The Voice Actors visit the spots in Koto that are the model for Kyousougiga, and give a detailed introduction to the motifs and episodes that inspired the show.  They visit Kurama Temple, and the real Enzanji where where the Choujuugiga and picture of Koto's mother are held.
A Goshuin book is like
Ein Goshuin-Buch ist wie
Y es como un libro de estampas
Es como un libro de sellos
C’est une collection de timbres
que l’on reçoit en visitant les temples.
E ele é como um livro de carimbos