like typical, boring countryside to most; however, no day in this village can ever be considered colorless thanks to five students of varying ages occupying the only class in the only school in town. The youngest student is first grader Renge Miyauchi, who brings an unadulterated wit, curiosity, and her characteristic catchphrase, "Nyanpasu!" Then there are the Koshigaya siblings consisting of the quiet ninth grader and elder brother Suguru, diminutive eighth grader Komari, and the mischievous seventh grader Natsumi. The recent arrival of Tokyo-raised fifth grader Hotaru Ichijou, who appears overdeveloped for her age and thus naturally holds an air of maturity, rounds out this lively and vibrant group of five classmates.
Based on the manga penned and illustrated by Atto, Non Non Biyori chronicles the not-so-normal daily lives of this group of friends as they engage in their own brand of fun and frolic, and playfully struggle with the realities of living in a rural area.
