Somewhere in Japan, Fart Kotsubo Village exists in the middle of the countryside. Due to its remote location, this village was isolated from the mechanical civilization , and a unique "super country civilization" had developed. The main character, Chosaku Inabe, is a genius inventor who represents the village. He lives a peculiar and carefree rural life surrounded by strange villagers and livestock with human-like emotions .

One day, Jun Miyakogawa, an elementary school student born and raised in the city, transfers to Chosaku's school.