The preview video depicts an average day for the main characters of the show, Memempu (CV: Amane Kanon) and Gagumber (CV: Touchi Hiroki), as they wake up, eat breakfast, and take the train into town.
Memempu also listens to a radio program narrated by DJ K (CV: Hiroshi Kamiya), a popular broadcaster.
A young girl, Memempu, who wants to be a Marker one day, and a man, Gagumber, who used to be one.