Nano Sector is a collection of four distinct manga stories. "Nano Sector: Chinmoku no Machi" was published in Bessatsu Hana to Yume in January 1994. "Kuragari no Ana" is another story in the collection. "Mizu no Naka no Neko" appeared in Bessatsu Hana to Yume in October 1992. Finally, "Akui no Tani" was published in Silky in September 1985. Each story offers a unique narrative within the collection.