What is the source for the twin girl spirits?
The girls came from “Futago no Hoshi” (Twin Stars), a children’s story by Kenji MIYAZAWA. Miyazawa is a famous writer in Japan, and Takahata and Miyazaki loves his works. There are several things that were taken from Miyazawa’s works in Pom Poko. Gauche the Cellist is a Miyazawa story directed by Takahata.