Companion Human is a collection of ten stories that deals with the subject of the ecological restoration of humans and nature.

Companion Human is a collection of stories that deal with the subject of the ecological restoration of humans and nature. Ecologism, as defined by the author, encompasses the ecological restoration of physical nature, the purification of the social system, and the restoration of individuals and community. In modern society—with its self-centered rational brutality, materialism, and human alienation—it is very difficult to realize ecologism. Even so, the author conveys his wish for ecological restoration in ten stories.

The title story, “Companion Human,” is about dogs that have become the masters of Earth and humans who have become the dogs’ companions. It is an imaginary situation that can be seen only in a children’s story: humans have lost their standing to dogs because of environmental pollution. But this story is an alarm bell in the wake of the current COVID-19 crisis, which was caused by the actions of humans. 

The stories “The King of Fishing,” “A Chick and a Chick Pheasant,” “Footprints Left in the Air,” and “Pepper Flower that Became a Star” talk about how we have to preserve nature, as it is precious. The author believes that nature is not something to be conquered but a friend that humans need to respect and communicate with to build a community of nature.

The stories “There Is No Telling,” “A Blind Quick of Sight,” “Children from One Village,” “A Day when the Sound of Footsteps Has Disappeared,” and “Treasure Ship” deliver the message that regardless of physical differences and the gap between the rich and poor, people should respect and have affection toward one another.

The author deals with the purity of children, which cannot be completely described in other literary genres, and also talks about all the living things on Earth, a theme that he wants to share with elementary school students and teenagers as well as family members and neighbors.