Ooboonuu and Chiiboonuu by Naoko Takeuchi and Yoshihiro Togashi, translated as “Big Boonuu and Little Boonuu”, is a children’s story. It is the only full-color work that Naoko Takeuchi, creator of Sailor Moon, and her husband Yoshihiro Togashi, creator of Hunter x Hunter and Yu Yu Hakusho, have ever created.

This book was written for the couple’s children, and eventually they decided to publish it for everyone to enjoy.