One of the characteristics of oil paints is that, once the paint dry, the color doesn't mix with others even if piling up on it. This is why the oil painting can build complex and deep layers of painting. It is Megumi Sato's attempt to have effectively sublimed such the characteristic of the oil paints to a certain technique. Sato creates painting by piling oil paints about in eight layers on a panel with undercoat, and cutting down the surface with a graver or a cutter. It might recall the relief-like panting of Yoshishige Saito who made it by using a drill. However, the violent is not felt in the painting of Sato. The color layers which appear and disappear on the elaborate screen might recollect the richness of colors in the lower layer of the rainbow. By the way, it is said that rainbow has seven colors in Japan. Is the painting of Sato made in iris?