Human beings have long been fascinated by urushi / Japanese lacquer, regardless of the rash that can result from this sap, and have continued to solemnly create objects using this material. On the other hand, urushi trees have suffered scars on their entire trunks in order to provide their valuable sap. Maruyama applauds and extends her appreciation to the lasting relationship between people and urushi, which has continued for over 9000 years.