Tsutaka Waichi was a vital member of The Genbi group with Jiro Yoshihara, a predecessor of the Gutai Art Association.
Gutai is now acknowledged as one of the most influential movements in art and has had an enormous impact on contemporary practice in Japan and worldwide. Its effects on more famous 20th-century performance art movements such as Happenings, Fluxus, and Viennese Actionism and the conceptual art of the 1970s are now widely recognized.
As well as being a painter, he is also a poet. Indeed, the poetic feelings that well up inside his soul are what he expresses in his painting. He does not define these inexplicit inner feelings structurally but visualizes them in their nebulous state. Thus, his work excites the viewer's imagination, who sees many images in it.