[Machine Translation] Gumi is a dog like white chocolate. Gumi lives with a human girl, Sachiko, and loves her very much. Gumi knows that Sachiko has a wish. A wish that Sachiko had, but could not say out loud. In order to make her wish come true, Gumi takes off into the dark night sky. And then... The first picture book by Ellie Omiya and Ryoji Arai.