8 books in series

Chirri & Chirra

Chirri & Chirra is a 8-book series with 8 released primary works first released in 2005 with contributions by Kaya Doi.

Chirri & Chirra
Chirri & Chirra: In the Tall Grass
Chirri & Chirra: The Snowy Day
Chirri & Chirra: On the Town
Chirri & Chirra: Under the Sea
Chirri & Chirra: The Rainy Day
Chirri & Chirra: In the Night
Chirri & Chirra: Underground