This work integrated the two aesthetic elements of mathematics and craft. It is named after a Zen phrase by a monk, Ryokan. He says Flowers invite butterflies with no intention. Butterflies visit flowers with no intention. Mathematical formulas are also attractive. Kaijima Sawako developed a software based on Enneper surface, by mathematician Alfred Enneper. And she draw it up so that Chikuunsai could cut the bamboo, dye, and make into a piece of art. It is a fusion of crafts and mathematics.