The story takes place in the town of Izumo, in Shimane prefecture, a place steeped in folklore and ancestral traditions.

Among them is the myth of Kamiari, which has given rise over the centuries to a series of celebrations that take place in October. Formerly, the month of October was called "Kannazuki" ("the month without gods") but in Izumo, it is called "Kamiarizuki" ("month of the gods") because it is considered that during this time of the year , a myriad of deities gather for a pilgrimage to the city's sanctuary.

At the heart of this place lives Kanna, a young girl passionate about racing who suddenly loses all her motivation when her mother dies.