Concept of the series "BLACK" A series of works that attempts to match subject matter and technique. The "black" is not monochrome, but color. Black" is created by layering or removing colors. The perception of color is greatly influenced by one's organic and cultural background. The sensory organs are the body, and the work is a consideration of the individual differences in organ systems and the environmental factors that affect them. Each species of living creatures has different visual perception. People also have individual differences, whether small or large (color vision, height, eyesight, and other organic factors), and each person has a different vision. Perception and the world" is also a "theory of the body. In order to refer to the empathy that transcends individual differences, we use the technique of "first coloring" and "nullifying" the color.