This book follows the story of Ayumi Miyazaki a girl who love nature and enjoy to watch the vegetation's changes from season to season describing them with delicate beautiful sketches and personal words in her diary. It also includes some old illustrations by Hayao Miyazaki set in the Totoro's world and a special interview about his memories in Tokorozawa.

Index:

- Kami no Yama
- The sketches and the diary of Ayumi Miyazaki (Spring, Summer, Fall, Winter)
- "Hachikokuyama description" by Toshio Suzuki
- "The landscape of Tokorozawa where the world of Totoro has been created" by Hayao Miyazaki
- A landscape in the future - Sayama Hill -
- The map of the land where Totoro is born