The exhibition “Circulation” was held in Tokyo. Everything started from this exhibition. The basic concept of the exhibition was the reaffirmation of life. Drawing trees on paper, which is made from trees, is an act of returning something to its origin, which expresses the circulation of life. It has been developed into many goods including posters, picture books and tote bags. A picture book that links the behavior of animals in the woods to each letter of the alphabet from A to Z, expresses the circulation of words, the circulation of each day and the cycle of life in total.