A two-dimensional work using a pattern of Ishihara Color Vision Test Plate for the color-vision deficiency test. It is common to use a test plate which is unidentifiable for a color-blind person but Ishihara Plate No. 19 is a reversed version and only a color-blind person is able to identify the picture. Using the existing image as a picture which majority of people including the artist myself cannot “see.” Seeing is the action to be realized by trusting something not reliable.